Aim. Peri-prosthetic joint infection is a serious and expensive complication of joint arthroplasty. Theatre discipline has infection prevention at its core with multiple studies correlating increased door opening with surgical site infection. The WHO, NICE and Philadelphia Consensus all advocate minimal theatre traffic. The Dutch Health Inspectorate consider >5 door openings per procedure excessive. Method. This prospective observational study over five weeks observed theatre door traffic during hip and knee arthroplasty within the eight laminar flow theatres at our institution. Two students attached to the department collected data. Half way through the study notices reminding people not to enter during arthroplasty were placed on the theatre doors. Results. The students observed 59 knees or hip arthroplasty 32 prior to notice's being placed on the theatre doors. The average number of door openings per case was 67 (25–130) prior to intervention and 70 (34–158) after intervention, although opening rates reduced from 1/min to 0.9/min (p=0.053). Reasons for door opening were drawing up medications, blood tests, delivery surgical equipment, general enquiries, staff breaks and “unknown” entries and exits. Conclusions. The rate of door opening was excessive and remained so after reminders were displayed. This deterioration in theatre discipline potentially has a significant negative impact on theatre hygiene and infection control. Individually wrapped components and screws along with the increasing component choice may have played some role in ‘legitimizing’ door opening. It will be challenging to reverse this behavioural trend but must be achieved

Purpose of Study. Discecomy is a common operation peformed for back pain at our hospital. We analysed the theatre register looking at demographic and health data for our patients to shed more light on this cases. Description of Methods. Entries in the spinal unit theatre registers from 2000–2012 were reviewed, and all patients undergoing discectomy for disc herniation recorded analysed regarding demographics and epidemiology. Summary Of Results. A total of 171 patients had operations in our theatres. Of these patients the large majority were females. The age distribution was 45 to 50 years. The lumbar spine was the commonest region operated, especially the lower lumbar spine. We had very low repeat operations from failed surgery or requiring herniation. Conclusion. Surgical registers are an important tool in understanding pathology in the communities we serve. We can track the type of patients treated and then plan appropriate intervention programmes. It also helps to follow-up patients and correlate outcomes, and we can use this data to correlate practices nationally and internationally. NO DISCLOSURES

Aims. As the world continues to fight successive waves of COVID-19 variants, we have seen worldwide infections surpass 100 million. London, UK, has been severely affected throughout the pandemic, and the resulting impact on the NHS has been profound. The aim of this study is to evaluate the impact of COVID-19 on theatre productivity across London’s four major trauma centres (MTCs), and to assess how the changes to normal protocols and working patterns impacted trauma theatre efficiency. Methods. This was a collaborative study across London’s MTCs. A two-month period was selected from 5 March to 5 May 2020. The same two-month period in 2019 was used to provide baseline data for comparison. Demographic information was collected, as well as surgical speciality, procedure, time to surgery, type of anaesthesia, and various time points throughout the patient journey to theatre. Results. In total, 1,243 theatre visits were analyzed as part of the study. Of these, 834 patients presented in 2019 and 409 in 2020. Fewer open reduction and internal fixations were performed in 2020 (33.5% vs 38.2%), and there was an increase in the number of orthoplastic cases in 2020 (8.3% vs 2.2%), both statistically significant results (p < 0.000). There was a statistically significant increase in median time from 2019 to 2020, between sending for a patient and their arrival to the anaesthetic room (29 vs 35 minutes; p = 0.000). Median time between arrival in the anaesthetic room and commencement of anaesthetic increased (7 to 9 minutes; p = 0.104). Conclusion. Changes in working practices necessitated by COVID-19 led to modest delays to all aspects of theatre use, and consequently theatre efficiency. However, the reality is that the major concerns of impact of service did not occur to the levels that were expected. Cite this article: Bone Jt Open 2021;2(10):886–892

Aims. The aim of this study is to determine the effects of the UK lockdown during the COVID-19 pandemic on the orthopaedic admissions, operations, training opportunities, and theatre efficiency in a large district general hospital. Methods. The number of patients referred to the orthopaedic team between 1 April 2020 and 30 April 2020 were collected. Other data collected included patient demographics, number of admissions, number and type of operations performed, and seniority of primary surgeon. Theatre time was collected consisting of anaesthetic time, surgical time, time to leave theatre, and turnaround time. Data were compared to the same period in 2019. Results. There was a significant increase in median age of admitted patients during lockdown (70.5 (interquartile range (IQR) 46.25 to 84) vs 57 (IQR 27 to 79.75); p = 0.017) with a 26% decrease in referrals from 303 to 224 patients and 37% decrease in admissions from 177 to 112 patients, with a significantly higher proportion of hip fracture admissions (33% (n = 37) vs 19% (n = 34); p = 0.011). Paediatric admissions decreased by 72% from 32 to nine patients making up 8% of admissions during lockdown compared to 18.1% the preceding year (p = 0.002) with 66.7% reduction in paediatric operations, from 18 to 6. There was a significant increase in median turnaround time (13 minutes (IQR 12 to 33) vs 60 minutes (IQR 41 to 71); p < 0.001) although there was no significant difference in the anaesthetic time or surgical time. There was a 38% (61 vs 38) decrease in trainee-led operations. Discussion. The lockdown resulted in large decreases in referrals and admissions. Despite this, hip fracture admissions were unaffected and should remain a priority for trauma service planning in future lockdowns. As plans to resume normal elective and trauma services begin, hospitals should focus on minimising theatre turnaround time to maximize theatre efficiency while prioritizing training opportunities. Clinical relevance. Lockdown has resulted in decreases in the trauma burden although hip fractures remain unaffected requiring priority. Theatre turnaround times and training opportunities are affected and should be optimised prior to the resumption of normal services. Cite this article: Bone Joint Open 2020;1-8:494–499

In patients with hand sepsis does bedside debridement compared to operating theatre debridement have similar clinical outcomes, hospital cost and time to discharge in a District Hospital setting in South Africa?. A case series of 130 adult patients presenting to a district level orthopaedic unit over 1 year with hand sepsis requiring debridement. All included patients were debrided at the bedside (i.e. the emergency room, ward, OPD) under wrist or digital block. Patients excluded from the study included patients with necrotising soft tissue infections that required debridement in theatre. A cost analysis was done based on operating theatre (OT) costs saved as defined by Samuel1 et al. If an average theatre time of 45 min is taken then the cost saved per patient is approximately R1500 and approximately R300000 for the patients included in the case series. This excludes ward and other hospital costs related to a longer hospital admission. The mean time to discharge for the included patients was 24 hours. This study suggests that bedside debridement can be a viable and cost effective option for selected cases of hand sepsis that can avoid the high cost and time associated with operating theatre debridement with similar outcomes. This has implications for the future treatment of hand sepsis in resource constrained settings were operating theatre time is not only very expensive but also very scarce

Patients who present with a fractured neck of femur (NOF) have a significant rate of morbidity and mortality. In 2011, the National Institute for Health and Care Excellence (NICE) published clinical guidelines in order to improve these rates. Within this guideline NICE state that surgery should be performed on all NOF fractures within 36 hours. Within ABMU Health board the 1000 Lives Campaign goes a step further and aims to operate on 90% of patients within 24 hours. This study investigates the effect of an additional NOF theatre list on compliance to these national guidelines. This retrospective study was performed between October-December 2013 and December-February 2015. The first period of data collection represents a daily trauma list whilst the second period allowed an additional NOF theatre list. Data was collected using the National Hip Fracture Database and the Trauma Theatre List. The number of patients meeting the national guidelines increased with the presence of an additional theatre list (75.19% v 60%). This represents a reduction to the average time to theatre of 4 hours and 30 minutes (29:47 v 34:17). The additional theatre list improved prioritisation of patients with NOF fractures on the list (29.46% v 13.33% listed first on list) and reduced the rate of cancellations (19.38 v 29.17%). During this study Morriston Hospital did not meet national guidelines, however an additional theatre list did significantly improve average time to theatre. This study highlights the significant impact a dedicated NOF fracture theatre list can have. Winner – Best Paper Award

The aim of this study was to investigate the effect of laboratory-based simulator training on the ability of surgical trainees to perform diagnostic arthroscopy of the knee. A total of 20 junior orthopaedic trainees were randomised to receive either a fixed protocol of arthroscopic simulator training on a bench-top knee simulator or no additional training. Motion analysis was used to assess performance objectively. Each trainee then received traditional instruction and demonstrations of diagnostic arthroscopy of the knee in theatre before performing the procedure under the supervision of a blinded consultant trainer. Their performance was assessed using a procedure-based assessment from the Orthopaedic Competence Assessment Project and a five-point global rating assessment scale. In theatre the simulator-trained group performed significantly better than the untrained group using the Orthopaedic Competence Assessment Project score (p = 0.0007) and assessment by the global rating scale (p = 0.0011), demonstrating the transfer of psychomotor skills from simulator training to arthroscopy in the operating theatre. This has implications for the planning of future training curricula

It costs the NHS £2billion/year to treat 70000 hip fractures. Following hemiarthroplasty a departmental x-ray is standard practice. During 2009 217 hemiarthroplasties were performed in our unit. 210 had postoperative radiographs (148 departmental, 62 in theatre). All patient demographics were considered and hospital costs accounted for. Mean patient age was 83 (55-100) years. Mean theatre times were 120 (51-213) minutes in the departmental x-ray group and 128 (74-187) minutes in the theatre imaging group. Hospital stay was decreased from 12.8 (3-41) days in the departmental x-ray group to 11.8 (3-32) days in the theatre imaging group. Orthopaedic beds cost £136/day. Departmental x-rays give a radiation dose of ∼12mGy and costs £48.30, theatre imaging gives ∼0.26mGy with no additional cost given the radiographers previous allocation to the list. Changing our practice to intra-theatre imaging has improved patient safety, reduced the average inpatient stay and saves our trust approximately £40,000 annually

The WHO surgical safety checklist was introduced at Derriford Hospital in 2009. Evidence of the effect on efficiency has been slow to appear in the literature. Using a standardised, locally modified WHO surgical safety checklist theatre list capacity, start and finish times as well as time between cases was measured in 4 elective orthopaedic theatres. Data from 3 successive years was analysed retrospectively: prior to checklist introduction, during checklist introduction and routine checklist use. Data was analysed using the One-Way ANOVA with post-hoc Tukey test. The number of cases per list showed a statistical difference from Year 1–2 and this increase was sustained in Year 3. The number of delayed starts showed no difference between Year 1&2, followed by a statistically significant decrease in Year 3. The number of late finishes showed a statistical difference from Year 1–2 and this decrease was sustained in Year 3. However, the number of lost minutes between cases showed no difference between Year 1&2, followed by an increase in Year 3. This study demonstrates that pre-list briefings combined with the WHO surgical checklist can improve theatre list capacity and prompt starts, reduce the number of overruns, however fails to improve turnaround time between cases

Aim. This study aimed to define the increased costs incurred by a return to theatre for cases requiring free tissue transfer for surgical treatment of chronic osteomyelitis. We hypothesised that there would be a significantly greater cost when patients required re-exploration of the free flap. Method. We retrospectively analysed the costs of a consecutive series of sixty patient episodes treated at the Bone Infection Unit in Oxford from 2012 to 2015. Treatment involved excision of osteomyelitis with free tissue transfer for immediate soft tissue cover. We compared the costs of uncomplicated cases with those who returned to theatre and determined the profit/loss for the hospital from remuneration through the UK National Health Service Tariff Structure. Results. Hospital income according to UK HRG tariff was compared to the actual cost of treatment and these 60 cases were significantly underfunded overall (P < 0.005). In just 1 case, the cost to the hospital was completely covered by tariff. Six patients (10%) returned to theatre for urgent flap re-exploration with five flaps salvaged and one failed, requiring another free flap reconstruction (1.7%). These six patient episodes had a significantly higher mean cost compared to the uncomplicated cases. The average financial loss to the hospital for patients who did return to theatre was £18992 (range £8103 to £48380) and in those who did not was £9600 (range – £600 to £23717). The case requiring further free tissue transfer cost a total of £74158, £48380 more than the hospital was paid: the most extreme discrepancy. The overall loss for this group of 60 patients was £590766. Conclusions. Surgery for chronic osteomyelitis is multidisciplinary, complex and therefore expensive. However, this study demonstrates that the hospital currently makes a financial loss on almost all patients but especially if flap complications occur. This study has implications for the long term viability of specialist units treating this important disease

Minimally invasive placement of iliosacral screws (SI-screw) is becoming the standard surgical procedure for sacrum fractures. Computer navigation seems to increase screw accuracy and reduce intraoperative radiation compared to conventional radiographic placement. In 2012 an interdisciplinary hybrid operating theatre was installed at the University of Ulm. A floor-based robotic flat panel 3D c-arm (Artis zeego, Siemens, Germany) is linked to a navigation system (BrainLab Curve, BrainLab, Germany). With a single intraoperative 3D scan the whole pelvis can be visualised in CT-like quality. The aim of this study was to analyse the accuracy of SI-screws using this hybrid operating theater. 32 SI-screws (30 patients) were included in this study. Indications ranged from bone tumour resection with consecutive stabilisation to pelvic ring fractures. All screws were implanted using the hybrid operating theatre at the University of Ulm. We analysed the intraoperative 3D scan or postoperative computed tomography and classified the grade of perforation of the screws in the neural foramina and the grade of deviation of the screws to the cranial S1 endplate according to Smith et al. Grade 0 stands for no perforation and a deviation of less than 5 °. Grade 1 implies a perforation of less than 2 mm and a deviation of 5–10°, grade 2 a perforation of 2–4 mm and a deviation of 10–15° and grade 3 a perforation of more than 4 mm and a deviation of more than 15°. All patients were tested for intra- and postoperative neurologic complications and infections. The statistical analysis was executed using Microsoft Excel 2010. 32 SI-screws were implanted in the first 20 months after the hybrid operating theatre had been established in 2012. All 30 patients were included in this study (15 men, 15 women). The mean age was 59 years ±23 (13–95 years). 20 patients received a single screw in S1 (66.7%), 1 patient 2 unilateral screws in S1 and S2 (3.3%), one patient 2 bilateral screws in S1 (3.3%) and 8 patients a single screw stabilising both SI-joints (26.7%). 27 screws showed no perforation (84.4%), 1 screw a grade 1 perforation (3.1%) and 4 screws a grade 2 perforation (12.5%). There was no grade 3 perforation. Furthermore there was no perforation of the neural foramina or the ventral cortex in the axial plane of the SI-screws stabilising one SI-joint (24 screws). Only single SI-screws bridging both SI joints showed a perforation of the neural foramina (37% grade 0, 12.5% grade 1, 50% grade 2, 0% grade 3). In the frontal plane 23 screws (71.9%) showed a deviation of less than 5°. In 5 screws a grade 1 deviation (15.6%) and in 4 screws a grade 2 deviation (12.5%) could be found. There was no grade 3 deviation. There were no infections or neurological complications. The high image quality and large field of view in combination with an advanced navigation system is a great benefit for the surgeon. All SI-screws stabilising only one joint showed completely intraosseous placement. Single SI-screws bridging 2 SI-joints intentionally perforated the neural foramina ventrally in 5 cases because of dysmorphic sacral anatomy. This makes image-guided implantation of SI-screws in a hybrid operating theatre a very safe procedure

Introduction. The concept of a predetermined first patient on the following days trauma list (the golden patient) was introduced to our hospital in April 2009. The golden patient (GP) should already have been seen by an anaesthetist and be ready to be sent for by theatres early. The aim was to improve theatre start times following disappointing results from a previous in-hospital study. It has been shown by others to improve operation start times and could be used to improve trauma services and meet clinical targets more readily. Methods. This prospective study involved the collection of planned trauma lists with the designated GP over November and December 2009. Data was collected from theatre logbooks and included patient demographics, theatre arrival, anaesthetic and operation start times. This was compared with the pre-GP data (January and February 2009). A two sample T-test was used to evaluate statistical significance between groups. Results. Of the 55 planned trauma lists analysed, 42 had a designated GP on it (76%), 37 of which remained first on the actual trauma list (88%). The mean theatre reception arrival time for the pre-GP lists was 09:25 compared to 09:01 for the actual GP lists (P< 0.001). The mean anaesthetic start time for the pre-GP lists was 09:35 compared to 09:09 for the actual GP lists (P< 0.001). The mean operation start time for the pre-GP lists was 10:03 compared to 09:33 for the actual GP lists (P< 0.001). The start times for pre-GP lists compared with lists where no GP was selected were not statistically significant. Conclusion. The introduction of the GP to our trauma lists has made a significant improvement to theatre start times. This simple concept has the potential to increase the productivity of trauma theatres in the UK, leading to improved care of trauma patients

Introduction. Theatre cancellation is unpleasant experience to patient and it is expensive to service provider. There are various causes for cancellation which are avoidable and unavoidable as well. Nationwide, there has been several measures put in place to reduce avoidable theatre cancellations. We describe retrospective review of 158 cancellations and root cause analysis & solutions in relation to the National standard. Material & Method. Retrospective review of all orthopaedic theatre cancellations, both elective and trauma cases, case notes & registry review as made for the period of 1st of August 2007 to 2005 to 31. st. of March 2009 in Bassetlaw Hospital. Data was collected and analysed. Results. Total Number of Operation -3315. Time of cancellation –. Same Day of Operation 157. Day before operation 1. Total Number of cancellation – 158. Total Number of IP – 66. Total Number of Day cases – 92. Almost all cancellations were on same day. All cancellations are in Theatre. Majority are cancellation by the anesthetist in charge. Conclusion. Theatre cancellation is expensive and unpleasant experience both to the patient and the surgeon. From root cause analysis we found avoidable proportion of - 76.6%. No link was found on pre-assessment clinic to avert the cancellations. We recommend Managerial improvement in theatre especially in the following highlight points. Instrument handling and packaging. Early communication of anaesthetist and surgeon involved. Early admission time for surgery. Increase awareness to theatre manager and to follow the performance indices

Introduction. Intracapsular fractures of the femoral neck in young adults are a surgical emergency. Recent literature reviews have questioned whether the timing of surgery reduces the incidence of avascular necrosis, non-union and revision. A study was performed to determine how many patients met a 12-hour target for operative fixation with this injury. Possible sources of delay to theatre were reviewed. Methods. A Fractures Outcomes Research Database was used to identify patients aged 18–64 who were admitted to the Royal Victoria Hospital in Belfast between 1. st. Jan 2008 and 31. st. Dec 2009. Intracapsular fractures of the femoral neck which were treated with a 2-hole dynamic hip screw were included. Time of injury, time of presentation in A&E, time of admission to fracture ward, operation time, demographic data, and the mechanism of injury were extracted from the database. Results. 81 patients were identified who met the inclusion criteria. Median age was 56 years (range 26–64y). 64 injuries were low energy. 16 patients were alcoholics, 34 smoked cigarettes. 31 of 81 operations were performed within 12 hours of the injury. Of the delayed 50 patients, 25 sustained their injury between 1700–2359. 51 of 81 operations were performed on daytime lists (0900–1659), 23 in the evening (1700–2359) and 7 overnight (0000–0859). Median time from injury to presentation at A&E was 1 hour 39 minutes. Time from A&E presentation to ward admission was 4 hours. Time from ward admission to surgery was 8 hours 13 minutes. Conclusions. The time from ward admission to arrival in theatre accounted for the greatest delay, and is modifiable. Injuries which occur in the evening are often operated on the next day. The majority of the patients had low energy injuries, and a minority smoke cigarettes and abuse alcohol. The long-term implications of this delay will require further work

The introduction of direct thrombin inhibitors in arthroplasty surgery has reignited the debate on the risk of wound complications when using chemical thromboprophylaxis. It has been suggested that direct thrombin inhibitors might lead to an increased risk of systemic and operative site bleeding and wound sepsis when compared to low molecular weight heparin. In July 2009, departmental thromboprophylaxis policy for patients undergoing hip and knee replacement surgery (including revision) was changed from subcutaneous enoxaparin for the duration of inpatient stay to dabigatran for 10 days (knees) or 28 days (hips) unless contraindicated. In the 2 years prior to policy change, 1091 patients underwent hip or knee arthroplasty (Group A), with1150 patients undergoing the same procedures in the 2 years following July 2009 (Group B). A minority of patients were already on warfarin (2% in group 1, 3% in group 2). This study presents a retrospective analysis of all patients who returned to theatre within 30 days of joint replacement surgery to assess whether the change in unit policy caused any discernible increase in bleeding-related complications. In group A, 20/1091 patients (1.8%) returned to theatre within 30 days. 9 were for reasons unrelated to thromboprophylaxis (mainly dislocated hips), 4 for gastrointestinal bleeding and 7 for wound complications (haematoma, wound breakdown, or infection). In group B, 22/1150 patients (1.9%) returned to theatre within 30 days. 13 were for unrelated reasons, 4 for gastrointestinal bleeding, and 5 for wound complications. One patient with a wound complication was on warfarin and therefore did not receive dabigatran. The lower wound complication rate in group B was not statistically different. This study, in a large heterogeneous group of patients, suggests that a change from enoxaparin to dabigatran does not increase the incidence of local or systemic complications of sufficient severity to warrant return to theatre

The introduction of direct thrombin inhibitors in arthroplasty surgery has reignited the debate on the risk of wound complications when using chemical thromboprophylaxis. It has been suggested that direct thrombin inhibitors might lead to an increased risk of systemic and operative site bleeding and wound sepsis when compared to low molecular weight heparin. In July 2009, departmental thromboprophylaxis policy for patients undergoing hip and knee replacement surgery (including revision) was changed from subcutaneous enoxaparin for the duration of inpatient stay to dabigatran for 10 days (knees) or 28 days (hips) unless contraindidated. In the 2 years prior to policy change, 1091 patients underwent hip or knee arthroplasty (Group 1), with1150 patients undergoing the same procedures in the 2 years following July 2009 (Group 2). A minority of patients were already on warfarin (2% in group 1, 3% in group 2). This study presents a retrospective analysis of all patients who returned to theatre within 30 days of joint replacement surgery to assess whether the change in unit policy caused any discernible increase in bleeding-related complications. In group 1, 23/1091 patients (2.1%) returned to theatre within 30 days. 8 were for reasons unrelated to thromboprophylaxis (mainly dislocated hips), 5 for gastrointestinal bleeding (mainly upper GI endoscopy) and 10 for wound complications (haematoma, wound breakdown, or washout of early infection). In group 2, 22 / 1150 patients (1.9%) returned to theatre within 30 days. 12 were for unrelated reasons, 5 for GI bleeding, and 5 for wound complications. The lower return to theatre rate in the second group was not statistically different. This study, in a large heterogeneous group of patients, suggests that a change from enoxaparin to dabigatran does not increase the incidence of early infection, or the risk of bleeding at the operative site or the gastrointestinal tract

Recent reports observe that orthopaedic surgeons lack essential knowledge about ionising radiation. We aim to demonstrate perceived use of image-intensifiers by surgeons and awareness of radiation doses used during fractured neck of femur surgery. Surgeons at a regional trauma centre were sent an online questionnaire. They were shown two neck of femur fracture radiographs and asked the total number of images they would use to reduce and fix the fracture with a dynamic-hip-screw / inter-medullary nail respectively. They were asked the maximum safe radiation dose, and that of ‘hip pining’ compared to CXR as outlined by the Ionising Radiation Regulations 1999. For a DHS, consultants and registrars estimate their image use similarly. For IM nailing, consultants estimated higher image use than registrars, and double the number of X-rays taken for IM nailing compared to DHS. Knowledge levels regarding radiation doses during orthopaedic hip procedures are very low. There is an expectation that more images will be used in IM nailing procedures. We plan to educate orthopaedic surgeons about radiation dose and safety. Correlating our findings with actual use of image in theatre when performing hip fracture surgery would extend the use of this study

Objective. To investigate the effect of lab-based simulator training, on the ability of surgical trainees to perform diagnostic knee arthroscopy. Method. 20 orthopaedic SHOs with minimal arthroscopic experience were randomised to 2 groups. 10 received a fixed protocol of simulator based arthroscopic skills training using a bench-top knee model. Learning curves were clearly demonstrated using motion analysis equipment to monitor performance. All 20 then spent an operating list with a blinded consultant trainer. They received instruction and demonstration of diagnostic knee arthroscopy before performing the procedure independently. Their performance was assessed using the intra-operative section of the Orthopaedic Competence Assessment Project (OCAP) procedure based assessment (PBA) protocol for diagnostic arthroscopy. Performance was further quantified with a ten point global rating assessment scale. Results. Motion analysis demonstrated objective and significant improvement in performance during simulator training. In theatre the simulator-trained group performed significantly better than the untrained group. The simulator trainees were scored as OCAP competent on more than 70% of occasions, compared to less than 15% for the untrained group (p<0.01). The mean global rating score of the trained group was 24.5 out of 45 compared with 12 for the untrained group (p<0.01). Conclusion. Learning curves showing significantly improved performance at simulated diagnostic knee arthroscopy are clearly demonstrated using motion analysis assessment. Arthroscopic simulator training led to subsequent significant improvement in operating theatre performance as determined by OCAP and a global rating assessment scale. This demonstrates a degree of transfer validity from lab based arthroscopic simulator training using motion analysis assessment to the operating theatre. In addition OCAP PBAs appear to provide a useful framework for in theatre assessment; however questions are raised about the need for more objective assessment tools in order to truly distinguish between trainees varying levels of competence

Introduction. Recent literature has shown increasing interest in analysing return to theatre (RTT) as a quality indicator across different surgical specialities. The aim of this study is to express “RTT at 90 days” as a useful predictor in identifying complications following primary total knee replacement (TKR). Methods. Patients who had been to theatre within 90 days of primary TKR were identified and their clinical notes were reviewed. Patients’ co morbidities, surgeon's grade, details of revision procedures and their final outcome were analysed. Results. Between 2010 and 2012 a total of 1388 primary TKR were performed. Eleven patients, 11/1388 (0.79%) RTT within 90 days, mean age was 71 years (51 to 85), mean body mass index (BMI) was 30.7 (21 to 45). Out of these 11 patients, six had Manipulation Under Anaesthesia (MUA) for stiffness, two had wound exploration and primary closure and three patients underwent revision arthroplasty following failed salvage procedures. Conclusion. Using RTT as a quality marker, it is possible to assess performance of surgeons and institutions much quicker than with joint registry. Our results showed that RTT at 90 days for TKR in our institution is significantly lower than national average (0.79% versus 1.8%)

The introduction of direct thrombin inhibitors in arthroplasty surgery has reignited the debate on the risk of wound complications when using chemical thromboprophylaxis. It has been suggested that direct thrombin inhibitors might lead to an increased risk of systemic and operative site bleeding and wound sepsis when compared to low molecular weight heparin. In July 2009, departmental thromboprophylaxis policy for patients undergoing hip and knee replacement surgery (including revision) was changed from subcutaneous enoxaparin for the duration of inpatient stay to dabigatran for 10 days (knees) or 28 days (hips) unless contraindicated. In the 2 years prior to policy change, 1091 patients underwent hip or knee arthroplasty (Group A), with 1150 patients undergoing the same procedures in the 2 years following July 2009 (Group B). A minority of patients were already on warfarin (2% in group 1, 3% in group 2). This study presents a retrospective analysis of all patients who returned to theatre within 30 days of joint replacement surgery to assess whether the change in unit policy caused any discernible increase in bleeding-related complications. In group A, 20 / 1091 patients (1.8%) returned to theatre within 30 days. 9 were for reasons unrelated to thromboprophylaxis (mainly dislocated hips), 4 for gastrointestinal bleeding and 7 for wound complications (haematoma, wound breakdown, or infection). In group B, 22 / 1150 patients (1.9%) returned to theatre within 30 days. 13 were for unrelated reasons, 4 for gastrointestinal bleeding, and 5 for wound complications. One patient with a wound complication was on warfarin and therefore did not receive dabigatran. The lower wound complication rate in group B was not statistically different. This study, in a large heterogeneous group of patients, suggests that a change from enoxaparin to dabigatran does not increase the incidence of early infection, or the risk of bleeding at the operative site or the gastrointestinal tract