Vol. 11, Issue 2 (2025)

Introduction: Lateral clavicular fractures account for approximately 10-15% of all clavicle fractures and are particularly prone to nonunion due to inherent instability. Locking plate fixation has emerged as a reliable treatment option, offering superior biomechanical stability. This study evaluates the functional outcomes of lateral clavicular fractures (Neer type II) treated with locking plate osteosynthesis.

Materials and Methods: A prospective study was conducted on 46 patients with displaced lateral clavicular fractures (Neer type II) treated with locking plate fixation. Functional outcomes were assessed using the Constant-Murley Score (CMS) and Disabilities of the Arm, Shoulder, and Hand (DASH) score at 6 weeks, 3 months, and 6 months postoperatively. Radiological union and complications (infection, implant failure, nonunion) were recorded.

Results: The mean CMS improved significantly from 48.3 ± 5.9 at 6 weeks to 89.1 ± 4.7 at 6 months. The mean DASH score decreased from 35.4 ± 6.8 (6 weeks) to 7.9 ± 2.5 (6 months). Radiological union was achieved in 93.5% (43/46) of cases by 12 weeks. Complications included superficial infection (n=2, 4.3%) and implant irritation (n=3, 6.5%), with no cases of nonunion or hardware failure.

Conclusion: Locking plate fixation for lateral clavicular fractures provides excellent functional outcomes, high union rates, and low complication rates, making it a reliable treatment option for unstable lateral clavicle fractures.