Proximal humeral fracture morphology in patients with advanced cuff tear arthropathy: an observational study in a surgically treated cohort.

摘要: BACKGROUND In the presence of cuff tear arthropathy (CTA), joint kinematics is alternated and fracture configuration might be different. The purpose this study was to identify patterns in patients with advanced CTA facilitate recognition treatment. METHODS Radiographs computed tomography scans all undergoing surgical treatment for a proximal humeral (PHF) our institution during 5-year period were retrospectively analyzed. Fracture pattern according AO-OTA Resch classification evaluated. Glenoid Walch, fatty atrophy supraspinatus muscle centrum-collum-diaphyseal (CCD) angle RESULTS A total 574 out 713 included. Twenty-three (4%) mean age 82 ± 8 years showed acetabularization acromion (≥ stage 3 Hamada/Fukuda). There exclusively valgus fractures CCD 158° ± 18°. Patients CTA ≥ grade had nearly twofold greater risk (risk ratio: 1.8; confidence interval (CI): 95% 1.6-1.9; p < 0.0001) sustaining compared without or CTA < grade 3. tuberosity mild 1.68; 1.17-2.40; p = 0.0046) those CTA. CONCLUSION CTA, predominantly can observed. addition, significantly less frequent rarely displaced. Up date, no system PHF has been developed setting although it indicate different treatment, therefore, crucial. However, when present, changes ability treat as rotator longer utilized means reducing fragments.