Scapular fractures osteosynthesis via Judet's posterior approach: clinical and radiographic results.

Abstract

Scapular fractures are uncommon and mainly treated nonoperatively. Judet's posterior approach allows access to the fracture site through the infraspinatus fossa and may be a technical option when ORIF is decided. The aims of this study were to determine clinical and radiographic outcomes of patients who underwent scapular body and/or glenoid fractures fixation via Judet's posterior approach. We conducted a retrospective single-centre study, and all patients admitted for scapular fracture who underwent osteosynthesis via Judet's approach between January 2014 and September 2021 were included. At a minimum follow-up of oneyear, clinical outcomes were analyzed through subjective shoulder value (SSV) and Constant-Murley score (CMS). Strength in external rotation was measured in adduction and in 90° abduction and compared to healthy side. Radiographic analysis evaluated postoperative fracture reduction on CT scan and glenohumeral osteoarthritis according to Samilson's classification at last follow-up. Twenty-one patients were included with a mean follow-up of 44.9months. Mean SSV, CMS, and adjusted CMS were 73.8% ± 21.0, 65.8 points ± 19.5, and 72.8% ± 20.8, respectively. Strength in external rotation in adduction of the affected shoulder showed significant impairment when compared with the contralateral side (respectively 7.79kg ± 4.29 and 12.0kg ± 3.84, p = 0.02). All fractures healed uneventfully, but five patients (23.8%) required early revision surgery for intra-articular screws in three. Intra-articular gap measure decreased from 3.75mm ± 1.93 in preoperative to 0.59mm ± 0.97 after ORIF. The rate of arthritis was 15% at last follow-up. Patients who underwent scapular fracture osteosynthesis via Judet's posterior approach exhibited satisfactory but incomplete recovery of the affected shoulder as evidenced by functional scores and external rotation strength measurements at a mean follow-up of 44.9months. Because of the risk of intra-articular screws, postoperative CT scan is mandatory.