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Published in: MUSCULOSKELETAL SURGERY 2/2017

01-12-2017 | Original Article

Retroverted glenoid reconstruction using glenoid plate in reverse shoulder arthroplasty

Authors: R. Lanzone, S. Carbone, P. Albino, J.-B. Cassio, P. Métais

Published in: MUSCULOSKELETAL SURGERY | Special Issue 2/2017

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Abstract

Purpose

The objective of this study is to evaluate the clinical and radiological results of reverse shoulder arthroplasty (RSA) with glenoid plating in a consecutive series of patients affected by cuff tear glenohumeral arthropathy with glenoid retroversion >15°. We hypothesized that autologous humeral head graft may be better stabilized between the baseplate and the native glenoid surface with the use of a glenoid plate.

Methods

Twenty consecutive patients affected by cuff tear arthropathy with glenoid retroversion >15° (B2 or C according to Walch classification) were enrolled in this study. To reconstruct the glenoid, a dedicated plate was used in addition to the standard reverse shoulder baseplate and the glenosphere. Clinical and radiological assessment was performed using constant score (CS), subjective shoulder value (SSV), X-rays and CT scan at 6, 12 and 24 months of follow-up. Healing and resorption of the graft and detection of the glenoid version were assessed.

Results

Sixteen patients were available for final follow-up. The mean preoperative retroversion of the glenoid was 24°, while the post-op was 2° (p = 0.002). At 24 months of follow-up, mean CS and SSV were 61 and 70. Respect to preoperative scores, the results were statistically significant (p < 0.001). The last CT scan revealed: a complete healing of the graft in 100% of cases; graft resorption less than 25% in two patients (12.5%); glenoid retroversion of 4°. A negative statistically significant correlation was found between final CS and preoperative glenoid retroversion (0.039).

Conclusions

The present study reports the favorable outcomes of retroverted glenoid reconstruction with glenoid plates in RSA, an alternative method to address severe glenoid deficiency.

Level of evidence

Level IV, case series with no comparison group.
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Metadata
Title
Retroverted glenoid reconstruction using glenoid plate in reverse shoulder arthroplasty
Authors
R. Lanzone
S. Carbone
P. Albino
J.-B. Cassio
P. Métais
Publication date
01-12-2017
Publisher
Springer Milan
Published in
MUSCULOSKELETAL SURGERY / Issue Special Issue 2/2017
Print ISSN: 2035-5106
Electronic ISSN: 2035-5114
DOI
https://doi.org/10.1007/s12306-017-0481-0

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