A comparative study of treatment outcomes of femur neck fracture with dynamic hip screws versus multiple cancellous cannulated screws

Background: Dynamic hip screws (DHS) and multiple cannulated cancellous screws (MCCS) are commonly used in anatomic reduction of femur neck fractures. However, there is limited information on the complications of various fixation methods. Objective: To assess the outcome of two different modalities of femur neck fracture fixation. Methodology: This prospective, randomized, comparative interventional study included 32 subjects with recent trauma. Patients were randomized to DHS and MCCS treatment groups (16 patients each). Post-surgical radiographs were obtained and clinical evaluation for deformities was performed using the Harris hip score (HHS). The duration of surgery, average blood loss, and complications were noted and assessed. Chi-square test was used to check the association between attributes. Two-sample t-test was employed to compare the mean between two groups. P≤0.05 indicated statistical significance. Results: A significant difference (p<0.001) between the 2 groups was noted with regard to patients’ age. The median operative time for DHS and MCCS groups was 75 mins (range 60-90 mins)  and 60 mins (range 50-70 mins), respectively. Average blood loss was more in DHS (200 mL) than in MCCS (120 mL) group. Majority of the patients (75%) in the DHS group showed excellent HHS results