Ion-Andrei Popescu1, Thomas Bihel2, Daniel Henderson2, Javier Martin Becerra2, Jens Agneskirchner3, Laurent Lafosse2. 1. Alps Surgery Institute, Clinique Générale d'Annecy, Annecy, France; go:h Gelenkchirurgie Orthopädie Hannover, Hannover, Germany; Hannover Medical School, Hannover, Germany. Electronic address: ionandrei.popescu@yahoo.com. 2. Alps Surgery Institute, Clinique Générale d'Annecy, Annecy, France. 3. go:h Gelenkchirurgie Orthopädie Hannover, Hannover, Germany; Hannover Medical School, Hannover, Germany.
Abstract
HYPOTHESIS: This study investigated the hypothesis that reverse total shoulder arthroplasty (RSA) in combination with an isolated latissimus dorsi tendon (LDT) transfer in patients with pseudoparalysis of abduction and external rotation (combined loss of active elevation and external rotation [CLEER] syndrome) would demonstrate improved postoperative functional results. METHODS: This study was a retrospective single-surgeon case series of 13 consecutive patients with CLEER who underwent RSA without subscapularis repair and combined with an isolated LDT transfer. We reviewed 10 patients (77%), at a minimum of 2 years, with 3 cases lost to follow-up. Shoulder function was assessed preoperatively and postoperatively using the Constant score and postoperatively using the Oxford Shoulder Score, University of California-Los Angeles score, American Shoulder and Elbow Surgeons score, ADLEIR (activities of daily living [ADLs] requiring active external and internal rotation) score, and ADLIR (ADLs requiring active internal rotation) score. Force in internal rotation (IR) at 0° of abduction, external rotation (ER) at 0° of abduction, and ER at 90° of abduction, as well as IR in the belly-press position, was measured. RESULTS: The mean postoperative follow-up period was 57 months (range, 31-85 months). We observed improvement in the Constant score (from 29.8 ± 6.64 preoperatively to 71.9 ± 10.45 postoperatively, P < .05), as well as abduction force, ER, and forward elevation (P < .05). Postoperatively, the mean American Shoulder and Elbow Surgeons score was 95.1 ± 3.38 and the mean Oxford Shoulder Score was 46.6 ± 1.57. Mean force in IR at 0° of abduction was 5.45 ± 2.42 kg, and mean force in ER at 90° of abduction was 4 ± 1.20 kg. Mean force in ER at 0° of abduction (3.65 ± 1.24 kg) and IR in the belly-press position (4.5 ± 2.84 kg) demonstrated a positive correlation with ADLs. CONCLUSIONS: The results of this study demonstrate that RSA without subscapularis repair, combined with an isolated LDT transfer, provides improved postoperative functional outcomes for patients with CLEER while maintaining sufficiently balanced force in IR and ER to effectively perform ADLs.
HYPOTHESIS: This study investigated the hypothesis that reverse total shoulder arthroplasty (RSA) in combination with an isolated latissimus dorsi tendon (LDT) transfer in patients with pseudoparalysis of abduction and external rotation (combined loss of active elevation and external rotation [CLEER] syndrome) would demonstrate improved postoperative functional results. METHODS: This study was a retrospective single-surgeon case series of 13 consecutive patients with CLEER who underwent RSA without subscapularis repair and combined with an isolated LDT transfer. We reviewed 10 patients (77%), at a minimum of 2 years, with 3 cases lost to follow-up. Shoulder function was assessed preoperatively and postoperatively using the Constant score and postoperatively using the Oxford Shoulder Score, University of California-Los Angeles score, American Shoulder and Elbow Surgeons score, ADLEIR (activities of daily living [ADLs] requiring active external and internal rotation) score, and ADLIR (ADLs requiring active internal rotation) score. Force in internal rotation (IR) at 0° of abduction, external rotation (ER) at 0° of abduction, and ER at 90° of abduction, as well as IR in the belly-press position, was measured. RESULTS: The mean postoperative follow-up period was 57 months (range, 31-85 months). We observed improvement in the Constant score (from 29.8 ± 6.64 preoperatively to 71.9 ± 10.45 postoperatively, P < .05), as well as abduction force, ER, and forward elevation (P < .05). Postoperatively, the mean American Shoulder and Elbow Surgeons score was 95.1 ± 3.38 and the mean Oxford Shoulder Score was 46.6 ± 1.57. Mean force in IR at 0° of abduction was 5.45 ± 2.42 kg, and mean force in ER at 90° of abduction was 4 ± 1.20 kg. Mean force in ER at 0° of abduction (3.65 ± 1.24 kg) and IR in the belly-press position (4.5 ± 2.84 kg) demonstrated a positive correlation with ADLs. CONCLUSIONS: The results of this study demonstrate that RSA without subscapularis repair, combined with an isolated LDT transfer, provides improved postoperative functional outcomes for patients with CLEER while maintaining sufficiently balanced force in IR and ER to effectively perform ADLs.
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