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The Bone & Joint Journal
Vol. 103-B, Issue 2 | Pages 286 - 293
1 Feb 2021
Park CH Yan H Park J

Aims. No randomized comparative study has compared the extensile lateral approach (ELA) and sinus tarsi approach (STA) for Sanders type 2 calcaneal fractures. This randomized comparative study was conducted to confirm whether the STA was prone to fewer wound complications than the ELA. Methods. Between August 2013 and August 2018, 64 patients with Sanders type 2 calcaneus fractures were randomly assigned to receive surgical treatment by the ELA (32 patients) and STA (32 patients). The primary outcome was development of wound complications. The secondary outcomes were postoperative complications, pain scored of a visual analogue scale (VAS), American Orthopaedic Foot and Ankle Society (AOFAS) score, 36-item Short Form health survey, operative duration, subtalar joint range of motion (ROM), Böhler’s angle and calcaneal width, and posterior facet reduction. Results. Although four patients (12.5%) in the ELA groups and none in the STA group experienced complications, the difference was not statistically significant (p = 0.113). VAS and AOFAS score were significantly better in the STA group than in the ELA group at six months (p = 0.017 and p = 0.021), but not at 12 months (p = 0.096 and p = 0.200) after surgery. The operation time was significantly shorter in the STA group than in the ELA group (p < 0.001). The subtalar joint ROM was significantly better in the STA group (p = 0.015). Assessment of the amount of postoperative reduction compared with the uninjured limb showed significant restoration of calcaneal width in the ELA group compared with that in the STA group (p < 0.001). Conclusion. The ELA group showed higher frequency of wound complications than the STA group for Sanders type 2 calcaneal fractures even though this was not statistically significant. Cite this article: Bone Joint J 2021;103-B(2):286–293


Orthopaedic Proceedings
Vol. 103-B, Issue SUPP_7 | Pages 12 - 12
1 May 2021
Alho R Hems T
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Brachial plexus tumours (BPT) and peripheral nerve sheath tumours (PNST) are largely benign in nature, with malignant tumours being rare and presenting significant surgical challenges. Excision of benign tumours may relieve pain and other symptomology. This retrospective study analysed data from 138 PNST and 92 BPT patients managed by a single consultant orthopaedic or plastic surgeon experienced in nerve tumour surgery between January 1999 to December 2019. The most common benign tumours were schwannomas and neurofibromas, with sarcomas being the most common malignant tumour. In the PNST group 30 patients were managed by observation only. Twenty patients underwent trucut biopsy, 21 patients underwent biopsy and surgical excision and 56 patients underwent surgical excision only. There were nine complications, with two significant neurological deficits requiring further surgical intervention. No recurrence of tumours occurred in this group. In the BPT group 16 patients were managed by observation only. Seven patients underwent trucut biopsy, 16 patients biopsy and surgical excision and 44 BPT patients underwent surgical excision only. Sixteen patients had complications with two significant complications requiring urgent further surgical intervention. Seven patients had recurrence of tumours which presented as metastases, with three patients requiring further surgery to remove recurrence of tumours. BPT patients are more complex and present with both benign and malignant lesions and are therefore more prone to complications due to the complex nature of the surgery and higher recurrence rate of tumours than PNST. Benign tumours in both groups can be safely managed conservatively if patients’ symptomology is acceptable


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_1 | Pages 13 - 13
1 Jan 2019
Porter P Drew T Arnold G Wang W MacInnes A Nicol G
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The Pronator Quadratus (PQ) is commonly damaged in the surgical approach to the distal radius during volar plating. This study explored the functional strength of the PQ muscle, 12 months after volar plating of a distal radial fracture. Testing of treated and contralateral forearms was carried out using a custom-made Torque Measuring Device (TMD) and surface Electromyography (sEMG). To assess both the direct and indirect function of PQ in participants treated with volar plating and compared to the contralateral non-injured forearms. The angle of elbow flexion was varied from 45o, 90o and 135o when measuring forearm pronation. Mean peak torque of the major pronating muscles, PQ and Pronator Teres (PT) was directly measured with the TMD and the indirect activation of the PQ and PT was measured with sEMG. In total 27 participants were studied. A statistically significant reduction in mean peak pronation torque was observed in the volar plated forearms (P<0.05 SE 0.015, CI 95%). This is unlikely to be of clinical significance as the mean reduction was small (13.43Nm treated v 13.48Nm none treated). Pairwise comparison found no statistically significant reduction in peak torque between 45o, 90o and 135o of elbow flexion. There was an increase in PQ muscle activation at 135o compared to 45o elbow flexion. The converse was identified in PT. The small but statistically significant difference in mean peak torque in treated and uninjured forearms is unlikely to be of clinical significance and results suggest adequate functional recovery of the PQ after volar plating


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 408 - 408
1 Sep 2012
Gómez-Galván M Bernaldez MJ Nicolás R Quiles M
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In hallux valgus (HV), toe pronation is frequently seen, although there may be some with no pronation. Aims. to evaluate big toe pronation in patients with HV with a clinical and radiographic method. Material and methods. prospective study of 40 patients with HV on the waiting list for surgical treatment. Patients were standing barefoot on a rigid platform. Digital photographs were taken in a frontal plane to obtain the nail-floor angle formed by the secant line of toenail border and a line formed by the platform edge. All patients were evaluated using the AOFAS for HV and lesser toes, if they were affected. Personal and social data were obtained from clinical interviews. Charge radiographs were used to obtain HV, intermetatarsal and PASA angles, first metatarsal rotation as well as sesamoid bones displacement. Exclusion criteria: rheumatoid arthritis and previous intervention on foot or toes. Statistical analysis were performed with a multiple lineal regression. Results. the mean age was 57 years old, they were 31 female and 9 men, with an average AOFAS score of 49, they had a mean of 37° HV angle, 27° nail-floor angle, 20° first metatarsal rotation in about half of patients. We have found a statistical significant relation between HV and nail-floor angles (p<0,001), between sesamoid bones displacement and nail-floor angles (p<0,007), between first metatarsal rotation and HV angle (p<0,001. We found no statistically significant but strong relation between first metatarsal rotation and sesamoid bones displacement. Conclusion. nail-floor angle is strongly related to degree of HV, displacement of sesamoid bones and rotation of the first metatarsal


Bone & Joint Open
Vol. 5, Issue 11 | Pages 962 - 970
4 Nov 2024
Suter C Mattila H Ibounig T Sumrein BO Launonen A Järvinen TLN Lähdeoja T Rämö L

Aims

Though most humeral shaft fractures heal nonoperatively, up to one-third may lead to nonunion with inferior outcomes. The Radiographic Union Score for HUmeral Fractures (RUSHU) was created to identify high-risk patients for nonunion. Our study evaluated the RUSHU’s prognostic performance at six and 12 weeks in discriminating nonunion within a significantly larger cohort than before.

Methods

Our study included 226 nonoperatively treated humeral shaft fractures. We evaluated the interobserver reliability and intraobserver reproducibility of RUSHU scoring using intraclass correlation coefficients (ICCs). Additionally, we determined the optimal cut-off thresholds for predicting nonunion using the receiver operating characteristic (ROC) method.


Bone & Joint Open
Vol. 4, Issue 4 | Pages 273 - 282
20 Apr 2023
Gupta S Yapp LZ Sadczuk D MacDonald DJ Clement ND White TO Keating JF Scott CEH

Aims

To investigate health-related quality of life (HRQoL) of older adults (aged ≥ 60 years) after tibial plateau fracture (TPF) compared to preinjury and population matched values, and what aspects of treatment were most important to patients.

Methods

We undertook a retrospective, case-control study of 67 patients at mean 3.5 years (SD 1.3; 1.3 to 6.1) after TPF (47 patients underwent fixation, and 20 nonoperative management). Patients completed EuroQol five-dimension three-level (EQ-5D-3L) questionnaire, Lower Limb Function Scale (LEFS), and Oxford Knee Scores (OKS) for current and recalled prefracture status. Propensity score matching for age, sex, and deprivation in a 1:5 ratio was performed using patient level data from the Health Survey for England to obtain a control group for HRQoL comparison. The primary outcome was the difference in actual (TPF cohort) and expected (matched control) EQ-5D-3L score after TPF.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 549 - 549
1 Sep 2012
Pengas I Pillai A Gayed W Assiotis A Mcnicholas M
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The patella is a complex sesamoid bone within the quadriceps enhancing mechanical advantage of the extensor mechanism. Depending on activity, the patella magnifies either force or displacement; behaving as a lever, by redirecting quadriceps force it also acts as a pulley. Aim. We describe and validate a device for obtaining consistent dynamic weight bearing views of the patellofemoral joint (PFJ). Materials and Methods. Weight bearing (WB) axial views of 48 knees (24 patients) were performed using the device. The sulcus angle (SA), congruence angle (CA), lateral patellofemoral angle (LPFA), facet angle (FA) and patellofemoral displacement (PD) were measured. These were compared with similar measurements made on prone (PR) and axial (AX) radiographs of same knees. Results. Variance (V=SD2) and Standard error of mean (SEM/95% CI) for all measurements in each of the three views were analysed. For the Sulcus Angle, Congruence angle and LPFA, the WB view had the lowest SEM and the least variance in comparison to PR and AX views (SEM 1.05/V 30.14, SEM 2.52/V 172.39 and SEM 1.34/V 47.61 respectively for the SA, SEM 3.09/V 256, SEM 2.79/V 210.25 and SEM 3.37/V 306.25 respectively for the CA, SEM 0.67/V 11.9, SEM 1.20/V39.06 and SEM 1.03/V 28.83 respectively for the LPFA). SEM and Variance for FA measurements were similar for WB and AX views but superior to PR views (SEM 1.62/V 70.56, SEM 1.6/V 68.9 and SEM 2.3/V 148.84 respectively). Mean PFD was maximum on the WB view compared to the PR and AX views (36.0, −45.62 and 22.23 respectively) with lowest SEM and V (SEM 8.73/V 2052.0, SEM 18.65/V 92959.67 and SEM 9.70/V 2540.16 respectively). Conclusion. The WB view as introduced and reported here has consistently lower Variance, SEM and SD in comparison to Axial and Prone views for all measurements of the PFJ. WB view also gives a more accurate dynamic measure of Patello Femoral displacement. The view is easily obtained and readily reproduced


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 362 - 362
1 Sep 2012
Aparicio García P Izquierdo Corres O Casellas Garcia G Castro Ruiz R Cavanilles Walker JM Costa Tutusaus L Castellanos J Yunta A
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Introduction. Distal radius fractures (DRF) are a common injury in the A&E departments, being a major cause of disability of the upper extremity. The aim of this prospective study is to assess the possible association between objective physical variables such as wrist range of movement (ROM), radiological parameters, and upper extremity disability (measured by the DASH questionnaire), after conservative treatment of DRF. Patients and methods. 44 patients with non-operatively managed DRF were enrolled in a prospective cohort study from July 2007 till September 2009. Inclusion criteria: unilateral DRF in skeletally mature patients, treated non-operatively with closed reduction and cast. Patients who sustained a previous fracture of the wrist, or bilateral wrist fracture, or with dementia, were excluded. After the closed reduction and inmovilization of the fracture in the A&E department we asked the patients to complete the DASH questionnaire, referring to their baseline pre-fracture state. All fractures were classified according to the AO classification. After one year, 36 patients were still available for follow-up purposes. We assesed the following objective physical variables: ROM of both wrists: flexion/extension arc and pronation/supination arch. We recorded the following radiologic parameters: radial angulation, volar angulation and radial shortening. The patient-perceived results were measured by the DASH questionnaire, while pain was measured using the VAS scale. Statistical analysis was performed using the SPSS 15.0. Results. Average follow up: 13,39 months (range 12.3–16.43). Mean age: 62.5 years (18–91). 75% of the fractures were 23A and 24,1% 23B. Average pre-fracture DASH score was 19.6 and 42.1 at the end of follow-up. Radial tilt: 18.18°. Volar tilt: 3,35°. Radial shortening: 5,76mm. ROM for flexion/extension of the involved wrist: 103.6° and non-involved wrist: 131.2°. ROM for pronation/supination involved wrist: 145.7° and non-involved wrist: 173.8°. Post-fracture VAS score: 3.5. We didn't find any significant statistical correlation between the lost of ROM, neither with radiological malaligment nor with patient-perceived outcomes. But we found a significant association between items 24–28 of the DASH (except item 26) questionnaire and the VAS score. Conclusions. The results of the present study show that, conservative treatment of DRF seems to deteriorate the patient self-reported outcomes measured by the DASH questionnaire


The Bone & Joint Journal
Vol. 104-B, Issue 8 | Pages 963 - 971
1 Aug 2022
Sun Z Liu W Liu H Li J Hu Y Tu B Wang W Fan C

Aims

Heterotopic ossification (HO) is a common complication after elbow trauma and can cause severe upper limb disability. Although multiple prognostic factors have been reported to be associated with the development of post-traumatic HO, no model has yet been able to combine these predictors more succinctly to convey prognostic information and medical measures to patients. Therefore, this study aimed to identify prognostic factors leading to the formation of HO after surgery for elbow trauma, and to establish and validate a nomogram to predict the probability of HO formation in such particular injuries.

Methods

This multicentre case-control study comprised 200 patients with post-traumatic elbow HO and 229 patients who had elbow trauma but without HO formation between July 2019 and December 2020. Features possibly associated with HO formation were obtained. The least absolute shrinkage and selection operator regression model was used to optimize feature selection. Multivariable logistic regression analysis was applied to build the new nomogram: the Shanghai post-Traumatic Elbow Heterotopic Ossification Prediction model (STEHOP). STEHOP was validated by concordance index (C-index) and calibration plot. Internal validation was conducted using bootstrapping validation.


The Journal of Bone & Joint Surgery British Volume
Vol. 92-B, Issue 11 | Pages 1558 - 1562
1 Nov 2010
Arora R Gabl M Pechlaner S Lutz M

We identified 11 women with a mean age of 74 years (65 to 81) who sustained comminuted distal radial and ulnar fractures and were treated by volar plating and slight shortening of the radius combined with a primary Sauvé-Kapandji procedure. At a mean of 46 months (16 to 58), union of distal radial fractures and arthrodesis of the distal radioulnar joint was seen in all patients. The mean shortening of the radius was 12 mm (5 to 18) compared to the contralateral side. Flexion and extension of the wrist was a mean of 54° and 50°, respectively, and the mean pronation and supination of the forearm was 82° and 86°, respectively. The final mean disabilities of the arm, shoulder and hand score was 26 points. According to the Green and O’Brien rating system, eight patients had an excellent, two a good and one a fair result. The good clinical and radiological results, and the minor complications without the need for further operations related to late ulnar-sided wrist pain, justify this procedure in the elderly patient


The Journal of Bone & Joint Surgery British Volume
Vol. 87-B, Issue 3 | Pages 374 - 379
1 Mar 2005
Goldfarb CA Ricci WM Tull F Ray D Borrelli J

Our aim was to correlate the health status with objective and radiological outcomes in patients treated by open reduction and internal fixation for fractures of both bones of the forearm. We assessed 23 patients (24 fractures) subjectively, objectively and radiologically at a mean of 34 months (11 to 72). Subjective assessment used the disability of the arm, shoulder and hand (DASH) and musculoskeletal functional attachment (MFA) questionnaires. The range of movement of the forearm and wrist, grip and pinch strength were measured objectively and standardised radiographs were evaluated. In general, patients reported good overall function based on the DASH (mean 12; range 0 to 42) and MFA (mean 19; range 0 to 51) scores. However, pronation and grip and pinch strength were significantly decreased (p < 0.005). These deficiencies correlated with poorer subjective outcomes. Operative stabilisation of fractures of the radius and ulna led to a reliably acceptable functional outcome. However, despite these generally satisfactory results, the outcome scores worsened with reduction in the range of movement of the forearm and wrist


The Journal of Bone & Joint Surgery British Volume
Vol. 88-B, Issue 5 | Pages 645 - 648
1 May 2006
Jepegnanam TS

Four men who presented with chronic dislocation of the radial head and nonunion or malunion of the ulna were reviewed after open reduction of the radial head and internal fixation of the ulna in attempted overcorrection. Their mean age was 37 years (28 to 46) and the mean interval between injury and reconstruction was nine months (4 to 18). The mean follow-up was 24 months (15 to 36). One patient who had undergone secondary excision of the radial head was also followed up for comparison. The three patients who had followed the treatment protocol had nearly normal flexion, extension and supination and only very occasional pain. All had considerable loss of pronation which did not affect patient satisfaction. Preservation of the radial head in chronic adult Monteggia fractures appears to be a promising mode of treatment


The Bone & Joint Journal
Vol. 95-B, Issue 2 | Pages 151 - 159
1 Feb 2013
Duckworth AD McQueen MM Ring D

Most fractures of the radial head are stable undisplaced or minimally displaced partial fractures without an associated fracture of the elbow or forearm or ligament injury, where stiffness following non-operative management is the primary concern. Displaced unstable fractures of the radial head are usually associated with other fractures or ligament injuries, and restoration of radiocapitellar contact by reconstruction or prosthetic replacement of the fractured head is necessary to prevent subluxation or dislocation of the elbow and forearm. In fractures with three or fewer fragments (two articular fragments and the neck) and little or no metaphyseal comminution, open reduction and internal fixation may give good results. However, fragmented unstable fractures of the radial head are prone to early failure of fixation and nonunion when fixed. Excision of the radial head is associated with good long-term results, but in patients with instability of the elbow or forearm, prosthetic replacement is preferred. This review considers the characteristics of stable and unstable fractures of the radial head, as well as discussing the debatable aspects of management, in light of the current best evidence. Cite this article: Bone Joint J 2013;95-B:151–9


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_13 | Pages 14 - 14
1 Jun 2017
Ferguson DO Fernandes J
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Background. Chronic acquired radial head dislocations pose a complex problem in terms of surgical decision making, especially if surgery has already previously failed. There are several underlying causes that should be investigated, including previous trauma resulting in a missed Monteggia fracture. Aim. To review the clinical and radiological outcomes for children up to 18 years of age, with a radial head dislocation treated with circular frame surgery. Method. A retrospective study was designed to identify patients from our departmental database who had undergone circular frame surgery to reduce the radial head during the past 6 years. Results. 20 patients were identified with a mean age of 11 years (3 – 17). Fourteen patients had a diagnosis of missed Monteggia fracture, three patients had Hereditary Multiple Exostoses, one had Nail Patella syndrome, one had Osteogenesis Imperfecta and one had rickets. The average delay between trauma and frame surgery was three years (0 – 7). All patients achieved union of their ulnar or radial osteotomy. The average frame duration was 167 days (61 – 325) and complications included delayed union and residual radial head subluxation. Thirteen patients achieved at least 40 degrees of supination, and 10 patients achieved at least 40 degrees of pronation. Eighteen patients achieved an arc of movement from full extension to at least 110 degrees of flexion. Eleven patients reported their pain level at final follow-up, of which 9 had no pain at all. Conclusion and Discussion. Circular frame surgery was a reliable and consistent method of reducing chronic radial head dislocations and improving function. Radiological appearances of mild residual subluxation of the radial head were clinically well tolerated and generally required no further treatment


Bone & Joint Research
Vol. 5, Issue 9 | Pages 427 - 435
1 Sep 2016
Stravinskas M Horstmann P Ferguson J Hettwer W Nilsson M Tarasevicius S Petersen MM McNally MA Lidgren L

Objectives. Deep bone and joint infections (DBJI) are directly intertwined with health, demographic change towards an elderly population, and wellbeing. The elderly human population is more prone to acquire infections, and the consequences such as pain, reduced quality of life, morbidity, absence from work and premature retirement due to disability place significant burdens on already strained healthcare systems and societal budgets. DBJIs are less responsive to systemic antibiotics because of poor vascular perfusion in necrotic bone, large bone defects and persistent biofilm-based infection. Emerging bacterial resistance poses a major threat and new innovative treatment modalities are urgently needed to curb its current trajectory. Materials and Methods. We present a new biphasic ceramic bone substitute consisting of hydroxyapatite and calcium sulphate for local antibiotic delivery in combination with bone regeneration. Gentamicin release was measured in four setups: 1) in vitro elution in Ringer’s solution; 2) local elution in patients treated for trochanteric hip fractures or uncemented hip revisions; 3) local elution in patients treated with a bone tumour resection; and 4) local elution in patients treated surgically for chronic corticomedullary osteomyelitis. Results. The release pattern in vitro was comparable with the obtained release in the patient studies. No recurrence was detected in the osteomyelitis group at latest follow-up (minimum 1.5 years). Conclusions. This new biphasic bone substitute containing antibiotics provides safe prevention of bone infections in a range of clinical situations. The in vitro test method predicts the in vivo performance and makes it a reliable tool in the development of future antibiotic-eluting bone-regenerating materials. Cite this article: M. Stravinskas, P. Horstmann, J. Ferguson, W. Hettwer, M. Nilsson, S. Tarasevicius, M. M. Petersen, M. A. McNally, L. Lidgren. Pharmacokinetics of gentamicin eluted from a regenerating bone graft substitute: In vitro and clinical release studies. Bone Joint Res 2016;5:427–435. DOI: 10.1302/2046-3758.59.BJR-2016-0108.R1


The Bone & Joint Journal
Vol. 103-B, Issue 5 | Pages 902 - 907
1 May 2021
Marson BA Ng JWG Craxford S Chell J Lawniczak D Price KR Ollivere BJ Hunter JB

Aims

The management of completely displaced fractures of the distal radius in children remains controversial. This study evaluates the outcomes of surgical and non-surgical management of ‘off-ended’ fractures in children with at least two years of potential growth remaining.

Methods

A total of 34 boys and 22 girls aged 0 to ten years with a closed, completely displaced metaphyseal distal radial fracture presented between 1 November 2015 and 1 January 2020. After 2018, children aged ten or under were offered treatment in a straight plaster or manipulation under anaesthesia with Kirschner (K-)wire stabilization. Case notes and radiographs were reviewed to evaluate outcomes. In all, 16 underwent treatment in a straight cast and 40 had manipulation under anaesthesia, including 37 stabilized with K-wires.


The Bone & Joint Journal
Vol. 103-B, Issue 9 | Pages 1526 - 1533
1 Sep 2021
Schoeneberg C Pass B Oberkircher L Rascher K Knobe M Neuerburg C Lendemans S Aigner R

Aims

The impact of concomitant injuries in patients with proximal femoral fractures has rarely been studied. To date, the few studies published have been mostly single-centre research focusing on the influence of upper limb fractures. A retrospective cohort analysis was, therefore, conducted to identify the impact and distribution of concomitant injuries in patients with proximal femoral fractures.

Methods

A retrospective, multicentre registry-based study was undertaken. Between 1 January 2016 and 31 December 2019, data for 24,919 patients from 100 hospitals were collected in the Registry for Geriatric Trauma. This information was queried and patient groups with and without concomitant injury were compared using linear and logistic regression models. In addition, we analyzed the influence of the different types of additional injuries.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 391 - 391
1 Sep 2012
Karuppaiah K Miranda S
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Introduction. Surgical treatment is justified in patients with fifth metacarpal shaft fractures with angulation exceeding 30 degrees, as these patients are prone to have shortening, restriction of movements, decreased efficiency of the flexor tendons and poor cosmetic results1,2. The authors describe a new technique where these patients can be treated in the clinic non-surgically. Material and Methods. Twenty-three patients with angulated fractures were prospectively enrolled for the study from Jan 2009 to Dec 2009. After appropriately instructing the patient, an ulnar nerve block was performed at the wrist. Once the nerve block had taken effect, the fracture was manipulated and an ulna gutter 3-point moulded splint was applied in the plaster room. The reduction was then confirmed with an x-ray. The patients were seen at 3 weeks for splint removal and for long-term follow-up at least 6 months later. Results. All the patients had a completely pain-free manipulation and complete reduction was achieved in all the patients. There were no complications related to the technique. Conclusions. In the NHS with pressure on resources, the authors suggest the treatment described above of these fractures in the clinic. It is a safe, cost-effective and easily learnt technique


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_25 | Pages 14 - 14
1 May 2013
Clement N Porter D
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There is a high rate of forearm deformity in patients with hereditary multiple exostoses (HME), and a quarter of patients acquire a dislocated radial head due to disproportionate ulnar shortening. One-hundred and six patients with HME aged 15 years or older were identified from a prospective database. Flexion and extension of the elbow and wrist, and supination and pronation of the forearm was measured. The number of exostoses affecting the proximal and distal radius and ulna were recorded. Proportional ulna length was calculated as a percentage of the patients measured height ([ulna length/height] × 100). More than 70% of patients were affected by exostoses of the forearm, of which the distal radius was the commonest site to be affected (73%). One in seven patients had a dislocated radial head, which was associated with proportional ulna shortening (p<0.001). Both radial head dislocation (p<0.001) and proportional ulna shortening (p<0.001) were confirmed to be independent predictors of forearm motion on multivariable regression analysis. In conjunction with other predictors these could be used to calculate ROM of the forearm. In addition proportional ulna length was also an independent predictor of radial head dislocation (p<0.001). Proportional ulna length could be used as a tool to identify patients at risk of diminished forearm motion and radial head dislocation during childhood, who could be monitored clinically and radiographically, and surgical intervention could be offered before deterioration in function and dislocation of the radial head occurs


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_10 | Pages 11 - 11
1 Feb 2013
Wohlgemut JM Medlock G Stevenson IM Johnstone AJ
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Magnetic resonance imaging (MRI) validation of a novel method of assessing Distal Radial Fracture (DRF) reduction using the hypothesised constant relationship between the dorsal radial cortex (DC) and the superior pole of the lunate (SL). MRI scans of 28 normal wrists were examined. Scans included the distal third of the radius to the proximal carpal row. Beginning 5cm proximal to the distal radius articular surface, a line was superimposed upon the DC extending distally through the metaphyseal flare. Lunate height (LH) and distance from the DC line to the SL (DC-SL) were measured at 5-degree rotational increments around the radial shaft central axis to a total of 30 degrees of supination and pronation (S+P). The DC-SL/LH ratio was compared to 0 degrees (anatomical lateral) using the two-tailed paired student t-test. There was no significant difference in DC-SL:LH between 0 degrees of rotation and any 5-degree increment up to 30 degrees of S+P (lowest p=0.075). The DC line lay consistently dorsal to the SL. A constant DC-SL relationship exists with up to 30 degrees of S+P. This reference can be quickly and accurately used to assess DRF reduction in poorly-taken films with malrotation up to 30 degrees from anatomical lateral. Research comparing DC-SL distance with volar tilt to assess DRF reduction is needed