Does fully-threaded Headless Compression Screw provide a length-stable fixation in undisplaced femoral neck fractures?

摘要: Summary Objective Femoral neck shortening is a common complication after surgical treatment for intracapsular femoral fractures. This study investigated whether fully-threaded Headless Compression Screw (FTHCS) can be more length-stable implant than partially-threaded cannulated screw (PTCS) in reducing shortening. Methods A total of 50 patients with undisplaced fractures (17 treated by internal fixation three FTHCS, and 33 PTCS) from 2011 to 2014 were enrolled this study. The radiography the hips medical records reviewed proximal femur geometry complications. Results Significant length until union noted both group (FTHCS group: −2.5 mm, p = 0.045; PTCS −2.4 mm, p = 0.011). There was no significant difference between groups (p = 0.855). Age only risk factor >5 mm (p = 0.041). neck-shaft angle tended reduce become varus (FTHCS: −2.7°, SD = 4.5, p = 0.028; PTCS: −5.0°, SD = 8.3, p = 0.002), but differences nonsignificant (p = 0.577). rates similar FTHCS (17.6% 21.2%, p > 0.999). Conclusion FTHCSs may substitute PTCSs, it cannot prevent collapse fracture fixation. Future studies should focus on how preserve hip function