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  • Title: Salvage reverse total shoulder arthroplasty for failed operative treatment of proximal humeral fractures in patients younger than 60 years: long-term results.
    Author: Ernstbrunner L, Rahm S, Suter A, Imam MA, Catanzaro S, Grubhofer F, Gerber C.
    Journal: J Shoulder Elbow Surg; 2020 Mar; 29(3):561-570. PubMed ID: 31594724.
    Abstract:
    HYPOTHESIS: Is salvage reverse total shoulder arthroplasty (RTSA) a justifiable treatment for failed operative treatment (open reduction-internal fixation [ORIF] or primary and secondary hemiarthroplasty) of proximal humeral fractures in patients younger than 60 years? METHODS: Thirty patients (mean age, 52 years; age range, 30-59 years) were reviewed after a mean follow-up period of 11 years (range, 8-18 years). Of the patients, 7 (23%) underwent RTSA for failed ORIF and 23 (77%) for failed hemiarthroplasty. Clinical and radiographic outcomes were assessed longitudinally. RESULTS: At final follow-up, the mean relative Constant score had improved from 25% (±12%) to 58% (±21%, P < .001). Significant improvements were seen in the mean Subjective Shoulder Value (20% to 56%), active elevation (45° to 106°), abduction (42° to 99°), pain scores, and strength (P < .001). Clinical outcomes did not significantly deteriorate over a period of 10 years. Patients with salvage RTSA for failed secondary hemiarthroplasty (n = 8) vs. those for failed ORIF (n = 6) showed significantly inferior active abduction (77° vs. 116°, P = .023). Patients with a healed greater tuberosity (n = 9) showed significantly better external rotation than patients with a resorbed/resected greater tuberosity (n = 13, 21° vs. 3°, P = .025). One or more complications occurred in 18 shoulders (60%), and 6 (20%) resulted in explantation of the RTSA. CONCLUSIONS: Salvage RTSA in patients younger than 60 years is associated with a high complication rate. It leads nonetheless to substantial and durable improvement beyond 10 years, provided the complications can be handled with implant retention. Inferior shoulder function is associated with greater tuberosity resorption or resection and inferior overhead elevation with the diagnosis of failed hemiarthroplasty.
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