Xavier Ohl1, Nicolas Bonnevialle2, David Gallinet3, Nassima Ramdane4, Philippe Valenti5, Lauryl Decroocq6, Pascal Boileau6. 1. Orthopaedic Department, University Hospital, Reims, France. 2. Department of Orthopaedic Surgery, Riquet Hospital, University of Toulouse, Toulouse, France. Electronic address: nicolasbonnevialle@yahoo.fr. 3. Saint Vincent Private Hospital, Besançon, France. 4. Unité de Méthodologie-Biostatistique et Data Management, Lille, France. 5. Paris Shoulder Institut, Paris, France. 6. Department of Orthopaedic Surgery, iULS (Institut Universitaire Locomoteur & Sport), University of Nice Sophia Antipolis, Nice, France.
Abstract
BACKGROUND: Our purpose was to evaluate the clinical and radiologic outcomes of reverse shoulder arthroplasty for proximal humeral fractures in a large cohort of elderly patients and compare the results in the case of tuberosity excision, failed fixation, or anatomic healing. METHODS: In this retrospective multicenter study, 420 patients underwent review and radiography with a minimum follow-up period of 12 months. The patients were divided into 3 groups according to the status of the greater tuberosity (GT) on the last anteroposterior radiographs: anatomic GT healing (group A, n = 169); GT resorption, malunion, or nonunion (group B, n = 131); and GT excision (group C, n = 120). Complications were recorded; shoulder function, active mobility, and subjective results were assessed. RESULTS: At a mean follow-up of 28 months, the mean Simple Shoulder Value in group A (75%) outperformed the results found in groups B (69%, P < .001) and C (56%, P < .001). Overall, the mean adjusted Constant-Murley score was significantly higher in group A (93% ± 22%) than in group B (82% ± 22%) and group C (80% ± 24%) (P < .001), but there was no difference between groups B and C (P = .88). Anterior active elevation and external rotation were significantly better in group A than in groups B and C (P < .001). The instability rate was significantly higher in group C (n = 15 [12.5%], P < .001) than in group A (n = 2) or group B (n = 3). CONCLUSION: In elderly patients who have undergone a reverse shoulder arthroplasty for acute proximal humeral fractures, anatomic tuberosity healing improves objective and subjective outcomes. GT excision is associated with the worst functional results and increases the risk of postoperative shoulder instability.
BACKGROUND: Our purpose was to evaluate the clinical and radiologic outcomes of reverse shoulder arthroplasty for proximal humeral fractures in a large cohort of elderly patients and compare the results in the case of tuberosity excision, failed fixation, or anatomic healing. METHODS: In this retrospective multicenter study, 420 patients underwent review and radiography with a minimum follow-up period of 12 months. The patients were divided into 3 groups according to the status of the greater tuberosity (GT) on the last anteroposterior radiographs: anatomic GT healing (group A, n = 169); GT resorption, malunion, or nonunion (group B, n = 131); and GT excision (group C, n = 120). Complications were recorded; shoulder function, active mobility, and subjective results were assessed. RESULTS: At a mean follow-up of 28 months, the mean Simple Shoulder Value in group A (75%) outperformed the results found in groups B (69%, P < .001) and C (56%, P < .001). Overall, the mean adjusted Constant-Murley score was significantly higher in group A (93% ± 22%) than in group B (82% ± 22%) and group C (80% ± 24%) (P < .001), but there was no difference between groups B and C (P = .88). Anterior active elevation and external rotation were significantly better in group A than in groups B and C (P < .001). The instability rate was significantly higher in group C (n = 15 [12.5%], P < .001) than in group A (n = 2) or group B (n = 3). CONCLUSION: In elderly patients who have undergone a reverse shoulder arthroplasty for acute proximal humeral fractures, anatomic tuberosity healing improves objective and subjective outcomes. GT excision is associated with the worst functional results and increases the risk of postoperative shoulder instability.
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