ArticleBMC musculoskeletal disorders2025
The duration of dislocation is the most important prognostic factor in chronic locked posterior shoulder dislocations treated with the modified McLaughlin surgical procedure: a multicentre study.
Article in BMC musculoskeletal disorders, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- From reduction to replacement: a reconstructibility-based framework for chronic locked shoulder dislocations.International orthopaedics · 2026Review
- [Treatment of acute, first-time posterior shoulder instability].Orthopadie (Heidelberg, Germany) · 2026Review
- [Chronic posterior locked shoulder dislocation-When should the joint be preserved and when should it be replaced?]Orthopadie (Heidelberg, Germany) · 2026Review
- Modified McLaughlin procedure combined with proximal humeral locking plate for proximal humeral fractures with posterior shoulder dislocation and reverse Hill-Sachs lesion: a retrospective case series.Frontiers in surgery · 2026Article
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6 authors.
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Abstract
backgroundThe diagnosis of posterior shoulder dislocation (PSD) is often overlooked as these injuries are not common, since clinical signs may be subtle and easily overlooked unless specifically evaluated. This study aimed to determine the factors related to clinical outcomes in patients with chronic locked PSD treated with the modified McLaughlin procedure.
methodsThe study included 22 patients from 5 different clinics who were diagnosed with chronic (> 6 weeks) locked PSD and underwent the modified McLaughlin procedure. The pre- and postoperative values of shoulder forward flexion, abduction, and external rotation were recorded for each patient. At the final follow-up examination, the patient-reported clinical outcomes were evaluated through Constant-Murley Score (CMS), the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire, and the University of California-Los Angeles (UCLA) shoulder scale. Defect depth and defect angle were measured on axial computed tomography sections.
resultEvaluation was made of 14 males and 8 females aged 25-58 years. The mean time interval between the dislocation and surgery was 18.4 ± 7.4 weeks. The postoperative scale scores were DASH mean 17.1 ± 5.6, CMS median 70.0 [35.0-83.0] and UCLA shoulder scale mean 25.5 ± 6.6. Strong to excellent correlations were determined between the functional scores and the duration of dislocation. Regardless of age, gender, depth and degree of the defect, and immobilization duration, the duration of dislocation (weeks) was associated with the DASH score (beta:0.513, 95% CI:0.931-7.528, p = 0.015), CMS (beta: -0.916, 95% CI: -1.959 to -1.293, p < 0.001), and the UCLA shoulder scale (beta: -0.899, 95% CI: 0.983 to -0.618, p < 0.001).
conclusionIn patients with locked PSD, the primary factor influencing clinical outcomes is the duration of the dislocation, rather than humeral head defect size or patient age. PSD should be suspected in patients with shoulder trauma who present with limitations in forward flexion and abduction.
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