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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_1 | Pages 45 - 45
1 Jan 2013
Kulshreshtha R Jariwala A Bansal N Smeaton J Wigderowitz C
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Introduction. Ulnar nerve entrapment is the second most common nerve entrapment syndrome of the upper extremity. Despite this, only a few studies have assessed the outcome of ulnar nerve decompression. The objectives of the study were to review the pre-operative symptoms, nerve conduction studies, the co-morbidities, operative procedures undertaken and the post-operative outcomes; and investigate and ascertain prognostic factors particularly in cases of persistence of symptoms after the surgery. Methods. We reviewed the case notes of ulnar nerve decompressions surgery performed over a period of six year period. A structured proforma was created to document the demographics, patient complaints, method of decompression, per-operative findings and symptom status at the last follow up. Outcome grading was recorded as completely relieved, improved, unchanged or worse. Analysis of data was carried out using the SPSS software (Version 16.0; Illinois). The significance level was set at 5%. Results. 136 ulnar nerve decompressions formed the study group. Minimum follow-up was three months. Numbness and paresthesia in ulnar distribution were the two most common presenting symptoms (96%). The cause of compression was identified as idiopathic in 58.2%; flexor carpi ulnaris aponeurosis in 36.7% and Arcade of Stuthers in 5.1% extremities. The outcome was satisfactory in 85.2% of patients. No obvious association was demonstrated between the outcome of surgery and duration of symptoms, presence of co-morbidities or the type of surgery performed. Interestingly out of 12 patients who got worse or had no improvement, nine (75%) had either normal nerve conduction studies or none done pre-operatively. Conclusion. This is the largest review of outcomes after ulnar nerve decompressions at elbow. The study showed that good results (85.2%) of ulnar nerve decompression at elbow in majority of patients regardless of level of surgeon's experience or procedure undertaken


Bone & Joint Open
Vol. 6, Issue 1 | Pages 62 - 73
11 Jan 2025
Mc Colgan R Boland F Sheridan GA Colgan G Bose D Eastwood DM Dalton DM

Aims. The aim of this study was to explore differences in operative autonomy by trainee gender during orthopaedic training in Ireland and the UK, and to explore differences in operative autonomy by trainee gender with regard to training year, case complexity, index procedures, and speciality area. Methods. This retrospective cohort study examined all operations recorded by orthopaedic trainees in Ireland and the UK between July 2012 and July 2022. The primary outcome was operative autonomy, which was defined as the trainee performing the case without the supervising trainer scrubbed. Results. A total of 3,533,223 operations were included for analysis. Overall, male trainees performed 5% more operations with autonomy than female trainees (30.5% vs 25.5%; 95% CI 4.85 to 5.09). Female trainees assisted for 3% more operations (35% vs 32%; 95% CI 2.91 to 3.17) and performed 2% more operations with a supervising trainer scrubbed (39% vs 37%; 95% CI 1.79 to 2.06). Male trainees performed more operations with autonomy than female trainees in every year of training, in each category of case complexity, for each orthopaedic speciality area, and for every index procedure except nerve decompression. When adjusting for year, training level, case complexity, speciality area, and urgency, male trainees had 145% (95% CI 2.18 to 2.76) increased odds of performing an operation with autonomy and 35% (95% CI 1.25 to 1.45) increased odds of performing an operation under trainer supervision, than assisting, compared to female trainees. Conclusion. Male trainees perform more operations with autonomy during orthopaedic training than female trainees. Female orthopaedic trainees assist for a greater proportion of cases than their male counterparts. A comprehensive review of trauma and orthopaedic training is needed to identify any additional differences in training opportunities between female and male trainees, particularly with regard to progression through training. Cite this article: Bone Jt Open 2025;6(1):62–73


The Journal of Bone & Joint Surgery British Volume
Vol. 60-B, Issue 2 | Pages 195 - 196
1 May 1978
Lewis M


Orthopaedic Proceedings
Vol. 105-B, Issue SUPP_15 | Pages 6 - 6
7 Nov 2023
Jeffrey H Samuel T Hayter E Lee G Little M Hardman J Anakwe R
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We undertook this study to investigate the outcomes of surgical treatment for acute carpal tunnel syndrome following our protocol for concurrent nerve decompression and skeletal stabilization for bony wrist trauma to be undertaken within 48-hours. We identified all patients treated at our trauma centre following this protocol between 1 January 2014 and 31 December 2019. All patients were clinically reviewed at least 12 months following surgery and assessed using the Brief Michigan Hand Outcomes Questionnaire (bMHQ), the Boston Carpal Tunnel Questionnaire (BCTQ) and sensory assessment with Semmes-Weinstein monofilament testing. The study group was made up of 35 patients. Thirty-three patients were treated within 36-hours. Patients treated with our unit protocol for early surgery comprising nerve decompression and bony stabilization within 36-hours, report excellent outcomes at medium term follow up. We propose that nerve decompression and bony surgical stabilization should be undertaken as soon as practically possible once the diagnosis is made. This is emergent treatment to protect and preserve nerve function. In our experience, the vast majority of patients were treated within 24-hours


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_20 | Pages 5 - 5
1 Apr 2013
Shelton J Bansal N Kulshreshtha R Wigderowitz C Jariwala A
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Introduction. Only a few studies have assessed the outcome of ulnar nerve decompression, most comparing various forms of decompression. A review of the case notes of patients undergone ulnar nerve decompressions was undertaken looking at the pre-op symptoms, nerve conduction studies, the co-morbidities, operative procedures and the post-operative outcomes. Material/methods. We reviewed the case notes of ulnar nerve decompressions surgery performed over a period of six year period. Outcome grading was recorded as completely relieved, improved, unchanged or worse. The significance level was set at 5%. Results. A total of 136 ulnar nerve decompressions formed the study group. Numbness and paraesthesia in ulnar distribution were the two most common presenting symptoms (96%). Majority (68%) had symptoms for over a year before surgery. Simple decompression was done in 110 extremities and rest of the cases required additional anterior subcutaneous transposition. The cause of compression was identified as idiopathic in 58.2%; flexor carpi ulnaris aponeurosis in 36.7% and Arcade of Struthers in 5.1% extremities. The outcome was satisfactory in 85.2% of patients. No obvious association was demonstrated between the outcome of surgery and duration of symptoms, presence of co-morbidities or the type of surgery performed. Interestingly out of 12 patients who got worse or had no improvement, nine (75%) had either normal nerve conduction studies or none done pre-operatively. Conclusions. This is the largest review of outcomes after ulnar nerve decompressions at elbow. The study showed that good results (85.2%) in majority of patients regardless of level of surgeon's experience or procedure undertaken


Bone & Joint Open
Vol. 1, Issue 10 | Pages 645 - 652
19 Oct 2020
Sheridan GA Hughes AJ Quinlan JF Sheehan E O'Byrne JM

Aims. We aim to objectively assess the impact of COVID-19 on mean total operative cases for all indicative procedures (as outlined by the Joint Committee on Surgical Training (JCST)) experienced by orthopaedic trainees in the deanery of the Republic of Ireland. Subjective experiences were reported for each trainee using questionnaires. Methods. During the first four weeks of the nationwide lockdown due to COVID-19, the objective impact of the pandemic on each trainee’s surgical caseload exposure was assessed using data from individual trainee logbook profiles in the deanery of the Republic of Ireland. Independent predictor variables included the trainee grade (ST 3 to 8), the individual trainee, the unit that the logbook was reported from, and the year in which the logbook was recorded. We used the analysis of variance (ANOVA) test to assess for any statistically significant predictor variables. The subjective experience of each trainee was captured using an electronic questionnaire. Results. The mean number of total procedures per trainee over four weeks was 36.8 (7 to 99; standard deviation (SD) 19.67) in 2018, 40.6 (6 to 81; SD 17.90) in 2019, and 18.3 (3 to 65; SD 11.70) during the pandemic of 2020 (p = 0.043). Significant reductions were noted for all elective indicative procedures, including arthroplasty (p = 0.019), osteotomy (p = 0.045), nerve decompression (p = 0.024) and arthroscopy (p = 0.024). In contrast, none of the nine indicative procedures for trauma were reduced. There was a significant inter-unit difference in the mean number of total cases (p = 0.029) and indicative cases (p = 0.0005) per trainee. We noted that 7.69% (n = 3) of trainees contracted COVID-19. Conclusion. During the COVID-19 pandemic, the mean number of operative cases per trainee has been significantly reduced for four of the 13 indicative procedures, as outlined by the JCST. Reassignment of trainees to high-volume institutions in the future may be a plausible approach to mitigate significant training deficits in those trainees worst impacted by the reduction in operative exposure


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_III | Pages 493 - 494
1 Sep 2009
Barua N Plaha P Adams W Sudhakar N Germon T
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Aim: To determine the distribution of pain which can be most reliably attributed to individual lumbo-sacral nerve root compression. Introduction: Patients are selected for nerve root decompression based on a correlation between symptoms, signs and imaging findings. However, the belief that a given pain may be attributable to a specific nerve root varies widely between surgeons. Some will only consider decompressing a nerve root in the presence of pain radiating in a classical dermatomal distribution whilst others consider nerve root compression to be a cause of back, buttock or thigh pain. We sought to determine the distribution of pain which significantly improves following decompression of lumbo-sacral nerve roots. Methods: Data from consecutive patients undergoing lumbo-sacral nerve root decompression between 2002 and 2005 was prospectively analysed. Inclusion criteria were:. uni- or bilateral single level nerve root decompression. Three month post-operative visual analogue pain scores of less than 2 (0 = no pain, 10 = worst pain). For individual nerve roots the distribution of pain described on post-operative pain drawings was sub-tracted from that described on pre-operative pain drawings. This produced a composite pain drawing demonstrating the distribution of pain most reliably improved by decompressing a particular nerve root. Results: 52 cases fulfilled the inclusion criteria. There were 6 L4, 36 L5 and 17 S1 nerve root decompressions. The distribution of dramatically improved pain following nerve root decompression did not follow the classic dermatomal patterns described in standard text books. Conclusions:. Pain as a consequence of lumbo-sacral nerve root compression does not appear to be restricted to classical dermatomal distributions. Lumbo-sacral nerve root compression may be a significant cause of back pain. In order to decide who is likely to benefit from lumbo-sacral nerve root decompression further characterisation of the pain distribution attributable to lumbosacral nerve root compression is required


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 80 - 80
1 Mar 2009
Waseem M Saldanha K Chaudhry S Jharaja H
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Aim: Aim of this study is to determine if cubital tunnel view radiograph of the elbow is useful in the investigation and treatment of Ulnar nerve entrapment at the elbow. Patients and Methods: 28 patients presenting with symptoms suggestive of ulnar nerve entrapment at the elbow were prospectively studied. Detailed history and clinical examination was elicited in each patient and classified according to McGowan’s classification. Diagnosis of ulnar nerve entrapment at the elbow was confirmed by nerve conduction studies. Cubital tunnel view radiographs were taken and evaluated for any evidence of bony encroachment of the ulnar nerve bed in the cubital tunnel. Those patients with normal cubital tunnel view radiograph underwent simple ulnar nerve decompression where as those with significant bony encroachment of ulnar nerve bed underwent anterior transposition of the ulnar nerve. The results of surgery were assessed at follow up using the Wilson and Krout criteria. The difference in results in two groups was statistically analyzed by applying student ‘t’ test. Results: There were 20 patients (male=14, female 6) in the simple ulnar nerve decompression group with a mean age of 52 yrs (range 32 to 61 yrs) and 8 patients (male=6, female=2) in anterior transposition group with a mean age 59 yrs (range 45 to 69 yrs). Mean follow up was 25months (range 9 months to 32 months). According to McGowan’s classification there were 5 grade I, 9 grade II and 6 grade III patients in simple decompression group where as there were none grade I, 3 grade II and 5 grade III in anterior transposition group. All patients had neurophysiological evidence of ulnar nerve entrapment in pre-operative nerve conduction study. Wilson and Krout grading at final follow up showed 15 good, 4 fair and 1 poor result in simple decompression group and 5 good, 2 fair and 1 poor result anterior transposition group. There was no statistically significant difference between the two groups (p value < 0.001). Conclusion: Cubical tunnel view radiographs are valuable in the management of ulnar nerve entrapment at the elbow. Patients with normal radiograph can be treated by simple nerve decompression


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_2 | Pages 113 - 113
1 Jan 2017
Boriani F Granchi D Roatti G Merlini L Sabattini T Baldini N
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The postoperative course of median nerve decompression in the carpal tunnel syndrome may sometimes be complicated by postoperative pain, paresthesias, and other unpleasant symptoms, or be characterized by a slow recovery of nerve function due to prolonged preoperative injury causing extensive nerve damage. The aim of this study is to explore any possible effects of alpha lipoic acid (ALA) in the postoperative period after surgical decompression of the median nerve at the wrist. Patients were enrolled with proven carpal tunnel syndrome and randomly assigned into one of two groups: Group A: surgical decompression of the median nerve followed by ALA for 40 days. Group P: surgical decompression followed by placebo. The primary endpoint of the study was nerve conduction velocity at 3 months post surgery, Other endpoints were static 2 point discrimination, the Boston score for hand function, pillar pain and use of pain killers beyond the second postoperative day. ALA did not show to significantly improve nerve conduction velocity or Boston score. However, a statistically significant reduction in the postoperative incidence of pillar pain was noted in Group A. In addition, static 2 point discrimination showed to be significantly improved by ALA. Administration of ALA following decompression of the median nerve for carpal tunnel release is effective on nerve recovery, although this is not detectable through nerve conduction studies but in terms of accelerated and improved static two-point discrimination. The use of ALA as a supplementation for nerve recovery after surgical decompression may be extended to all types of compression syndromes or conditions where a nerve is freed from a mechanical insult. Furthermore, ALA limits post-decompression pain, including late pericicatricial pain at the base of the palm, the so called pillar pain, which seems to be associated with a reversible damage to the superfical sensitive small nerve fibers. In conclusion postoperative administration of ALA for 40 days post-median nerve decompression was positively associated with nerve recovery, induced a lower incidence of postoperative pillar pain and was associated with a more rapid improvement of static two-point discrimination. This treatment is well tolerated and associated with high levels of satisfaction and compliance, supporting its value as a standard postoperative supplementation after carpal tunnel decompression


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_X | Pages 61 - 61
1 Apr 2012
Dias A Jeyaretna D Hobart J Germon T
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To quantify the duration of symptoms and the treatment modalities employed prior to surgery in patients undergoing lumbar and cervical nerve root decompression and to assess the evidence of these non-surgical treatments. Pre- and post operative questionnaires completed by consecutive patients. 514 people undergoing consecutive cervical or lumbar nerve root decompression between March 2007 to October 2009. Pre-operative severity and duration of pain, functional limitations and treatment received. Post-operative pain severity and change in functional limitations. Evidence in the literature for efficacy of treatment modalities employed. Mean duration of pre-operative symptoms was 23 months (range 1 to 360). 91% took regular medication for pain, 83% received one or more physical therapy, 24% received injection therapy. There was improvement in both pain scores (mean pre-op 7.3; post-op 3.0) and 78% of the commonly reported functional limitations, walking, sleep and work. We found extremely limited evidence to support the other treatment modalities employed. Patients spend many months unnecessarily in pain, consuming considerable resources and may suffer significant side effects from ineffective treatment for pain emanating from nerve root compression. Surgical nerve root decompression relieves pain and restores function. Despite this a specialist opinion is often delayed. Early referral for specialist opinion is almost certainly more humane, cost effective, and time-limits the journey on the not so magic roundabout


The Journal of Bone & Joint Surgery British Volume
Vol. 89-B, Issue 5 | Pages 620 - 626
1 May 2007
Nath RK Paizi M

Residual muscle weakness in obstetric brachial plexus palsy results in soft-tissue contractures which limit the functional range of movement and lead to progressive glenoid dysplasia and joint instability. We describe the results of surgical treatment in 98 patients (mean age 2.5 years, 0.5 to 9.0) for the correction of active abduction of the shoulder. The patients underwent transfer of the latissimus dorsi and teres major muscles, release of contractures of subscapularis pectoralis major and minor, and axillary nerve decompression and neurolysis (the modified Quad procedure). The transferred muscles were sutured to the teres minor muscle, not to a point of bony insertion. The mean pre-operative active abduction was 45° (20° to 90°). At a mean follow-up of 4.8 years (2.0 to 8.7), the mean active abduction was 162° (100° to 180°) while 77 (78.6%) of the patients had active abduction of 160° or more. No decline in abduction was noted among the 29 patients (29.6%) followed up for six years or more. This procedure involving release of the contracted internal rotators of the shoulder combined with decompression and neurolysis of the axillary nerve greatly improves active abduction in young patients with muscle imbalance secondary to obstetric brachial plexus palsy


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_7 | Pages 26 - 26
1 May 2016
Kang H Lee J Bae K
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Thermal injury to the radial nerve caused by cement leakage is a rare complication after revision elbow arthroplasty. Several reports have described nerve palsy caused by cement leakage after hip arthroplasty. However, little information is available regarding whether radial nerve injury due to cement leakage after humeral stem revision will recover. In a recent study, radial nerve palsy occurred in 2 of 7 patients who had thermal injury from leaked cement during humeral component revisions. These patients did not regain function of the radial nerve after observation. We present a case of functional recovery from a radial nerve palsy caused by cement leakage after immediate nerve decompression in revision elbow arthroplasty[Fig. 1.2]


Bone & Joint Open
Vol. 4, Issue 2 | Pages 110 - 119
21 Feb 2023
Macken AA Prkić A van Oost I Spekenbrink-Spooren A The B Eygendaal D

Aims

The aim of this study is to report the implant survival and factors associated with revision of total elbow arthroplasty (TEA) using data from the Dutch national registry.

Methods

All TEAs recorded in the Dutch national registry between 2014 and 2020 were included. The Kaplan-Meier method was used for survival analysis, and a logistic regression model was used to assess the factors associated with revision.


The Bone & Joint Journal
Vol. 106-B, Issue 11 | Pages 1327 - 1332
1 Nov 2024
Ameztoy Gallego J Diez Sanchez B Vaquero-Picado A Antuña S Barco R

Aims

In patients with a failed radial head arthroplasty (RHA), simple removal of the implant is an option. However, there is little information in the literature about the outcome of this procedure. The aim of this study was to review the mid-term clinical and radiological results, and the rate of complications and removal of the implant, in patients whose initial RHA was undertaken acutely for trauma involving the elbow.

Methods

A total of 11 patients in whom removal of a RHA without reimplantation was undertaken as a revision procedure were reviewed at a mean follow-up of 8.4 years (6 to 11). The range of motion (ROM) and stability of the elbow were recorded. Pain was assessed using a visual analogue scale (VAS). The functional outcome was assessed using the Mayo Elbow Performance Score (MEPS), the Oxford Elbow Score (OES), and the Disabilities of the Arm, Shoulder and Hand questionnaire (DASH). Radiological examination included the assessment of heterotopic ossification (HO), implant loosening, capitellar erosion, overlengthening, and osteoarthritis. Complications and the rate of further surgery were also recorded.


The Bone & Joint Journal
Vol. 106-B, Issue 3 | Pages 293 - 302
1 Mar 2024
Vogt B Lueckingsmeier M Gosheger G Laufer A Toporowski G Antfang C Roedl R Frommer A

Aims

As an alternative to external fixators, intramedullary lengthening nails (ILNs) can be employed for distraction osteogenesis. While previous studies have demonstrated that typical complications of external devices, such as soft-tissue tethering, and pin site infection can be avoided with ILNs, there is a lack of studies that exclusively investigated tibial distraction osteogenesis with motorized ILNs inserted via an antegrade approach.

Methods

A total of 58 patients (median age 17 years (interquartile range (IQR) 15 to 21)) treated by unilateral tibial distraction osteogenesis for a median leg length discrepancy of 41 mm (IQR 34 to 53), and nine patients with disproportionate short stature treated by bilateral simultaneous tibial distraction osteogenesis, with magnetically controlled motorized ILNs inserted via an antegrade approach, were retrospectively analyzed. The median follow-up was 37 months (IQR 30 to 51). Outcome measurements were accuracy, precision, reliability, bone healing, complications, and patient-reported outcome assessed by the Limb Deformity-Scoliosis Research Society Score (LD-SRS-30).


Bone & Joint 360
Vol. 11, Issue 6 | Pages 22 - 26
1 Dec 2022

The December 2022 Foot & Ankle Roundup360 looks at: Evans calcaneal osteotomy and multiplanar correction in flat foot deformity; Inflammatory biomarkers in tibialis posterior tendon dysfunction; Takedown of ankle fusions and conversion to total ankle arthroplasty; Surgical incision closure with three different materials; Absorbable sutures are not inferior to nonabsorbable sutures for tendo Achilles repair; Zadek’s osteotomy is a reliable technique for treating Haglund’s syndrome; How to best assess patient limitations after acute Achilles tendon injury; Advances in the management of infected nonunion of the foot and ankle.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_IV | Pages 103 - 103
1 Mar 2012
McFadyen I Curwen C Field J
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The aim of this study is to compare functional, clinical and radiological outcomes in K-wire fixation versus volar fixed-angle plate fixation in unstable, dorsally angulated distal radius fractures. Fifty-four adult patients with an isolated closed, unilateral, unstable, distal radius fracture were recruited to participate in the study. Only dorsally displaced fractures with no articular comminution were included. Patients were randomised to have their fracture treated with either closed reduction and K-wire fixation (3 wires) or fixed-angle volar plating. Both groups were immobilised in a below elbow cast for six weeks. The wires removed in the outpatients at six weeks and both groups were referred for physiotherapy. Independent clinical review was performed at three and six months post injury. Functional scoring was performed using the DASH and Gartland and Werley scoring systems. Radiographs were evaluated by an independent orthopaedic surgeon. Twenty-five patients were treated with a plate and twenty-nine with wires. There were no complications in the plate group. There were 9 complications in the K-wire group with 3 patients requiring a second operation (1 corrective osteotomy for malunion, 1 median nerve decompression and 1 retrieval of a migrated wire). The remaining complications included: 5 pin site infections (3 treated with early pin removal and 2 with oral antibiotics only), and 1 superficial radial nerve palsy. There were no tendon ruptures. Both groups scored satisfactory functional results with no statistical difference. There was a statistically significant difference in the radiological outcomes with the plate group achieving better results. We conclude that in unstable dorsally angulated distal radius fractures volar fixed-angle plate fixation is able to achieve comparable functional results to K-wire fixation with better radiological results and fewer complications. This has resulted in a change in our clinical practice


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_III | Pages 349 - 349
1 Jul 2011
Psychoyios VN Kormpakis I Intzirtzis P Thoma S Stathakopoulos I
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Simultaneous compression of the median and ulnar nerve at the elbow is rather uncommon. The aim of this study was to describe 10 such cases which have been treated in our unit. The patients presented with a combination of ulnar neuritis symptoms at the elbow with a pronator syndrome. Five patients were female and 5 male with an average age of 33 years. All patients were manual workers. Regarding the cubital tunnel syndrome, all patients complained for hypesthesia in the ulnar nerve’s distribution in the hand and 6 for additional night pain in the medial aspect of the elbow. Regarding the pronator syndrome, the patients complained for mild tenderness or pain at the proximal forearm as well as hypesthesia or paresthesias at the digits. Nerve conduction studies were positive only for the ulnar nerve compression neuropathy. Six patients were treated by decompressing both nerves at the same time through the same medial incision, creating large medial flaps. The ulnar nerve underwent a simple decompression. In one case that the symptoms were initailly attributed to ulnar nerve, a second operation for medial nerve decompression was required. In all patients symptoms subsided following surgical decompression. Four patients developed an ugly scar and 2 a hematoma. All returned to their previous occupation. Clinical tests and nerve conduction studies were performed postoperatively to evaluate the results; all of them turned out negative for ulnar and median nerve compression neuropathy. Simultaneous compression of the median and ulnar nerve at the elbow is rather rare. Careful evaluation of the patient’s symptoms as well as thorough clinical examination are the keystones for the correct diagnosis. Although decompression can be performed through the same medial incision, extensive dissection may be required


Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_III | Pages 491 - 491
1 Sep 2009
Hussan F Thambinayagam H Adams W Germon T
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Aim: To determine any difference which may exist between the interpretation of nerve root compression demonstrated by an MRI scan as assessed by a radiologist compared to a spinal surgeon. Introduction: There are a few standardized criteria for attempting to quantify the degree of lumbosacral nerve root compression demonstrated by radiological investigations. However, these are not validated and are not commonly employed. It is possible that the interpretation of films by surgeons is different to that by radiologists. If this is the case it could have important consequences, particularly if potential surgical targets are not recognised. We sought to investigate this potential discrepancy. Method: Data from consecutive patients undergoing lumbosacral nerve root decompression, by a single surgeon, between 2002 and 2005 was prospectively analysed. Inclusion criteria were:. uni- or bilateral single level nerve root decompression. Three month post-operative visual analogue scores (VAS, 10 = maximum pain, 0 = no pain) of less than 2 was required as an indicator that the pre-operative diagnosis had been correct (i.e. the surgery had significantly improved the patient’s pain). The MRI report of these patients was then scrutinised to see if the decompressed nerve root had been reported as significantly compressed on the pre-operative scan. Results: Only 75 % of films had a formal radiological report. Of reported films 22% had not reported the surgical target which rose to 33% for L5 nerve root compression. Conclusion: Consideration needs to be given to the potential placebo effect of surgery, the nature of the compressive pathology, the clinical details supplied to the radiologist and how the surgical decision making was made. However, in this sample a large minority of MRIs had no formal report. Of those that were reported, there was underreporting of potential surgical targets by radiologists. This implies that there could be a high incidence of false negative MRI reporting with potentially treatable conditions being unrecognised


Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_IV | Pages 476 - 476
1 Apr 2004
Bajhau A Bain G
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Introduction Ulnar nerve entrapment is the second commonest upper limb nerve entrapment syndrome. The purpose of this study was to determine the safety and efficacy of the Agee endoscopic system in ulnar nerve decompression at the elbow. This is the first report of its use in the elbow. Methods Six preserved cadaveric elbow specimens were used. One surgeon performed the endoscopic releases via a three centimetre longitudinal incision between the medial epicondyle and olecranon. All six specimens were examined independently with loupe magnification. This was done by extending the original incision to 20 cm. The ulnar nerve was assessed with regard to adequate decompression. The branching of the ulnar nerve at the elbow, as well as the presevation of these branches after the endoscopic procedure, was also studied. Results In all six specimens, the arcade of Struthers, the cubital tunnel retinaculum, and the flexor carpiulnaris aponeurosis were completely divided. There were an average of three motor branches to flexor carpiulnaris at a mean position of 21 mm distal to the medial epicondyle. Most of these were on the radial side of the nerve. The ulnar nerve was also found to give one to two sensory branches, at a mean position of nine millimetres proximal to the medial epicondyle. All the motor and sensory branches were found to be intact after the endoscopic procedure. Conclusions This study shows that the Agee endoscopic system is both safe and effective. It is a relatively simple procedure but cadaveric practice is recommended to obtain familiarity with the technique and the endoscopic view of the anatomy