Objectives. There are various pin-in-plaster methods for treating fractures of the distal radius. The purpose of this study is to introduce a modified technique of ‘pin in plaster’. Methods. Fifty-four patients with fractures of the distal radius were followed for one year post-operatively. Patients were excluded if they had type B fractures according to AO classification, multiple injuries or pathological fractures, and were treated more than seven days after injury. Range of movement and functional results were evaluated at three and six months and one and two years post-operatively. Radiographic parameters including radial inclination, tilt, and height, were measured pre- and post-operatively. Results. The average radial tilt was 10.6° of volar flexion and radial height was 10.2 mm at the sixth month post-operatively. Three cases of pin tract infection were recorded, all of which were treated successfully with oral antibiotics. There were no cases of pin loosening. A total of 73 patients underwent surgery, and three cases of radial nerve irritation were recorded at the time of cast removal. All radial nerve palsies resolved at the six-month follow-up. There were no cases of median nerve compression or carpal tunnel syndrome, and no cases of tendon injury. Conclusion. Our modified technique is effective to restore anatomic congruity and maintain reduction in fractures of the distal radius. Cite this article: Bone Joint Res 2015;4:176–180

Instability following total hip arthroplasty (THA) is an unfortunately frequent and serious problem that requires thorough evaluation and preoperative planning before surgical intervention. Prevention through optimal index surgery is of great importance, as the management of an unstable THA is challenging even for an experienced joints surgeon. However, even after well-planned surgery, a significant incidence of recurrent instability still exists. Moreover leg-length discrepancy (LLD) after THA can pose a substantial problem for the orthopaedic surgeon. Such discrepancy has been associated with complications including nerve palsy, low back pain, and abnormal gait. Consequently we may use a big femoral head or increase femoral offset (FO) in unstable THA for avoiding LLD. However we do not know the relationship between FO and STT. The objective of this study is to assess hip instability of three different FOs in same patient undergoing THA during an operation. We performed 70 patients who had undergone unilateral THA using CT based navigation system at a single institution for advanced osteoarthoritis from May 2013 to May 2014. We used postero-lateral approach in all patients. After cup and stem implantation, we assessed soft tissue tensioning in THA during operation. Trial necks were categorized into one of three groups: standard femoral offset (sFO), high femoral offset (hFO, +4mm compared to sFO) and extensive high femoral offset (ehFO, +8 mm compared to sFO). We measured distance of lift-off about each of three femoral necks using CT based navigation system and a force gauge with hip flexed at 0 degrees and 30 degrees under a traction of lower extremity. Traction force was 40% of body weight. Forty patients had leg length restored to within +/− 3mm of the contralateral side by post-operative CT analysis. We examined these patients. Traction force was 214±41.1Nm. The distances of lift-off were 8.8±4.5mm (sFO), 7.4±4.1mm (eFO), 5.1±3.9mm (ehFO) with 0 degrees hip flexion and neutral abduction(Abd) / adduction(Add) and neutral internal rotation(IR)/ external rotation(ER). The distance of lift-off were 11.5±5.9mm (sFO),10.5±5.5mm (eFO),9.1±5.9mm (ehFO) with 30 degrees hip flexion and neutral Abd / Add and neutral IR/ER. Significant difference was observed between 0 degrees hip flexion and 30 degrees hip flexion on each FO (p<0.05). On changing the distance of lift-off, hFO to ehFO (2.2±1.6mm)was more stable than sFO to hFO (1.4±1.7mm)with 0degrees hip flexion.(p<0.05). On the other hands, hFO to ehFO (1.4±1.6mm) was more stable than sFO to hFO (1.0±1.3mm) with 30 degrees hip flexion. However, we did not find significant difference (p=0.18). Hip instability was found at 30 degrees hip flexion more than at 0 degrees hip flexion. We found that changing ehFO to sFO can lead to more stability improvement of soft tissue tensioning than sFO to eFO, especially at 0 degrees hip flexion. Whereas In a few cases, the distance of lift-off did not change with increasing femoral offset by 4mm. When you need more stability in THA without LLD, We recommend increasing FO by 8mm

Reverse total shoulder arthroplasty (RTSA) provides a surgical alternative to conventional shoulder arthroplasty in the rotator cuff deficient shoulder. Short term data has shown consistent improvements in pain and function but higher complication and failure rates have also been reported. The aims of this study were to identify the early and late complications of RTSA, to establish the frequency of glenoid notching, and to assess the post-operative functional outcomes. 21 patients (22 joints) treated with RTSA at Glasgow Royal Infirmary (GRI) between April 2006 and October 2010 were retrospectively reviewed. Indications for surgery included cuff tear arthropathy, revision hemiarthroplasty and fracture malunion. Complication rates were obtained by analysis of follow up data from Bluespier and case notes. Glenoid notching was graded from x-rays by multiple observers using the Sirveaux classification. Outcome was assessed using the Oxford Shoulder Score (OSS) and range of motion (ROM). The complication rate associated with RTSA was 14.3%, effecting 3 patients. One dislocation and 1 ulnar nerve palsy occurred within 30 days post-op. A late complication was represented by 1 dislocation, which required revision. Glenoid notching occurred in 71.4% (15 of 21patients), though the majority had a low Sirveaux classification (grade 1 or 2). OSS increased post-operatively and showed a linear improvement with time (R. 2. = 0.81) and ROM increased significantly post-op compared with pre-op (p<0.001). The complication rate associated with RTSA at GRI was lower than that reported in literature and the outcome was good as defined by ROM and OSS. The rate of glenoid notching was higher than literature reports but the significance of this is unclear as notching may not be associated with loosening

Displaced proximal Humeral fractures at Inverclyde Royal Hospital prior to 2008 were previously treated with the antegrade Acumed Polaris Proximal Humeral, predominantly in 2 part fractures. The Philos plate was introduced in 2008, initially being used to treat select non unions, and then expanded to acute fractures. The aim of this study was to assess time to union and complications in the lower volume District General setting comparing to published outcomes. From February 2008 – January 2011, 20 patients were identified. Age range 49–75 (mean 61.2) years, 8 male; 12 female. Left 9, Right 11 Neers 2 part 35%; 3 35%; 4 30%. 16 (80%) were performed in acute fractures with 4 for non-unions, 3 of which were previous polaris nail fixations. 2 patients were lost to follow up after 6/52 but were progressing well. Union was confirmed radiologically and clinically in all but 2 remaining patients (10%), one of whom suffered a significant complication of plate fracture, the second treated with revision for painful non union. 2 other significant complications were observed: transient axillary nerve palsy and deep infection. Both of these patients recovered with delayed union observed in the infection case (52 weeks). Time to union range was 8–52 weeks (mean 17.1). The literature shows a high failure rate of up to 45% with intramedullary nail fixation and limited predominantly to 2 part fractures with risk of damage to the rotator cuff. This study shows a satisfactory union rate using the Philos of 90% with only 3 (15%) requiring further surgery for non-union, plate fracture and infection. 3 and 4 part fractures composed 65% of case load. Early results indicate satisfactory outcomes compared to current published literature

Olecranon fractures account for 20% of elbow fractures. Displaced fractures can be treated by several methods – Tension Band Wiring (TBW), Open Reduction and Internal Fixation with a plate (ORIF) or conservative measures. Studies from UK specialist centres have demonstrated infection rates of up to 15% and metal ware removal rates of up to 80%. In addition studies have shown that conservative treatment provides a good function and pain relief in the elderly and infirm. We aimed to look at all displaced olecranon fractures within our unit over a 4 year period and analyse their case notes for patient features, age stratification, treatment methods, complications and outcomes. We also aimed to compare our results to outcomes in studies published by specialist centres. All olecranon fractures admitted to our unit in calendar years 2007–2010 were identified from our trauma database. Case sheets were analysed for patient's age, co-morbidities, treatment, complications and outcome. X-rays were analysed to classify the fractures and assess outcome of treatment. 71 patients were identified, Male: Female = 33:38. Age range was 7–93, mean was 62.8 years. Treatment used – TBW 42 (59.1%), ORIF 9 (12.7%), and Conservative 20 (28.2%). In the surgical group of 51 patients there were 4 infections (7.8%). There were no incidences of nerve palsy. Metalware was removed in 15 patients (29.4%) – for TBW this was 11/42 (26.25%) and ORIF 4/9 (44.4%) – however the difference was not significant (p=0.06). The conservative group had no complications. In our study group we have demonstrated a lower infection rate and a far lower rate of metal ware removal than published studies. We have a high rate of patients treated conservatively who do well. Further work is being performed into the functional outcome of the whole group

Although most peripheral nerve sheath tumours are benign, some are malignant. The management of malignant tumours usually involves wide excision and is facilitated by knowledge of the diagnosis prior to operation. Imaging modalities, including MRI, give anatomical information but do not distinguish between benign and malignant nerve tumours. We therefore introduced the use of ultrasound guided needle biopsy for suspected nerve tumours to our unit in 2004. Prior to this, excision biopsy was carried out in all cases. We aimed to review our experience with needle biopsy and determine whether it has an effective role in the management of peripheral nerve tumours. All patients who had a needle biopsy for suspected peripheral nerve tumours from January 2004 to December 2011 were identified from our tumour database and clinical notes reviewed. In all cases, biopsy was carried out under ultrasound guidance with local anaesthesia to obtain a 1mm core of tissue. From 25 patients reviewed, 21 (84%) had a successful biopsy. In 3 cases the biopsy was unable to be completed due to pain and in 1 patient insufficient tumour tissue was obtained. 1 patient had a temporary radial nerve palsy following needle biopsy which recovered fully. In biopsies that were successful, 19 (90%) showed a benign peripheral nerve tumour. Following diagnosis of a benign lesion, only 2 patients required to have surgical excision of the tumour due to pain. The remainder were managed non-operatively. In the 2 cases of malignant tumours detected by biopsy, a successful wide surgical excision was performed. Ultrasound guided core needle biopsy appears safe and gives a tissue diagnosis in most cases of suspected peripheral nerve tumours. In malignant cases it facilitates surgical planning, while most benign tumours could be managed non-operatively, therefore avoiding potential complications of nerve surgery

Olecranon fractures account for 20% of elbow fractures. Displaced fractures can be treated by several methods – Tension Band Wiring (TBW), Open Reduction and Internal Fixation with a plate (ORIF) or conservative measures. Studies from UK specialist centres have demonstrated infection rates of up to 15% and metalware removal rates of up to 80%. In addition studies have shown that conservative treatment provides good function and pain relief in the elderly and infirm. To look at all displaced olecranon fractures within our unit (the busiest district general hospital in Scotland) over a 4 year period and analyse for patient features, age stratification, identify treatment methods, complications and outcomes. To compare this to outcomes in studies published by specialist centres. All olecranon fractures admitted to our unit in calendar years 2007–2010 were identified from our trauma database. Case sheets were analysed for patient's age, co-morbidities, treatment, complications & outcome. Xrays were analysed to classify the fractures and assess outcome of treatment. 71 patients were identified, Male: Female = 33:38. Age range was 7–93. Mean 62.8. Treatment used – TBW 42 (59.1%), ORIF 9 (12.7%), Conservative 20 (28.2%). In the surgical group of 51 patients there were 4 infections (7.8%). There were no incidences of nerve palsy. Metalware was removed in 15 patients (29.4%) – for TBW this was 11/42 (26.25) and ORIF 4/9 (44.4%) – however the difference was not significant (p=0.06). The conservative group had no complications. In our study group we have demonstrated a lower infection rate and a far lower rate of metalware removal than published studies.?We have a high rate of patients treated conservatively who do well. Further work is being performed into the functional outcome of the whole group

Aims

We aimed to evaluate the temperature around the nerve root during drilling of the lamina and to determine whether irrigation during drilling can reduce the chance of nerve root injury.

Objectives

To explore the therapeutic potential of combining bone marrow-derived mesenchymal stem cells (BM-MSCs) and hydroxyapatite (HA) granules to treat nonunion of the long bone.

Using the transverse processes of fresh porcine lumbar spines as an experimental model we evaluated the heat generated by a rotating burr of a high-speed drill in cutting the bone. The temperature at the drilled site reached 174°C with a diamond burr and 77°C with a steel burr. With water irrigation at a flow rate of 540 ml/hr an effective reduction in the temperature was achieved whereas irrigation with water at 180 ml/hr was much less effective. There was a significant negative correlation between the thickness of the residual bone and the temperature measured at its undersurface adjacent to the drilling site (p < 0.001).

Our data suggest that tissues neighbouring the drilled bone, especially nerve roots, can be damaged by the heat generated from the tip of a high-speed drill. Nerve-root palsy, one of the most common complications of cervical spinal surgery, may be caused by thermal damage to nerve roots arising in this manner.

Objectives

Acetabular retractors have been implicated in damage to the femoral and obturator nerves during total hip replacement. The aim of this study was to determine the anatomical relationship between retractor placement and these nerves.

We describe a lateral approach to the distal humerus based on initial location of the superficial branches of the radial nerve, the inferior lateral cutaneous nerve of the arm and the posterior cutaneous nerve of the forearm. In 18 upper limbs the superficial branches of the radial nerve were located in the subcutaneous tissue between the triceps and brachioradialis muscles and dissected proximally to their origin from the radial nerve, exposing the shaft of the humerus. The inferior lateral cutaneous nerve of the arm arose from the radial nerve at the lower part of the spiral groove, at a mean of 14.2 cm proximal to the lateral epicondyle. The posterior cutaneous nerve of the forearm arose from the inferior lateral cutaneous nerve at a mean of 6.9 cm (6.0 to 8.1) proximal to the lateral epicondyle and descended vertically along the dorsal aspect of the forearm. The size and constant site of emergence between the triceps and brachioradialis muscles constitute a readily identifiable landmark to explore the radial nerve and expose the humeral shaft.