• Eileen Kerkhoff, Christopher Ull, Valentin Rausch, Maria Alexandra Bernstorff, Dominik Seybold, Thomas Armin Schildhauer, and Matthias Königshausen.
• Berufsgenossenschaftliches Universitätsklinikum Bergmannsheil, Bürkle de La Camp-Platz 1, 44789, Bochum, Germany. Eileen.mempel@gmx.de.
• Arch Orthop Trauma Surg. 2024 Nov 1; 144 (11): 489949064899-4906.

IntroductionThe combination of anterior large glenoid rim fractures (GRF) and proximal humerus fractures (PHF) is rare, with limited data available on specific treatments for these glenohumeral combination fractures (GCF). This study aimed to evaluate the treatment approaches for GCF, analyze patient outcomes, and outline surgical management strategies for different fracture types.Materials And MethodsThis retrospective study included patients with GCF, excluding those with fossa glenoidalis fractures, isolated greater tuberosity fractures, or small glenoid rim fractures (< 5 mm). Preoperative radiographs, CT scans, and follow-up radiographs were reviewed. Clinical outcomes were assessed using the Constant-Murley Score (CMS), Western Ontario Shoulder Instability Index (WOSI), Rowe Score (RS), and Oxford Shoulder Score (OSS).ResultsSixteen patients with 17 GCFs (mean age 62 years) were followed for an average of 39 months. PHFs were categorized into three-part (76%), four-part (12%), and two-part fractures (12%). The average medial displacement of GRF was 5 mm, with an average dehiscence of 4 mm in the sagittal plane. Fourteen patients (88%) underwent surgical treatment; 35% had only the PHF surgically addressed, while 53% had both lesions surgically treated. Two patients (12%) received non-operative treatment. Complications were observed in 29% of cases, primarily involving the humeral side. The average CMS was 68 points, WOSI was 75%, RS was 77 points, and OSS was 41 points.ConclusionTreating GCF is complex and routinely necessitates surgical intervention, with or without GRF refixation. CT imaging is crucial for precise assessment of fracture morphology. The involvement of the minor tuberosity is critical in selecting the optimal surgical approach and managing the subscapularis muscle.© 2024. The Author(s).

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