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. 2025 Mar 19;35(1):125.
doi: 10.1007/s00590-025-04227-2.

Reverse shoulder arthroplasty for proximal humerus fracture: does tuberosity reinsertion improve the functional outcomes more than 5 years after surgery?

Noémie Allio  1   2 , Thomas Amouyel  3   4 , Marc Saab  3   5 , Christophe Chantelot  3   5
Affiliations

Reverse shoulder arthroplasty for proximal humerus fracture: does tuberosity reinsertion improve the functional outcomes more than 5 years after surgery?

Noémie Allio et al. Eur J Orthop Surg Traumatol. .

Abstract

Introduction: While tuberosity reinsertion significantly improves the short-term functional outcomes of reverse shoulder arthroplasty done for proximal humerus fracture, we do not know how well these results hold over the long term. The objective of this study was to analyze the effect of tuberosity reinsertion on the quality of life of patients and the functional outcomes of the operated limb after a minimum follow-up of 5 years.

Methods: Sixty-two patients were included. Their mean age at the final review was 79 ± 10 years. The Katz and Lawton scales, Constant score, DASH and SSV were collected. Radiographs were made at the final assessment to analyze the position of the tuberosities and to look for radiological signs of implant loosening.

Results: The mean follow-up was 6.7 ± 1.5 years. The tuberosities had been reinserted in 35 patients (56%). There were no statistically significant differences between groups in the Katz (p = 0.60) and Lawton (p = 0.49) scales, nor the DASH (p = 0.45) or SSV (p = 0.49) at the final review. The Constant score was significantly better in the patients who had their tuberosities reinserted (p = 0.01), also the active forward flexion (p = 0.02), the internal rotation (p = 0.01), and the external rotation arm abduction (p = 0.02), but there was no significant difference for external rotation elbow at side (p = 0.14). None of the patients underwent revision surgery for implant loosening.

Conclusion: Tuberosity reinsertion has a functional benefit beyond 5 years postoperative, although it does not appear to have a significant effect on the geriatric outcomes or the subjective clinical scores. The patients regained satisfactory independence for an orthogeriatric population.

Level of evidence: Level IV-Retrospective study.

Keywords: Constant score; Geriatric evaluation; Reverse shoulder arthroplasty; Tuberosities.

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Conflict of interest statement

Declarations. Conflict of interest: The authors declare no conflict of interest related directly to this work. Outside this study: MS: Associate Editor for Orthopaedics & Traumatology: Surgery & Research, Consulting for Quanta Medical VCLS™ and Cousin Surgery™. Generative AI and AI-assisted technologies in the writing process: No artificial intelligence software was used.

Figures

Fig. 1
Fig. 1
Flow chart
Fig. 2
Fig. 2
Postoperative radiographs: tuberosities reinserted (left image) or not reinserted (right image)
Fig. 3
Fig. 3
AP radiographs of a left shoulder showing osteolysis of the tuberosities: 1-month radiograph (left image) and 5-year radiograph (right image) showing greater tuberosity osteolysis
Fig. 4
Fig. 4
Loosening of glenoid implant
Fig. 5
Fig. 5
Periprosthetic fracture treated by plate fixation with cerclage wire
See this image and copyright information in PMC

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