Abstract
Purpose
Unrecognized posterior shoulder dislocation with a concomitant humeral head fracture affects joint function and no consensus exists regarding treatment. The present study analyses clinical and radiographic outcomes of a novel arthroscopic technique for reducing chronic locked posterior shoulder dislocation associated with subscapularis remplissage.
Methods
The study comprises a retrospective analysis of consecutive chronic posterior locked shoulders (CPLS) with minimum 2-years follow-up of patients who had undergone McLaughlin technique arthroscopic modification for the treatment of CPLS with a reverse Hill–Sachs lesion. Active range of motion (ROM), Western Ontario (WOSI) and Constant Score (CS), were evaluated pre- and postoperatively. Plain radiographs and magnetic resonance imaging (MRI) scans were collected pre- and post-operatively, recording bone defect, osteoarthritis, cuff integrity/fatty infiltration, and the grade of filling of the reverse Hill-Sachs.
Results
Twelve male patients with a mean follow-up of 37.3 months ± 10.5 (range, 24–58) were included. Mean WOSI and CS scores improved from 41 to 92 and 28 to 94 points, respectively. ROM measurements all had significantly increased at final follow-up, with no significant differences in arm rotation. No defects were left unfilled at final MRI examination.
Conclusion
The results of this uncontrolled study with a limited number of patients confirm that arthroscopic reduction and subscapularis remplissage is a highly effective and satisfactory treatment method resulting in no shoulder rotation deficits.
Level of evidence
Level IV.
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The authors, A.M.R., T.B.E., G.N., P.C., A.D.G., M.Z., M.S., and F.A., declare that they have not conflicts of interest.
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The study was approved by Institutional Review Board of ethical committee of Campolongo Hospital (ID 2019–06). This project does not infringe the Italian ethical rules and the privacy of the patients.
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Romano, A.M., Edwards, T.B., Nastrucci, G. et al. Arthroscopic reduction and subscapularis remplissage (ARR) of chronic posterior locked shoulder dislocation leads to optimized outcomes and low rate of complications. Knee Surg Sports Traumatol Arthrosc 29, 2348–2355 (2021). https://doi.org/10.1007/s00167-020-06317-6
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DOI: https://doi.org/10.1007/s00167-020-06317-6