Benjamin John Floyd Dean

Aims: There is a lack of published evidence relating to the risk factors for nonunion seen in acute scaphoid fractures. We aimed to describe the risk factors for nonunion in adult patients (aged ≥ 16 years) treated with cast immobilization for acute scaphoid fractures. Methods: We conducted a single centre cohort study of patients with an acute scaphoid fracture and who were followed up with a CT scan to assess union. Data were gathered retrospectively. Outcomes were classified as union or nonunion based on CT scan follow-up. Descriptive and regression analyses were performed. Results: Of 502 patients, there were 50 nonunions (10%), of which 39 (78%) were male. The risk of nonunion tripled when fracture displacement was ≥ 1 mm compared with < 1 mm displacement (odds ratio (OR) 3.10; 95% CI 1.42 to 6.71. There was strong evidence that age was a risk factor for nonunion and the relationship between age and nonunion was non-linear. The reference age was 26 years and the highest risk of nonunion was in the 26- to 36-year age group. The risk of nonunion steadily reduced as age increased above aged 36 years; for example, patients aged 40 years older (66 years old) had a 91% lower risk of nonunion respectively relative to the reference age group. Conclusion: The two risk factors for scaphoid nonunion in those treated with cast immobilization were fracture displacement and age. Further assessment and research could help inform clinical decision making and may help guide future research to improve clinical pathways of care. Cite this article: Bone Jt Open 2026;7(8):1001–1006.

Introduction: Non-traumatic wrist disorders (NTWD) are commonly encountered across a range of healthcare settings. Uncertainty exists regarding optimal management and how this is reflected in care provision through clinical guidelines and pathways. We aimed to identify existing UK-based clinical guidelines and pathways and examine their quality. Methods: For this review, we searched MEDLINE, PubMed, Embase, CINAHL, ProQuest, Scopus, Web of Science, Google, The National Grey Literature Collection, TRIP, and the National Institute for Health and Care Excellence and undertook targeted outreach and engagement activities with healthcare professional networks. We included clinical practice guidelines and pathways for NTWD published after 2010. The AGREE II tool was used to assess guideline quality based on the domains of topic selection, best practice identification, data collection, and rigor of analysis. Results: Of 7017 records identified, 15 eligible clinical guidelines and pathways for NTWD management were eligible and included. De Quervain’s tenosynovitis and ganglion cyst were most frequently covered while other NTWD had few or no guidelines or pathways. Variation in the composition and nomenclature of sources was found. Quality assessment using the AGREE II tool identified variability and overall unsatisfactory quality. Conclusion: There is a lack of high-quality clinical guidelines and pathways for NTWD within the UK healthcare system indicating an obstacle to improvements in healthcare delivery.

Objectives Early MRI use varies in the management of acute wrist injuries in the UK, with only a minority of National Health Service (NHS) centres being able to offer this to patients. In this study, we aim to explore the perspectives of staff and patients on the use of early MRI in the management of wrist injuries. Design This is a cross-sectional qualitative study using semistructured, face-to-face and remote interviews. Interviews were audio recorded, transcribed verbatim and analysed using thematic analysis. Setting 10 NHS Trusts in the UK. Participants We interviewed a sample consisting of 37 NHS staff members and 21 patients. Results We analysed the data into three overarching themes. The first theme described the negative impact of wrist injuries on both staff and patients. Staff reported an uncomfortable feeling that they had ‘short-changed’ patients with older non-MRI based pathways, and that the consequences of missing a scaphoid fracture could be a ‘horrible thing’ for patients. The second theme described how early MRI was perceived as a ‘win for everyone’. For patients, the win encompassed the relief of a speedy diagnosis which helped them to get better. Staff saw early MRI as a win because it ‘revolutionised care’ and ‘reduced the clinic footprint’. The final theme defined the key ingredients of delivering an early MRI pathway: a simple pathway with clear accountability, timely access to MRI and prompt reporting of results, a safe pathway with safety nets to avoid patients being lost, data and audit of the time to MRI and definitive treatment, bottom-up engagement, clear communication and looking after your team. Conclusions Our findings contribute to a better understanding of stakeholders’ perspectives on wrist injury pathways in the UK NHS.

Aims: To evaluate the diagnostic characteristics and reliability of radiological methods used to assess scaphoid fracture union through a systematic review and meta-analysis.Methods: MEDLINE, Embase, and the Cochrane Library were searched from inception to June 2022. Any study reporting data on the diagnostic characteristics and/or the reliability of radiological methods assessing scaphoid union was included. Data were extracted and checked for accuracy and completeness by pairs of reviewers. Methodological quality was assessed using the QUADAS-2 tool.Results: A total of 13 studies were included, which were three assessed radiographs alone, six CT alone, and four radiographs + CT. Diagnostic sensitivity was assessed by CT in three studies (0.78, 0.78, and 0.73) and by radiographs in two studies (0.65, 0.75). Diagnostic specificity was assessed by CT in three studies (0.96, 0.8, 0.4) and by radiographs in two studies (0.67, 0.4). Interobserver reliability was assessed for radiographs by seven studies (two fair, four moderate, and one substantial) and for CT in nine studies (one fair, one moderate, six substantial, and one almost perfect).Conclusion: There is evidence to support both the use of CT and radiographs in assessing scaphoid fracture union. Although CT appears superior in terms of both its diagnostic characteristics and reliability, further research is necessary to better define the optimal clinical pathways for patients.Cite this article: Bone Jt Open 2025;6(3):246–253.

The development of the ulnar collateral ligament (UCL) guideline was undertaken in accordance with the British Society for Surgery of the Hand Evidence for Surgical Treatment (BEST) Process Manual, which has been accredited by the National Institute for Health and Care Excellence, UK. This review article serves as a summary of the systematic reviews and the final guideline. The group included two patients, a radiologist, a commissioner, an emergency medicine doctor, hand therapists and hand surgeons. The group’s recommendations are that patients with acute UCL injuries should be assessed with a history, clinical examination and radiographs. Patients without significant joint laxity can be treated non-surgically. Patients with significant joint laxity on clinical examination may be treated with non-surgical joint immobilization or surgical repair and should reach a shared decision with their clinician about the definitive treatment within 2 weeks of presentation.

Aims: Complete ruptures of the ulnar collateral ligament (UCL) of the thumb are a common injury, yet little is known about their current management in the UK. The objective of this study was to assess the way complete UCL ruptures are managed in the UK.Methods: We carried out a multicentre, survey-based cross-sectional study in 37 UK centres over a 16-month period from June 2022 to September 2023. The survey results were analyzed descriptively.Results: A total of 37 centres participated, of which nine were tertiary referral hand centres and 28 were district general hospitals. There was a total of 112 respondents (69 surgeons and 43 hand therapists). The strongest influence on the decision to offer surgery was the lack of a firm ‘endpoint’ to stressing the metacarpophalangeal joint (MCPJ) in either full extension or with the MCPJ in 30° of flexion. There was variability in whether additional imaging was used in managing acute UCL injuries, with 46% routinely using additional imaging while 54% did not. The use of a bone anchor was by far the most common surgical option for reconstructing an acute ligament avulsion (97%, n = 67) with a transosseous suture used by 3% (n = 2). The most common duration of immobilization for those managed conservatively was six weeks (58%, n = 65) and four weeks (30%, n = 34). Most surgeons (87%, n = 60) and hand therapists (95%, n = 41) would consider randomizing patients with complete UCL ruptures in a future clinical trial.Conclusion: The management of complete UCL ruptures in the UK is highly variable in certain areas, and there is a willingness for clinical trials on this subject.Cite this article: Bone Jt Open 2024;5(8):708–714.

Aims: There is a lack of published evidence relating to the rate of nonunion seen in occult scaphoid fractures, diagnosed only after MRI. This study reports the rate of delayed union and nonunion in a cohort of patients with MRI-detected acute scaphoid fractures.Methods: This multicentre cohort study at eight centres in the UK included all patients with an acute scaphoid fracture diagnosed on MRI having presented acutely following wrist trauma with normal radiographs. Data were gathered retrospectively for a minimum of 12 months at each centre. The primary outcome measures were the rate of acute surgery, delayed union, and nonunion.Results: A total of 1,989 patients underwent acute MRI for a suspected scaphoid fracture during the study period, of which 256 patients (12.9%) were diagnosed with a previously occult scaphoid fracture. Of the patients with scaphoid fractures, six underwent early surgical fixation (2.3%) and there was a total of 16 cases of delayed or nonunion (6.3%) in the remaining 250 patients treated with cast immobilization. Of the nine nonunions (3.5%), seven underwent surgery (2.7%), one opted for non-surgical treatment, and one failed to attend follow-up. Of the seven delayed unions (2.7%), one (0.4%) was treated with surgery at two months, one (0.4%) did not attend further follow-up, and the remaining five fractures (1.9%) healed after further cast immobilization. All fractures treated with surgery had united at follow-up. There was one complication of surgery (prominent screw requiring removal).Conclusion: MRI-detected scaphoid fractures are not universally benign, with delayed or nonunion of scaphoid fractures diagnosed only after MRI seen in over 6% despite appropriate initial immobilization, with most of these patients with nonunion requiring surgery to achieve union. This study adds weight to the evidence base supporting the use of early MRI for these patients.Cite this article: Bone Joint J 2024;106-B(4):387–393.

Aims: The evidence demonstrating the superiority of early MRI has led to increased use of MRI in clinical pathways for acute wrist trauma. The aim of this study was to describe the radiological characteristics and the inter-observer reliability of a new MRI based classification system for scaphoid injuries in a consecutive series of patients. Methods: We identified 80 consecutive patients with acute scaphoid injuries at one centre who had presented within four weeks of injury. The radiographs and MRI scans were assessed by four observers, two radiologists, and two hand surgeons, using both pre-existing classifications and a new MRI based classification tool, the Oxford Scaphoid MRI Assessment Rating Tool (OxSMART). The OxSMART was used to categorize scaphoid injuries into three grades: contusion (grade 1); unicortical fracture (grade 2); and complete bicortical fracture (grade 3). Results: In total there were 13 grade 1 injuries, 11 grade 2 injuries, and 56 grade 3 injuries in the 80 consecutive patients. The inter-observer reliability of the OxSMART was substantial (Kappa = 0.711). The inter-observer reliability of detecting an obvious fracture was moderate for radiographs (Kappa = 0.436) and MRI (Kappa = 0.543). Only 52% (29 of 56) of the grade 3 injuries were detected on plain radiographs. There were two complications of delayed union, both of which occurred in patients with grade 3 injuries, who were promptly treated with cast immobilization. There were no complications in the patients with grade 1 and 2 injuries and the majority of these patients were treated with early mobilization as pain allowed. Conclusion: This MRI based classification tool, the OxSMART, is reliable and clinically useful in managing patients with acute scaphoid injuries. Cite this article: Bone Jt Open 2022;3(11):913–920.

Aims Osteoarthritis (OA) affecting the thumb carpometacarpal joint (CMCJ) is a common painful condition. In this study, we aimed to explore clinicians' approach to management with a particular focus on the role of specific interventions that will inform the design of future clinical trials. Methods We interviewed a purposive sample of 24 clinicians, consisting of 12 surgeons and 12 therapists (four occupational therapists and eight physiotherapists) who managed patients with CMCJ OA. This is a qualitative study using semi-structured, online interviews. Interviews were audio-recorded, transcribed verbatim, and analyzed using thematic analysis. Results A total of 14 themes were developed, six of which were developed relating to the clinical management of CMCJ OA: 1) A flexible 'ladder' approach starting with conservative treatment first; 2) The malleable role of steroid injection; 3) Surgery as an invasive and risky last resort; 4) A shared and collaborative approach; 5) Treating the whole person; and 6) Severity of life impact influences treatment. The remaining eight themes were developed relating to clinical trial barriers and facilitators: 1) We need to embrace uncertainty; 2) You are not losing out by taking part; 3) It is difficult to be neutral about certain treatments; 4) Difficult to recruit to 'no treatment' ; 5) Difficult to recruit to a trial comparing no surgery to surgery; 6) Patients are keen to participate in research; 7) Burden on staff and participants; and 8) A enthusiasm for a variety of potential trial arms. Conclusion Our findings contribute to a better understanding of how clinicians manage thumb CMCJ OA in their practice settings. Our study also provides useful insights informing the design of randomized clinical trials involving steroid injections and surgery in people with thumb CMCJ OA.