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Shoulder arthroplasty in osteoarthritis: correlation between function and radiographic parameters
Mauro Emilio Conforto Gracitelli1, Fernando Aires Duarte1, Rogerio Padovani Toffoli1
1Institute of Orthopedics and Traumatology, Hospital das Clínicas, Faculdade de Medicina da Universidade de São Paulo, São Paulo, SP, Brazil.
Acta Ortopedica Brasileira
|January 24, 2014
Summary
Shoulder arthroplasty significantly improves patient function, but superior humerus migration correlates with worse outcomes. This study evaluates radiographic parameters and functional results after shoulder replacement surgery.
Area of Science:
- Orthopedic surgery
- Radiology
- Biomedical engineering
Background:
- Osteoarthritis of the shoulder often necessitates surgical intervention.
- Shoulder arthroplasty aims to restore function and alleviate pain.
- Radiographic assessment is crucial for evaluating implant positioning and potential complications.
Purpose of the Study:
- To determine the relationship between radiographic measurements and functional outcomes in shoulder arthroplasty patients.
- To assess the functional results of shoulder arthroplasty at an institutional level.
Main Methods:
- Retrospective analysis of 21 patients (22 shoulders) undergoing shoulder arthroplasty (1998-2010) with ≥12 months follow-up.
- Clinical assessment included range of motion, Constant-Murley, UCLA, and VAS scores.
- Preoperative and postoperative radiographic parameters were analyzed, including humerus migration and component positioning.
Main Results:
- Significant improvements were observed in flexion, abduction, external rotation, Constant-Murley, UCLA, and VAS scores post-surgery.
- Superior migration of the humerus demonstrated a significant correlation with worse UCLA and Constant-Murley scores (p=0.0480 and p=0.0110).
- No other radiographic parameters correlated significantly with clinical outcomes.
Conclusions:
- Superior humerus migration after shoulder arthroplasty is associated with diminished clinical outcomes.
- Radiographic monitoring, particularly for humerus migration, is important in managing patients post-shoulder arthroplasty.
