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Bone & Joint Open
Vol. 5, Issue 8 | Pages 697 - 707
22 Aug 2024
Raj S Grover S Spazzapan M Russell B Jaffry Z Malde S Vig S Fleming S

Aims. The aims of this study were to describe the demographic, socioeconomic, and educational factors associated with core surgical trainees (CSTs) who apply to and receive offers for higher surgical training (ST3) posts in Trauma & Orthopaedics (T&O). Methods. Data collected by the UK Medical Education Database (UKMED) between 1 January 2014 and 31 December 2019 were used in this retrospective longitudinal cohort study comprising 1,960 CSTs eligible for ST3. The primary outcome measures were whether CSTs applied for a T&O ST3 post and if they were subsequently offered a post. A directed acyclic graph was used for detecting confounders and adjusting logistic regression models to calculate odds ratios (ORs), which assessed the association between the primary outcomes and relevant exposures of interest, including: age, sex, ethnicity, parental socioeconomic status (SES), domiciliary status, category of medical school, Situational Judgement Test (SJT) scores at medical school, and success in postgraduate examinations. This study followed STROBE guidelines. Results. Compared to the overall cohort of CSTs, females were significantly less likely to apply to T&O (OR 0.37, 95% CI 0.30 to 0.46; n = 155/720 female vs n = 535/1,240 male; p < 0.001). CSTs who were not UK-domiciled prior to university were nearly twice as likely to apply to T&O (OR 1.99, 95% CI 1.39 to 2.85; n = 50/205 vs not UK-domiciled vs n = 585/1,580 UK-domiciled; p < 0.001). Age, ethnicity, SES, and medical school category were not associated with applying to T&O. Applicants who identified as ‘black and minority ethnic’ (BME) were significantly less likely to be offered a T&O ST3 post (OR 0.70, 95% CI 0.51 to 0.97; n = 165/265 BME vs n = 265/385 white; p = 0.034). Differences in age, sex, SES, medical school category, and SJT scores were not significantly associated with being offered a T&O ST3 post. Conclusion. There is an evident disparity in sex between T&O applicants and an ethnic disparity between those who receive offers on their first attempt. Further high-quality, prospective research in the post-COVID-19 pandemic period is needed to improve equality, diversity, and inclusion in T&O training. Cite this article: Bone Jt Open 2024;5(8):697–707


Bone & Joint Open
Vol. 5, Issue 8 | Pages 708 - 714
22 Aug 2024
Mikhail M Riley N Rodrigues J Carr E Horton R Beale N Beard DJ Dean BJF

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.


Bone & Joint Open
Vol. 5, Issue 8 | Pages 671 - 680
14 Aug 2024
Fontalis A Zhao B Putzeys P Mancino F Zhang S Vanspauwen T Glod F Plastow R Mazomenos E Haddad FS

Aims

Precise implant positioning, tailored to individual spinopelvic biomechanics and phenotype, is paramount for stability in total hip arthroplasty (THA). Despite a few studies on instability prediction, there is a notable gap in research utilizing artificial intelligence (AI). The objective of our pilot study was to evaluate the feasibility of developing an AI algorithm tailored to individual spinopelvic mechanics and patient phenotype for predicting impingement.

Methods

This international, multicentre prospective cohort study across two centres encompassed 157 adults undergoing primary robotic arm-assisted THA. Impingement during specific flexion and extension stances was identified using the virtual range of motion (ROM) tool of the robotic software. The primary AI model, the Light Gradient-Boosting Machine (LGBM), used tabular data to predict impingement presence, direction (flexion or extension), and type. A secondary model integrating tabular data with plain anteroposterior pelvis radiographs was evaluated to assess for any potential enhancement in prediction accuracy.


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_15 | Pages 30 - 30
7 Aug 2024
Preece S Smith J Brookes N Ghio D
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Purpose. Cognitive Muscular Therapy (CMT) is a new treatment for low back pain which integrates psychological techniques for pain management alongside training to improve postural control. Rather than focus on postural alignment or strength, CMT aims to improve the regulation of postural tone (low-level activity which supports the body against gravity). This is achieved by teaching patients an awareness of compensatory paraspinal activation, which can be triggered by overactivity of the abdominal muscles. The aim of this study was to understand whether CMT could reduce symptoms associated with low back pain and improve paraspinal muscle activation. Methods and results. Fifteen patients with chronic low back pain received seven weekly sessions of CMT from a physiotherapist. Clinical data was captured at baseline and two weeks after the intervention using the Roland-Morris questionnaire and the pain catastrophising scale. Activation of the erector spinae muscle during walking was also measured at baseline and after the final intervention session. Change data were analysed using paired t-tests. There was a 75% reduction (p<0.001) in the Roland-Morris score from a mean (SD) of 9.3(2.9) to 2.3(2.6), along with a 78% reduction in pain catastrophising (p<0.002) from 16.6(13) to 3.7(4.8). Activation of the contralateral erector spinae muscles reduced by 30% (p<0.01) during the contralateral swing phase of walking. Conclusion. In this small sample, CMT delivered large clinical improvements and reduced activation of the low back muscles during walking. Larger randomised trials are now required to confirm whether CMT could outperform existing physiotherapy treatments for chronic back pain. Conflict of interest. No conflicts of interest. Source of funding. University of Salford


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_15 | Pages 41 - 41
7 Aug 2024
Pavlova A Cooper K Deane J Hart-Winks E Hemming R Johnson K
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Purpose and background. Nearly 70% of UK physiotherapists experience work-related musculoskeletal disorders (WRMSDs) during their career, with a significant proportion occurring in the back and being attributed to patient handling tasks. Evidence suggests that manual handling training alone is ineffective and interventions among nurses indicate that a tailored approach, including targeted exercise (TE), can reduce WRMSD rates. This study aimed to explore physiotherapists’ perspectives of WRMSDs, patient handling, and the role of TE in reducing WRMSDs among physiotherapists. Methods and Results. Key informant interviews were conducted with 4 physiotherapy operational leads and 1 manual handling trainer from NHS Grampian. Interviews were transcribed and Framework Analysis was utilised to identify key themes, including challenges, barriers, and facilitators. Following this, two online focus groups were conducted with 7 qualified NHS physiotherapists across the UK. Views of manual handling training varied across specialities, with some finding it comprehensive and adaptable, and others finding it less applicable to patients in their speciality or community setting. Physiotherapist views on fitness for work varied, with some highlighting the necessity of TE to ensure workforce health whilst others considered exercise to be a personal matter. Facilitators to implementation identified by participants were having support from management and a strong justification for the exercise content. Varied work schedules and facilities were identified as barriers to implementation of a work-based TE intervention. Conclusion. Varying perspectives on TE interventions and barriers to implementation were identified. This work will inform future research to develop TE interventions in consultation with key stakeholders. Conflicts of Interest. No conflicts of interest. Source of Funding. NHS Endowment Research Grant 22/001


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_15 | Pages 37 - 37
7 Aug 2024
Wilson M Cole A Hewson D Hind D Hawksworth O Hyslop M Keetharuth A Macfarlane A Martin B McLeod G Rombach I Swaby L Tripathi S Wilby M
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Background. Over 55,000 spinal operations are performed annually in the NHS. Effective postoperative analgesia facilitates early mobilisation and assists rehabilitation and hospital discharge, but is difficult to achieve with conventional, opioid-based, oral analgesia. The clinical and cost-effectiveness of two alternative techniques, namely intrathecal opioid and the more novel erector-spinae plane blockade, is unknown. The Pain Relief After Instrumented Spinal Surgery (PRAISE) trial aims to evaluate these techniques. Methods. PRAISE is a multicentre, prospective, parallel group, patient-blinded, randomised trial, seeking to recruit 456 adult participants undergoing elective, posterior lumbar-instrumented spinal surgery from up to 25 NHS hospitals. Participants will be randomised 1:1:1 to receive (1) Usual Care with local wound infiltration, (2) Intrathecal Opioid plus Usual Care with local wound infiltration or (3) Erector Spinae Plane blockade plus Usual Care with no local wound infiltration. The primary outcome is pain on movement on a 100mm visual analogue scale at 24 hours post-surgery. Secondary outcomes include pain at rest, leg pain, quality of recovery (QoR-15), postoperative opioid consumption, time to mobilisation, length of hospital stay, health utility (EQ-5D-5L), adverse events and resource use. Parallel economic evaluation will estimate incremental cost-effectiveness ratios. Results. Differences in the primary outcome at 24 hours will be estimated by mixed-effects linear regression modelling, with fixed effects for randomisation factors and other important prognostic variables, and random effects for centre, using the as-randomised population. Treatment effects with 95% confidence intervals will be presented. Conclusion. The study is due to open in May 2024 and complete in 2026. Conflicts of Interest. No conflicts of interest declared. Sources of Funding. NIHR Health Technology Award – grant number NIHR153170. Trial presentations so far. APOMP 2023 and 2024; RCOA conference, York, November 2023; Faculty of Pain Management training day, London, February 2024


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_15 | Pages 35 - 35
7 Aug 2024
Alotibi FS Hendrick P Moffatt F
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Background. Immersive virtual reality (VR) demonstrates potential benefits in patients with chronic low back pain (CLBP). However, few studies have investigated the feasibility and the acceptability of introducing immersive VR for use with patients with CLBP and in the Kingdom of Saudi Arabia (KSA). Aim. To investigate immersive VR's feasibility, tolerability, and acceptability as a rehabilitation intervention for adult patients with CLBP and explore the views of relevant Health Care Practitioners (HCPs) in the KSA. Methodology and Methods. A multi-centre, mixed-methods, explanatory sequential design was adopted to test immersive VR's feasibility, tolerability, and acceptability. An uncontrolled feasibility trial was conducted. The immersive VR intervention involved a training session followed by three sessions over one week using commercially available hardware and software. Feasibility outcomes were collected from patients immediately post-intervention. Patients and HCPs were recruited for semi-structured interviews. Results. Thirty-three patients and three HCPs were recruited. The feasibility a priori criteria were met for recruitment, retention, dropout, completeness of questionnaire data, treatment compliance and fidelity. Adverse events included one who reported aggravation of tinnitus, whereas two experienced dizziness. Qualitative data suggested that entertainment and motivation were key enablers. Barriers included technological capability and HCPs’ perceptions that immersive VR was time-consuming. Conclusion. The results suggested that immersive VR was feasible, acceptable, and tolerable among patients with CLBP and HCPs in clinical settings in the KSA. Further research focusing on the effectiveness is warranted in this field. Conflicts of Interest. None. Sources of Funding. None. Trial registration number. ISRCTN14434517


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_15 | Pages 9 - 9
7 Aug 2024
Evans DW
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Background. Disability is an important multifaceted construct. The aim of this study was to develop and evaluate a brief, generic self-reported disability questionnaire: the Universal Disability Index (UDI). Methods. Convenience sampling was used to collect general population data via an online survey. Data were randomly divided into training and validation subsets. The dimensionality and structure of eight UDI questionnaire items were evaluated using exploratory factor analysis (EFA, training subset) followed by confirmatory factor analysis (CFA, validation subset). To assess concurrent validity, the UDI summed score from the full dataset was compared to the Groningen Activity Restriction Scale (GARS) and the Graded Chronic Pain Scale (GCPS) disability scores. Internal consistency was also assessed. Results. 403 participants enrolled; 364 completed at least one UDI item. Three single-factor versions of the UDI were assessed (8-item, 7-item, and 6-item). All versions performed well during EFA and CFA (182 cases assigned to each), but none met the RMSEA (Root Mean Square Error of Approximation) criterion (≤ 0.08). All versions of the UDI had high internal consistency (Cronbach's α > 0.90) and were strongly correlated (Pearson's r > 0.7) with both GARS and GCPS disability scores, indicating concurrent validity. Conclusions. A brief, generic self-reported disability questionnaire was found to be valid and to possess good psychometric properties. The UDI has a single factor structure and either a 6-item, 7-item or 8-item version can be used to measure disability. For brevity and parsimony, the 6-item UDI is recommended, but further testing of all versions is warranted. Conflicts of interest. No conflicts of interest. Sources of funding. No funding obtained


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_15 | Pages 40 - 40
7 Aug 2024
Herbert T Malone M Rhind N Cooper K
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Background. Chronic pain is a significant burden and represents a major issue for world healthcare systems. Interventions include medication, surgery, pain management programmes, and social support through peer support groups. These groups are often informal, providing informational, emotional, and social support to members. The aim of this project is to co-produce guidance on how to establish a peer support programme for people living with chronic, non-cancer pain that is informed by evidence, theory, and stakeholder experience. Methods. This project is using Steps 1–4 of the Intervention Mapping (IM) approach to inform the research. Online workshops consisting of people living with chronic pain, third sector representatives, healthcare professionals, and researchers are being used to co-produce the guidance. Results. To date, 2 of the 4 planned workshops have been conducted. These have identified the needs of people living with chronic pain, goals for the peer support programme, and expectations of how a peer support programme should be executed. Topics for inclusion in the programme and their content have been identified, with further workshops to refine this planned. The final stage of this project will identify methods of delivery, specific resources that should be developed, and the training to be provided to peer support volunteers. Conclusion. The project has identified the diverse needs of people living with chronic pain and how these may be addressed by a peer support programme. It has identified flexible options that can be recommended to those who want to set up a programme and a variety content that may be included. Conflicts of Interest. None. Sources of Funding. Robert Gordon University


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_15 | Pages 42 - 42
7 Aug 2024
Annetts S Hemming R
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Background. Musculoskeletal disorders, including low back pain, affects 68% of UK physiotherapists across their career with patient handling considered a key risk factor. Manual handling training is mandatory for all allied health professionals, however there is limited research investigating whether professionals adopt recommended manual handling principles following training. Purpose of Study. To investigate spinal angles when facilitating sit-to-stand, and a turning manoeuvre in bed, comparing first-year physiotherapy students (who have not received manual handling training) with final-year physiotherapy students (who have received manual handling training). Methods. Cross-sectional pilot study (n= 20; 10 first-year, 10 final-year). All participants were exposed to a short training video outlining how to safely perform each manoeuvre. Retroreflective markers were attached to: L4, ASIS, PSIS, T12, C7, tragus and canthus. Spinal (neck, thoracic, lumbar and pelvic) angles were established via digital photographs using a bespoke MATLAB programme (MathWorks). A Mann-Whitney U test was conducted to determine between group differences. Results. No statistically significant results were observed between first-year and final-year students for both manoeuvres (p<0.05), except for neck angle during the turning manoeuvre (final-year students demonstrating more upright postures, p=0.037). Interestingly, for the turning manoeuvre in bed it was noted that none of the participants adjusted the bed height. Conclusion. The results suggest that clinical experience and routine manual handling training may not have a significant effect on spinal posture, especially in relation to pelvic, lumbar and thoracic angles. Further work is needed to understand how training relates to adoption of manual handling principles in practice. Conflicts of interest. None. Sources of funding. None


Orthopaedic Proceedings
Vol. 106-B, Issue SUPP_15 | Pages 25 - 25
7 Aug 2024
Nüesch A Kanelis E Alexopoulos L Williams F Geris L Gantenbein B Lacey M Breakwell L Maitre CL
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Introduction. Multiple studies have identified Cutibacterium acnes (C.acnes) and other microbes in intervertebral disc tissue using 16S DNA Sequencing and microbial cultures. However, it remains unclear whether these bacteria are native to the discs or result from perioperative contamination. Our study aimed to detect Gram-positive bacteria in non-herniated human disc samples and explore correlations with Toll-like receptors (TLR) 2, TLR4, NLRP3, and Gasdermin D. Methods. Immunohistochemical staining was conducted on 75 human IVD samples for Gram-positive bacteria, S. aureus, C.acnes, TLR2, TLR4, NLRP3, and Gasdermin D. Cell detection and classification were performed using QuPath. NP cells were treated with Lipopolysaccharide (LPS) and Peptidoglycan (PGN) in monolayer and alginate beads for up to 72 hours, followed by secretome analysis using Luminex. Statistical analysis included Kruskal-Wallis, Dunn's multiple comparison test, and Pearson correlation. Results. Immunohistochemical staining revealed Gram-positive bacteria exclusively within cells, with C. acnes positivity ranging from 5–99% and correlating with patient age (r=0.41, p= 0.007). TLR2 positivity ranged from 5–99% and TLR4 from 3–72%, showing a strong correlation (r= 0.62, p= 1.5e-006). Females with mid-degenerative grades exhibited significantly decreased TLR2 expression compared to those without degeneration signs. Treatment with LPS and PGN increased catabolic cyto- and chemokines associated with IVD degeneration. Conclusion. In conclusion, this study confirms Gram-positive bacteria presence in non-herniated human disc samples and highlights their role in triggering a catabolic response in disc cells. No conflicts of interest.  . Sources of funding. This project is part of the Disc4All Training network to advance integrated computational simulations in translational medicine, applies to intervertebral disc degeneration and funded by Horizon 2020 (H2020-MSCA-ITN-ETN-2020 GA: 955735)


Bone & Joint Open
Vol. 5, Issue 8 | Pages 637 - 643
6 Aug 2024
Abelleyra Lastoria DA Casey L Beni R Papanastasiou AV Kamyab AA Devetzis K Scott CEH Hing CB

Aims

Our primary aim was to establish the proportion of female orthopaedic consultants who perform arthroplasty via cases submitted to the National Joint Registry (NJR), which covers England, Wales, Northern Ireland, the Isle of Man, and Guernsey. Secondary aims included comparing time since specialist registration, private practice participation, and number of hospitals worked in between male and female surgeons.

Methods

Publicly available data from the NJR was extracted on the types of arthroplasty performed by each surgeon, and the number of procedures of each type undertaken. Each surgeon was cross-referenced with the General Medical Council (GMC) website, using GMC number to extract surgeon demographic data. These included sex, region of practice, and dates of full and specialist registration.


Bone & Joint 360
Vol. 13, Issue 4 | Pages 46 - 46
2 Aug 2024


Bone & Joint 360
Vol. 13, Issue 4 | Pages 7 - 9
2 Aug 2024
Monsell F


The Bone & Joint Journal
Vol. 106-B, Issue 8 | Pages 834 - 841
1 Aug 2024
French JMR Deere K Jones T Pegg DJ Reed MR Whitehouse MR Sayers A

Aims

The COVID-19 pandemic has disrupted the provision of arthroplasty services in England, Wales, and Northern Ireland. This study aimed to quantify the backlog, analyze national trends, and predict time to recovery.

Methods

We performed an analysis of the mandatory prospective national registry of all independent and publicly funded hip, knee, shoulder, elbow, and ankle replacements in England, Wales, and Northern Ireland between January 2019 and December 2022 inclusive, totalling 729,642 operations. The deficit was calculated per year compared to a continuation of 2019 volume. Total deficit of cases between 2020 to 2022 was expressed as a percentage of 2019 volume. Sub-analyses were performed based on procedure type, country, and unit sector.


The Bone & Joint Journal
Vol. 106-B, Issue 8 | Pages 764 - 774
1 Aug 2024
Rivera RJ Karasavvidis T Pagan C Haffner R Ast MP Vigdorchik JM Debbi EM

Aims

Conventional patient-reported surveys, used for patients undergoing total hip arthroplasty (THA), are limited by subjectivity and recall bias. Objective functional evaluation, such as gait analysis, to delineate a patient’s functional capacity and customize surgical interventions, may address these shortcomings. This systematic review endeavours to investigate the application of objective functional assessments in appraising individuals undergoing THA.

Methods

The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were applied. Eligible studies of THA patients that conducted at least one type of objective functional assessment both pre- and postoperatively were identified through Embase, Medline/PubMed, and Cochrane Central database-searching from inception to 15 September 2023. The assessments included were subgrouped for analysis: gait analysis, motion analysis, wearables, and strength tests.


The Bone & Joint Journal
Vol. 106-B, Issue 8 | Pages 871 - 878
1 Aug 2024
Pigeolet M Ghufran Syed J Ahmed S Chinoy MA Khan MA

Aims

The gold standard for percutaneous Achilles tendon tenotomy during the Ponseti treatment for idiopathic clubfoot is a tenotomy with a No. 15 blade. This trial aims to establish the technique where the tenotomy is performed with a large-bore needle as noninferior to the gold standard.

Methods

We randomized feet from children aged below 36 months with idiopathic clubfoot on a 1:1 basis in either the blade or needle group. Follow-up was conducted at three weeks and three months postoperatively, where dorsiflexion range, Pirani scores, and complications were recorded. The noninferiority margin was set at 4° difference in dorsiflexion range at three months postoperatively.


Bone & Joint Open
Vol. 5, Issue 7 | Pages 550 - 559
5 Jul 2024
Ronaldson SJ Cook E Mitchell A Fairhurst CM Reed M Martin BC Torgerson DJ

Aims

To assess the cost-effectiveness of a two-layer compression bandage versus a standard wool and crepe bandage following total knee arthroplasty, using patient-level data from the Knee Replacement Bandage Study (KReBS).

Methods

A cost-utility analysis was undertaken alongside KReBS, a pragmatic, two-arm, open label, parallel-group, randomized controlled trial, in terms of the cost per quality-adjusted life year (QALY). Overall, 2,330 participants scheduled for total knee arthroplasty (TKA) were randomized to either a two-layer compression bandage or a standard wool and crepe bandage. Costs were estimated over a 12-month period from the UK NHS perspective, and health outcomes were reported as QALYs based on participants’ EuroQol five-dimesion five-level questionnaire responses. Multiple imputation was used to deal with missing data and sensitivity analyses included a complete case analysis and testing of costing assumptions, with a secondary analysis exploring the inclusion of productivity losses.


Bone & Joint Open
Vol. 5, Issue 7 | Pages 534 - 542
1 Jul 2024
Woods A Howard A Peckham N Rombach I Saleh A Achten J Appelbe D Thamattore P Gwilym SE

Aims

The primary aim of this study was to assess the feasibility of recruiting and retaining patients to a patient-blinded randomized controlled trial comparing corticosteroid injection (CSI) to autologous protein solution (APS) injection for the treatment of subacromial shoulder pain in a community care setting. The study focused on recruitment rates and retention of participants throughout, and collected data on the interventions’ safety and efficacy.

Methods

Participants were recruited from two community musculoskeletal treatment centres in the UK. Patients were eligible if aged 18 years or older, and had a clinical diagnosis of subacromial impingement syndrome which the treating clinician thought was suitable for treatment with a subacromial injection. Consenting patients were randomly allocated 1:1 to a patient-blinded subacromial injection of CSI (standard care) or APS. The primary outcome measures of this study relate to rates of recruitment, retention, and compliance with intervention and follow-up to determine feasibility. Secondary outcome measures relate to the safety and efficacy of the interventions.


The Bone & Joint Journal
Vol. 106-B, Issue 7 | Pages 688 - 695
1 Jul 2024
Farrow L Zhong M Anderson L

Aims. To examine whether natural language processing (NLP) using a clinically based large language model (LLM) could be used to predict patient selection for total hip or total knee arthroplasty (THA/TKA) from routinely available free-text radiology reports. Methods. Data pre-processing and analyses were conducted according to the Artificial intelligence to Revolutionize the patient Care pathway in Hip and knEe aRthroplastY (ARCHERY) project protocol. This included use of de-identified Scottish regional clinical data of patients referred for consideration of THA/TKA, held in a secure data environment designed for artificial intelligence (AI) inference. Only preoperative radiology reports were included. NLP algorithms were based on the freely available GatorTron model, a LLM trained on over 82 billion words of de-identified clinical text. Two inference tasks were performed: assessment after model-fine tuning (50 Epochs and three cycles of k-fold cross validation), and external validation. Results. For THA, there were 5,558 patient radiology reports included, of which 4,137 were used for model training and testing, and 1,421 for external validation. Following training, model performance demonstrated average (mean across three folds) accuracy, F1 score, and area under the receiver operating curve (AUROC) values of 0.850 (95% confidence interval (CI) 0.833 to 0.867), 0.813 (95% CI 0.785 to 0.841), and 0.847 (95% CI 0.822 to 0.872), respectively. For TKA, 7,457 patient radiology reports were included, with 3,478 used for model training and testing, and 3,152 for external validation. Performance metrics included accuracy, F1 score, and AUROC values of 0.757 (95% CI 0.702 to 0.811), 0.543 (95% CI 0.479 to 0.607), and 0.717 (95% CI 0.657 to 0.778) respectively. There was a notable deterioration in performance on external validation in both cohorts. Conclusion. The use of routinely available preoperative radiology reports provides promising potential to help screen suitable candidates for THA, but not for TKA. The external validation results demonstrate the importance of further model testing and training when confronted with new clinical cohorts. Cite this article: Bone Joint J 2024;106-B(7):688–695