Frozen shoulder is a recognised complication following simple arthroscopic shoulder procedures, but its exact incidence has not been reported. Our aim was to analyse a single-surgeon series of patients undergoing arthroscopic subacromial decompression (ASD; group 1) or ASD in combination with arthroscopic acromioclavicular joint (ACJ) excision (group 2), to establish the incidence of frozen shoulder post-operatively. Our secondary aim was to identify associated risk factors and to compare this cohort with a group of patients with primary frozen shoulder. We undertook a retrospective analysis of 200 consecutive procedures performed between August 2011 and November 2013. Group 1 included 96 procedures and group 2 104 procedures. Frozen shoulder was diagnosed post-operatively using the British Elbow and Shoulder Society criteria. A comparative group from the same institution involved 136 patients undergoing arthroscopic capsular release for primary idiopathic frozen shoulder. . The incidence of frozen shoulder was 5.21% in group 1 and 5.71% in group 2. Age between 46 and 60 years (p = 0.002) and a previous idiopathic contralateral frozen shoulder (p < 0.001) were statistically significant risk factors for the development of secondary frozen shoulder. Comparison of baseline characteristics against the comparator groups showed no statistically significant differences for age, gender, diabetes and previous contralateral frozen shoulder. . These results suggest that the risk of frozen shoulder following simple arthroscopic procedures is just over 5%, with no increased risk if the ACJ is also excised. Patients aged between 46 and 60 years and a previous history of frozen shoulder increase the relative risk of secondary frozen shoulder by 7.8 (95% confidence interval (CI) 2.1 to 28.3)and 18.5 (95% CI 7.4 to 46.3) respectively. Cite this article: Bone Joint J 2015; 97-B:963–6

Post-operative pain is well recognised in patients undergoing shoulder surgery. With the recent advances in arthroscopic shoulder surgery over the last decade, a larger number of cases are being performed in day surgery units. These procedures are generally performed under general anaesthetic with either an interscalene or suprascapular nerve block or local anaesthetic infiltration. The aim of our prospective audit was to investigate the adequacy of analgesia provided for patients, undergoing day case arthroscopic shoulder procedures in a rural district general hospital, to ensure best medical care and to tailor certain procedures to appropriate analgesic pathways in the future. Fifty consecutive patients, who underwent day case arthroscopic shoulder surgery, were contacted by telephone one week post surgery, to assess their post-operative pain scores and analgesic requirements. Patients who received a nerve block were found to have a significantly longer duration of pain relief (p < 0.001). These patients also had significantly less pain performing their usual activities of daily living in the immediate post-operative period (p = 0.05), compared to patients who only had local anaesthetic infiltration. There was no trend found between the type of procedure and post-operative pain scores. Our audit has confirmed that nerve blocks provide longer pain relief, but has also highlighted the need to take into consideration pre-operative pain and pain perception to enable analgesia to be tailored

Purpose of Study: This study was done to assess the efficacy of EQ5D (EuroQol), a simple quality of life (QOL) score. The study was designed to test the feasibility and reliability of using this simple QOL score alongside Constant score following arthroscopic shoulder surgery. Though Constant score gives a shoulder related outcome it does not provide a patient perspective of outcome in relation to their quality of life. Methodology: A prospective cohort study of 100 consecutive patients listed for arthroscopic shoulder surgery between May and December 2005 were recruited. Assessments were undertaken both preoperatively and at 6 months post operatively. EuroQol is a simple 5 question self administered questionnaire and the Constant score was recorded by the treating physician who was blinded to the result of the EuroQol. Data was assessed for normality and non parametric tests were used. Statistical significance was assumed at the p< 0.05 level. Results: The median age of 54 years (32 to 79). 60% were male. The median pre operative EuroQol score was 0.26 with a median post operative score of 0.71. Preoperatively, the median constant score was 31.0 with a postoperative score of 72.0 The difference between pre and post operative scores in both the EuroQol and Constant scores was shown to be statistically significant (p< 0.0001 in each group). In the 200 paired observations the two scores were also shown to be closely correlated RS statistic 0.71 (p< 0.0001). Conclusion: EQ5D is easily completed by the patient by a self administered questionnaire and reflects the quality of life improvement attained after shoulder surgery. It is very easy to use compared to other available QOL scores like SF12, SF36. We recommend its routine usage along with Constant Shoulder score as there is a strong positive correlation

Interscalene brachial plexus block is the standard regional analgesic technique for shoulder surgery. Given its adverse effects, alternative techniques have been explored. Reports suggest that the erector spinae plane block may potentially provide effective analgesia following shoulder surgery. However, its analgesic efficacy for shoulder surgery compared with placebo or local anaesthetic infiltration has never been established. We conducted a randomised controlled trial to compare the analgesic efficacy of pre-operative T2 erector spinae plane block with peri-articular infiltration at the end of surgery. Sixty-two patients undergoing arthroscopic shoulder repair were randomly assigned to receive active erector spinae plane block with saline peri-articular injection (n = 31) or active peri-articular injection with saline erector spinae plane block (n = 31) in a blinded double-dummy design. Primary outcome was resting pain score in recovery. Secondary outcomes included pain scores with movement; opioid use; patient satisfaction; adverse effects in hospital; and outcomes at 24 h and 1 month. There was no difference in pain scores in recovery, with a median difference (95%CI) of 0.6 (-1.9-3.1), p = 0.65. Median postoperative oral morphine equivalent utilisation was significantly higher in the erector spinae plane group (21 mg vs. 12 mg; p = 0.028). Itching was observed in 10% of patients who received erector spinae plane block and there was no difference in the incidence of significant nausea and vomiting. Patient satisfaction scores, and pain scores and opioid use at 24 h were similar. At 1 month, six (peri-articular injection) and eight (erector spinae plane block) patients reported persistent pain. Erector spinae plane block was not superior to peri-articular injection for arthroscopic shoulder surgery

Aims: Intra-bursal versus inter-scalene post-operative effective pain control for Arthroscopic Shoulder Surgery. Methods: We prospectively collected data over a consecutive two year period, the first year patients (n=65) all having inter-scalene and the second year patients (n=79) having intra-bursal catheters. The interscalene 16F catheters were placed with the patient anaesthetised and an electrical Touhy needle. The intra-bursal 16F catheters were placed at the end of the arthroscopic shoulder operation, under direct vision, exiting from the posterior portal. Pain parameters collected were pain scores, visual analogue scales, analgesia usage, and whether or not the patients were comfortably able to go home the same day as surgery. Results: Pain and visual analogue scores showed no statistical differences between the two groups. Analgesia usage was greater in the inter-scalene group than the intra-bursal group, but was not statistically different. 32/65 (49%) of patients with inter-scalene catheters and 75/79 (95%) of patients with intra-bursal catheters were able to comfortably go home on the day of surgery, 28/33 (84%) of the inter-scalene patients were hospitalised due to post-operative pain, and 5/33 (15%) due to anaesthetic or medical problems. 2/4 (50%) of hospitalised intra-bursal patients had post-anaesthetic complications, and 2/4(50%) had pre-operative medical problems. Conclusions: Inter-scalene analgesia is widely published as the most effective for post-shoulder surgery pain control. Our data does not support this view, intra-bursal analgesia administration was found to be more effective at returning a comfortable patient home on the day of surgery. Our practice now routinely utilises intra-bursal catheters for either bolus analgesia or continuous pumps

The October 2023 Shoulder & Elbow Roundup. 360. looks at: Arthroscopic capsular shift surgery in patients with atraumatic shoulder joint instability: a randomized, placebo-controlled trial; Superior capsular reconstruction partially restores native glenohumeral loads in a dynamic model; Gene expression in glenoid articular cartilage varies in acute instability, chronic instability, and osteoarthritis; Intra-articular injection versus interscalene brachial plexus block for acute-phase postoperative pain management after arthroscopic shoulder surgery; Level of pain catastrophizing rehab in subacromial impingement: secondary analyses from a pragmatic randomized controlled trial (the SExSI Trial); Anterosuperior versus deltopectoral approach for primary reverse total shoulder arthroplasty: a study of 3,902 cases from the Dutch National Arthroplasty Registry with a minimum follow-up of five years; Assessment of progression and clinical relevance of stress-shielding around press-fit radial head arthroplasty: a comparative study of two implants; A number of modifiable and non-modifiable factors increase the risk for elbow medial ulnar collateral ligament injury in baseball players: a systematic review

Rotator cuff or long head of biceps tendon tears are common in patients with degenerative shoulder rotator cuff disease. Most often they are investigated with an MRI scan. Diagnosis prior to surgery is useful for the appropriate surgical planning. We present 63 consecutive patients who had arthroscopic shoulder surgery and prior to that had MRI investigation between 1994 and 2001. Their medical records were reviewed; arthroscopic operative findings as well as the report of the MRI scan were recorded and compared retrospectively. The aim of our study was to assess the accuracy of MRI findings comparing the arthroscopic ones regarding rotator cuff and biceps tendon pathology. There were 63 patients with mean age 58 years. All of these had MRI scan investigation and the waiting time prior to surgery was 10 months. It was found that there were 6 false (−)ve, 1 false (+)ve and two cases with full thickness cuff tears which were reported as probable tears. Further to that, there were 11 frayed biceps tendons, 8 partially ruptured, 3 subluxed, 4 complete ruptures and 1 SLAP lesion. All biceps lesions were not commented in the MRI scan reports. MRI scan is very sensitive detecting soft tissue pathology in shoulder investigation. However, even on that basis, rotator cuff and in particular biceps tendon pathology can be missed. The shoulder arthroscopy is the best method to accurately diagnose those lesions. However, it should be noted that often the surgeon has got to alter to working surgical plan in order to address the problem intraoperatively. In this study it is demonstrated the MRI scan often misses rotator cuff or long head of biceps tendon pathology. The most sensitive method for the diagnosis of it is the shoulder arthroscopy, which address its treatment in the same time

The purpose of this study is the evaluate the net promotor score of arthroscopic subacromial decompression and rotator cuff repair.

The Friends and Family Test, a variant of the Net Promoter Score, was adapted for the National Health Service to evaluate overall patient satisfaction and how likely patients are to recommend an intervention. It ranges from −100 to 100. Positive scores indicate good performance.

This study quantifies the scores in 71 patients at 1 year following arthroscopic sub acromial decompression and rotator cuff repair. All of the procedures were performed by 1 consultant shoulder specialist. The patient filled out a shoulder questionnaire pre-operatively, at 6 months and 1 year.

The score was 72 for subacromial decompression (n = 32) and 85 for rotator cuff repair +/− decompression (n = 39). Oxford shoulder score was also taken and had a rise of 4.3 and 6.9 respectively. Our study indicates that these procedures are highly valued and are recommended by patients according to the Friends and Family Test. The results of the Friends and Family Test correlated well with postoperative functional improvement and satisfaction.

We conclude from this study that a compound score based on the Friends and Family Test is a useful addition to traditional measures of patient satisfaction.

Introduction: We present a double blinded prospective randomized controlled trial between viscoseal and intraarticular diamorphine injection in shoulder arthroscopy.

Materials & Methods: Twenty adult patients undergoing arthroscopic subacromial decompression were randomised into two groups. The Viscoseal group received 10ml of Viscoseal and 10ml of 0.5% bupivacaine injected into the subacromial bursa at completion of the procedure (n=10). The matched control group received 10mg diamorphine and 10mls of 0.5% bupivacaine (n=10). All procedures were performed by the senior author. The patients were blinded to the injections given. Post-operative regimes were standardised and all patients were assessed by visual analogue pain scores at recovery and 1, 2, 6, 12 & 24 hours post-operative. The presence or absence of nausea and time to discharge were also noted.

Results: The mean age of the Viscoseal group was 53 (range 34–70) years and in the control group 59 (32–85) years. In the Viscoseal group 40% of patients were discharged on the same day, while there were no early discharges in the diamorphine group this difference did not reach statistical significance (P=0.054 by Fisher’s exact test). There were no significant differences in post-operative pain score or the fraction pain-free between the two groups or in supplementary analgesic drug doses given (all P> 0.08). Only 10% of the Viscoseal group were nauseous post-operatively compared to 60% of the control group (P=0.03 by Fisher’s exact test).

Discussion: Arthroscopic surgery has never been more popular. Patients like smaller scars, early discharge and quick return to daily life and work; for surgeons arthroscopic surgery is skilful, satisfying and digitally recordable; and the NHS benefits from reduced hospital stay and post-operative complications.

Review of the literature involving the use of viscoseal in shoulder surgery revealed no direct comparison with diamorphine, but only to bupivacaine alone.

Many methods of post-arthroscopic pain relief are available. In our hospital diamorphine with bupivacaine is standard, at £2.57 per treatment. In the present study nausea was significantly lower in the Vicoseal group, but no significant intervention was required and oral anti-emetics sufficed. Pain was not significantly different, and there were no significant differences in supplementary analgesia or in early discharge. In our opinion, the significant improvement in nausea alone is not enough to justify the high price of £52.88 per Vicoseal treatment. We believe that the benefits for routine use have not been demonstrated.

Background Various methods of analgesia have been described for shoulder surgery, and we routinely used inter-scalene analgesia. We hypothesised that inter-scalene analgesia provided better pain control than intra-bursal analgesia.

Methods We prospectively collected data over a consecutive two year period, with the first year patients (n=65) all having inter-scalene and the second year patients (n=79) having intra-bursal catheters. The interscalene 16F catheters were placed with the patient anaesthetised and an electrical Touhy needle. The intra-bursal 16F catheters were placed at the end of the arthroscopic shoulder operation, under direct vision, exiting from the posterior portal. Pain parameters collected were pain scores, visual analogue scales, analgesia useage, and whether or not the patients were comfortably able to go home the same day as surgery.

Results Pain and visual analogue scores showed no statistical differences between the two groups. Analgesia useage was greater in the inter-scalene group than the intra-bursal group, but was not statistically different. 32/65 (49%) of patients with inter-scalene catheters and 75/79 (95%) of patients with intra-bursal catheters were able to comfortably go home on the day of surgery, 28/33 (84%) of the inter-scalene patients were hospitalised due to post-operative pain, and 5/33 (15%) due to anaesthetic or medical problems. 2/4 (50%) of hospitalised intra-bursal patients had post-anaesthetic complications, and 2/4(50%) had pre-operative medical problems.

Discussion Inter-scalene analgesia is widely published as the most-effective route for post-shoulder surgery pain control. Our data does not support this view, and intra-bursal analgesia administration was found to be more effective at returning a comfortable patient home on the day of surgery. Our practice now routinely utilises intra-bursal catheters for either bolus analgesia or continuous pumps.

Adequate visual clarity is paramount to performing arthroscopic shoulder surgery safely, efficiently, and effectively. The addition of epinephrine in irrigation fluid, and the intravenous or local administration of tranexamic acid (TXA) have independently been reported to decrease bleeding thereby improving the surgeon's visualization during arthroscopic shoulder procedures. No study has compared the effect of systemic administered TXA, epinephrine added in the irrigation fluid or the combination of both TXA and epinephrine on visual clarity during shoulder arthroscopy with a placebo group. The purpose of this study is to determine if intravenous TXA is a safe alternative to epinephrine delivered by a pressure-controlled pump in improving arthroscopic shoulder visualization during arthroscopic procedures and whether using both TXA and epinephrine together has an additive effect in improving visualization. The design of the study was a double-blinded, randomized controlled trial with four 1:1:1:1 parallel groups conducted at one center. Patients aged ≥18 years undergoing arthroscopic shoulder procedures including rotator cuff repair, arthroscopic biceps tenotomy/tenodesis, distal clavicle excision, subacromial decompression and labral repair by five fellowship-trained upper extremity surgeons were randomized into one of four arms: Pressure pump-controlled regular saline irrigation fluid (control), epinephrine (1ml of 1:1000) mixed in irrigation fluid (EPI), 1g intravenous TXA (TXA), and epinephrine and TXA (EPI/TXA). Visualization was rated on a 4-point Likert scale every 15 minutes with 0 indicating ‘poor’ quality and 3 indicating ‘excellent’ quality. The primary outcome measure was the unweighted mean of these ratings. Secondary outcomes included mean arterial blood pressure (MAP), surgery duration, surgery complexity, and adverse events within the first postoperative week. One hundred and twenty-eight participants with a mean age (± SD) of 56 (± 11) years were randomized. Mean visualization quality for the control, TXA, EPI, and EPI/TXA groups were 2.1 (±0.40), 2.1 (±0.52), 2.6 (±0.37), 2.6 (±0.35), respectively. In a regression model with visual quality as the dependent variable, the presence/absence of EPI was the most significant predictor of visualization quality (R=0.525; p < 0 .001). TXA presence/absence had no effect, and there was no interaction between TXA and EPI. The addition of MAP and surgery duration strengthened the model (R=0.529; p < 0 .001). Increased MAP and surgery duration were both associated with decreased visualization quality. When surgery duration was controlled, surgery complexity was not a significant predictor of visualization quality. No adverse events were recorded in any of the groups. Intravenous administration of TXA is not an effective alternative to epinephrine in the irrigation fluid to improve visualization during routine arthroscopic shoulder surgeries although its application is safe. There is no additional improvement in visualization when TXA is used in combination with epinephrine beyond the effect of epinephrine alone

Adequate visual clarity is paramount to performing arthroscopic shoulder surgery safely, efficiently, and effectively. The addition of epinephrine in irrigation fluid, and the intravenous or local administration of tranexamic acid (TXA) have independently been reported to decrease bleeding thereby improving the surgeon's visualization during arthroscopic shoulder procedures. No study has compared the effect of systemic administered TXA, epinephrine added in the irrigation fluid or the combination of both TXA and epinephrine on visual clarity during shoulder arthroscopy with a placebo group. The purpose of this study is to determine if intravenous TXA is a safe alternative to epinephrine delivered by a pressure-controlled pump in improving arthroscopic shoulder visualization during arthroscopic procedures and whether using both TXA and epinephrine together has an additive effect in improving visualization. The design of the study was a double-blinded, randomized controlled trial with four 1:1:1:1 parallel groups conducted at one center. Patients aged ≥18 years undergoing arthroscopic shoulder procedures including rotator cuff repair, arthroscopic biceps tenotomy/tenodesis, distal clavicle excision, subacromial decompression and labral repair by five fellowship-trained upper extremity surgeons were randomized into one of four arms: Pressure pump-controlled regular saline irrigation fluid (control), epinephrine (1ml of 1:1000) mixed in irrigation fluid (EPI), 1g intravenous TXA (TXA), and epinephrine and TXA (EPI/TXA). Visualization was rated on a 4-point Likert scale every 15 minutes with 0 indicating ‘poor’ quality and 3 indicating ‘excellent’ quality. The primary outcome measure was the unweighted mean of these ratings. Secondary outcomes included mean arterial blood pressure (MAP), surgery duration, surgery complexity, and adverse events within the first postoperative week. One hundred and twenty-eight participants with a mean age (± SD) of 56 (± 11) years were randomized. Mean visualization quality for the control, TXA, EPI, and EPI/TXA groups were 2.1 (±0.40), 2.1 (±0.52), 2.6 (±0.37), 2.6 (±0.35), respectively. In a regression model with visual quality as the dependent variable, the presence/absence of EPI was the most significant predictor of visualization quality (R=0.525; p < 0 .001). TXA presence/absence had no effect, and there was no interaction between TXA and EPI. The addition of MAP and surgery duration strengthened the model (R=0.529; p < 0 .001). Increased MAP and surgery duration were both associated with decreased visualization quality. When surgery duration was controlled, surgery complexity was not a significant predictor of visualization quality. No adverse events were recorded in any of the groups. Intravenous administration of TXA is not an effective alternative to epinephrine in the irrigation fluid to improve visualization during routine arthroscopic shoulder surgeries although its application is safe. There is no additional improvement in visualization when TXA is used in combination with epinephrine beyond the effect of epinephrine alone

Single shot interscalene blocks are an effective analgesic for arthroscopic shoulder surgery. However, patients receiving these blocks are often found to be in significant pain when the block wears off, usually in the late evening or early hours of the morning. Overnight admission is currently routine in our unit, to ensure adequate analgesia can be administered during this period. Recent studies have suggested that adding dexamethasone to the local anaesthetic agent can prolong the duration of the block. We carried out a prospective study to assess whether addition of dexamethasone to brachial plexus blocks could reduce patient's post-operative analgesic demands and allow safe discharge on the same day after surgery. Twenty-six patients undergoing arthroscopic shoulder surgery during a morning theatre list, had ultrasound guided brachial plexus blocks using a mixture of 0.25% bupivacaine 20–30ml with 2–3mg of dexamethasone. All were admitted to the ward afterwards for analgesia and physiotherapy. Pain numerical rating scores (0–10) were recorded at rest in recovery one hour postoperatively by the attending anaesthetist and on active movement of the shoulder joint 24 hours after surgery by the attending physiotherapist. A standardised analgesia regime was prescribed with regular and as required medication, including as required strong opiates. Mean pain scores in recovery were 0.31 and on the morning after surgery were 2.38. Sixteen out of 26 required no further analgesia, with only 3 out of the 10 who did requiring opiates. The use of dexamethasone provides adequate analgesia for a prolonged period for most patients after brachial plexus block for shoulder surgery and does not result in a significant analgesic requirement when the block wears off. This may provide support for avoiding overnight admission in selected patients after arthroscopic shoulder surgery

Since 2004, hospitals and other providers are paid based on the work they do. This in turn is largely based on the “Office of Population Censuses and Surveys” codes (OPCS) and the “Health Care Resource Group” (HRG) codes. Audits have proven that inaccurate coding can lead to significant clinical and financial implication. Through our clinical audit works, we have assessed the current coding practices and examined potential financial shortfalls. Fifty five arthroscopic shoulder procedures were performed over a five-month period. All case notes were retrieved and the clinical correct OPCS and HRG codes were recorded. Those were then compared with the OPCS and HRG code which were documented independently by the clinical coding office. The difference between the predicted costs and the hospital’s actual costs was evaluated. The result was as follows: 81% of the arthroscopic shoulder surgery was inappropriately coded. Due to the fact that the HRG code is largely based on the OPCS code, a significant proportion was wrongly recorded. Secondary to the OPCS code, the HRG was inaccurately coded in 85% of the cases. If all procedures were coded accurately, the revenue generated would be £124,519. Due to inaccuracy of our coding practices, over £50,000 was unaccounted. The real difficulty in the coding practice lies in the ability of choosing the most appropriate code for a particular surgery, and in many cases it requires the user to use multiple codes to correctly categorize the operation. Our current coding practice is extremely poor and as a result the hospital is losing a significant amount of money. A more accurate coding can generate additionally £50,000 in revenue for arthroscopic shoulder surgery alone. The significance of coding errors across all specialties must not be underestimated

Introduction and Objective. Tranexamic acid (TXA) is used across surgical specialties to reduce perioperative bleeding. It has been shown to be effective in trauma, spinal surgery, and lower limb arthroplasty. The aim of this study is to investigate the clinical effectiveness of TXA in all types of shoulder surgery on bleeding and non-bleeding related outcomes. Materials and Methods. This study was registered prospectively on the PROSPERO database (ref: CRD42020185482). A systematic review and meta-analysis of randomised controlled trials (RCTs) investigating intra-operative use of TXA versus placebo in any type of surgery to the shoulder girdle. Electronic databases searched included MEDLINE, EMBASE, PsychINFO, and the Cochrane Library. Risk of bias within studies was assessed using the Cochrane risk of bias v2.0 tool and Jadad score. Certainty of findings were reported using the GRADE approach. The primary outcome was total blood loss. Secondary outcomes included patient reported outcome measures, adverse events, and rate of blood transfusion. Results. Eight RCTs were included in the systematic review and data from 7 of these studies pooled in the meta-analysis. A total of 708 patients were randomized across the studies (406 received TXA, 302 received placebo). Studies included patients undergoing anatomic or reverse total shoulder arthroplasty, open Latarjet surgery, and arthroscopic rotator cuff repair. Pooled analysis demonstrated significant reduction in perioperative bleeding with TXA compared to controls; estimated total blood loss (mean difference [MD], −209.66; 95% CI −389.11 to −30.21; p=0.02), and post-operative blood loss (via drain output) (MD, −84.8ml; 95% CI, −140.04 to −29.56; p=0.003). A mean difference in Visual Analogue Scale (VAS) of 2.93 was noted in favour of TXA (95% CI 0.2 to 5.66; p=0.04). Conclusions. Whilst noting some risk of bias within the studies, TXA was effective in reducing blood loss and pain in shoulder surgery. There may be a benefit of TXA use in both open and arthroscopic shoulder procedures. Larger, low risk of bias, RCTs for specific surgical shoulder procedures are required

Objectives. Indocyanine green (ICG) fluorescence angiography is an emerging technique that can provide detailed anatomical information during surgery. The purpose of this study is to determine whether ICG fluorescence angiography can be used to evaluate the blood flow of the rotator cuff tendon in the clinical setting. Methods. Twenty-six patients were evaluated from October 2016 to December 2017. The participants were categorized into three groups based on their diagnoses: the rotator cuff tear group; normal rotator cuff group; and adhesive capsulitis group. After establishing a posterior standard viewing portal, intravenous administration of ICG at 0.2 mg/kg body weight was performed, and fluorescence images were recorded. The time from injection of the drug to the beginning of enhancement of the observed area was measured. The hypovascular area in the rotator cuff was evaluated, and the ratio of the hypovascular area to the anterolateral area of the rotator cuff tendon was calculated (hypovascular area ratio). Results. ICG fluorescence angiography allowed for visualization of blood flow in the rotator cuff in all groups. The adhesive capsulitis group showed significantly earlier enhancement than the other groups. Furthermore, the adhesive capsulitis group had a significantly smaller hypovascular area ratio than the other groups. Conclusion. ICG fluorescence angiography allowed for evaluation of real-time blood flow of the rotator cuff in arthroscopic shoulder surgery. The techniques of ICG fluorescence angiography are simple and easy to observe, observer reliability is high, and it has utility for evaluating blood flow during surgery. Cite this article: N. Doi, T. Izaki, S. Miyake, T. Shibata, T. Ishimatsu, Y. Shibata, T. Yamamoto. Intraoperative evaluation of blood flow for soft tissues in orthopaedic surgery using indocyanine green fluorescence angiography: A pilot study. Bone Joint Res 2019;8:118–125. DOI: 10.1302/2046-3758.83.BJR-2018-0151.R1

Purpose of the study:. The purpose of the study was to evaluate the possible causes or risk factors for the occurrence of venous thrombotic events (VTE) after shoulder arthroscopy. Methods:. Two cases that occurred in the practice were evaluated for the study. Evaluation of their medical history, procedures and post-operative care was made. The information was evaluated for possible risk factors that could have led to the VTE. Literature reports were also evaluated. All the relevant data (personal and literature) was used to determine risk factors that could help identify high risk patients undergoing arthroscopic shoulder surgery. Results:. Results revealed no intra operative risk factors for the VTE to occur. An underlying genetic predisposition in the one case and a previous history of VTE in the other were indentified as the major risk factors/causes. Literature review revealed that underlying mechanical causes should also be considered as possible risk factors. The rate of VTE occurring after a shoulder arthroscopy (0.6/1000 procedures) is much lower than when compared to knee, hip or spinal surgery. It should be noted however that upper limb VTE's have the highest risk of a pulmonary embolus developing as compared to a lower limb VTE. Conclusion:. Surgeons performing arthroscopic shoulder surgery also run the risk of their patients developing a VTE (upper or lower limb). The attending surgeon should assess and examine their patients preoperatively with as much scrutiny as they would their patients with upcoming knee, hip or spine surgery. Surgeons should have protocols in place to identify high risk patients. These should assess extrinsic as well as intrinsic risk factors. A high index of suspicion should also be maintained in the post-operative period

The incidence of frozen shoulder (FS) as a complication of simple arthroscopic shoulder surgery has yet to be defined. A single-surgeon case series of patients undergoing arthroscopic subacromial decompression (ASD) or ASD with arthroscopic acromioclavicular joint (ACJ) excision was analysed to establish FS rate, this cohort was then compared to a matched group of primary FS patients. Retrospective analysis of 200 consecutive cases was undertaken. All procedures listed, performed and reviewed by the senior author. 96 underwent ASD and 104 underwent ASD and ACJ excision. 6-months follow-up minimum. Incidence of frozen shoulder was 5.21% (ASD) and 5.71% (ASD+ACJ excision). Mean age was 52.3 years (95% CI: 47.4 to 57.2) of the patients that developed FS, compared to 57.2 years (95% CI: 55.2 to 59.2) in the patients who did not and 52 years (95% CI: 50.7 to 53.3) in the primary FS cohort (n=136). 9.1% of post-operative FS were diabetic compared to 17.1% of primary FS. 63.6% were female in the post-operative FS group, 47.1% in the primary FS group. Our results suggest that the risk of FS following simple arthroscopic procedures is 5%, with no increased risk if the ACJ is also excised. This cohort has the same average age as a primary FS. There is a trend toward female sex and diabetes does not increase the risk

The diagnosis and treatment of disorders of the long head of the biceps tendon remains controversial. There is uncertainty as to the role of the long head of biceps and it can be difficult to determine whether the patient's pathology is coming from the biceps or other adjacent structures. In addition, the appropriate type of treatment remains controversial. We retrospectively reviewed the files of the senior author's experience in over 4000 arthroscopic shoulder procedures. We examined cases involving isolated biceps pathology, excluding those patients with rotator cuff tears and labral pathology, involving 92 biceps tenotomies and 103 biceps tenodeses. Our analysis supports the benefit of clinical examination over all types of radiological investigations. The benefits and technique of biceps tenodesis is described including surgical technique. Irritation by PLA interference screw is examined. A paradigm is put forward to help in diagnosis and management of these lesions. Long head of biceps pathology is a significant cause of shoulder pain in association with other shoulder problems and in isolation. Biceps tenodesis and tenotomy is an efficacious way of dealing with this pathology

Alarmins- also referred to as damage associated molecular patterns (DAMPS)- are endogenous molecules mobilized in response to tissue damage known to activate the innate immune system and regulate tissue repair and remodelling. The molecular mechanisms that regulate inflammatory and remodelling pathways in tendinopathy are largely unknown therefore identifying early immune effectors is essential to understanding the pathology. S100A8 and S100A9 are low molecular weight calcium binding proteins primarily released by activated phagocytes in an inflammatory setting and also secreted as a heterodimeric complex that exhibits cytokine like functions. Based on our previous investigations we sought evidence of S100A8/A9 expression in human tendinopathy and thereafter, to explore mechanisms whereby S100 proteins may regulate inflammatory mediators and matrix regulation in human tenocytes. Torn supraspinatus tendon (established pathology) and matched intact subscapularis tendon (representing ‘early pathology’) biopsies were collected from patients undergoing arthroscopic shoulder surgery. Control samples of subscapularis tendon were collected from patients undergoing arthroscopic stabilisation surgery. S100A8/A9 expression was analysed at transcript and protein level using quantitative RT-PCR and immunohistochemistry, respectively. Primary human tenocytes were cultured from hamstring tendon tissue obtained during hamstring tendon ACL reconstruction. The in vitro effect of recombinant human S100 A8/A9 on primary human tenocytes was measured using quantitative RT-PCR and ELISA. Immunohistochemistry of tendinopathic tissues demonstrated the presence of S100 A8/A9 in diseased tissues compared to control tissue. In addition, early pathological diseased tissue indicated greater S100A9 expression compared with established diseased pathology. These findings were reflected by data obtained at transcript level from diseased tissues. Recombinant human S100A8, A9 and A8/A9 complex led to significant increase in expression of inflammatory mediators, including IL-6 in vitro. Further analysis via quantitative RT-PCR demonstrated recombinant S100A8, A9 and A8/A9 complex treatment on tenocytes, in vitro, had no direct effect on the expression of genes involved in matrix remodelling. The presence of S100A8 and S100A9 in early tendinopathic lesions suggests expression is upregulated in response to cellular damage. S100A8 and S100A9 are endogenous ligands of Toll-like receptors (TLRs) and receptor for advanced glycation end products (RAGE). These receptors have known regulatory effects on immune mediated cytokine production. We propose S100A8 and S100A9 as active alarmins in the early stages of tendinopathy and thus targeting of its downstream signalling may offer novel therapeutic approaches in the management of human tendon disorders