Vol. 11, Issue 3 (2025)
Complication rates and healing trends in intertrochanteric fractures managed with dynamic hip screw
Aynun Nahar Rabeya Diba, Aminur Rasul, Md. Nazrul Islam, Md. Golam Shaikh Ferdous, Debashish Dey, Md. Saifuzzahan, Fariha Al-Nisa and Mst. Naznin Sultana
Background: Intertrochanteric fractures are among the most common hip fractures in elderly populations, often resulting in significant morbidity and functional limitations. The Dynamic Hip Screw (DHS) is widely used for fixation; however, complications such as screw cut-out, delayed union, and impaired functional recovery remain concerns, particularly in unstable fractures.
Aim of the study: To evaluate complication rates, radiological healing patterns, functional outcomes, and predictors of surgical failure in patients with intertrochanteric fractures treated with DHS.
Methods: A quasi-experimental study was conducted at a tertiary care center from September 2022 to September 2024. Twenty-six patients with Kyle Type 1 (n=14) and Type 2 (n=12) intertrochanteric fractures underwent DHS fixation. Demographic, clinical, and operative data were collected, including tip-apex distance (TAD), quality of reduction, and lag screw position. Postoperative outcomes assessed were complications, radiological union, delayed union (>20 weeks), non-union (at 6 months), and functional recovery measured by Harris Hip Score (HHS). Statistical analyses included t-tests, chi-square/Fisher’s exact tests, and relative risk calculations, with p<0.05 considered significant.
Result: The mean age was 67.7±10.3 years; 61.5% were female. Superficial wound infection occurred in 7-8% of patients; screw cut-out occurred only in Type 2 fractures (16.7%). Type 1 fractures demonstrated significantly faster union (12.4±2.3 vs. 16.2±3.1 weeks; p=0.002) and higher HHS (85.6±7.2 vs. 74.8±9.5; p=0.004). TAD >25 mm, poor reduction, and non-central lag screw placement were significant predictors of complications.
Conclusion: DHS provides reliable fixation with satisfactory healing and functional outcomes in stable intertrochanteric fractures. Optimal reduction and implant positioning are essential to minimize complications, especially in unstable fractures.
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