The Application of a Noninvasive Extracapsular Traction Reduction Technique in Valgus-Impacted Femoral Neck Fracture: Radiological and Clinical Results.

Backgroud: Reduction of valgus-impacted femoral neck fractures remains a major challenge for orthopedic surgeons. Most reduction techniques require extensive surgical experience, and intraoperative reduction evaluation standards do not exist. The aim of this study is to report the use of a noninvasive extracapsular traction reduction technique for valgus-impacted femoral neck fractures and our innovative use of a smartphone application to evaluate reduction outcomes. Methods: We conducted a retrospective study on patients with valgus-impacted femoral neck fractures who underwent the noninvasive extracapsular traction reduction technique at a hospital between December 2022 and January 2024. General medical records from the preoperative, intraoperative, and postoperative periods were collected, with particular emphasis on evaluating intraoperative reduction effectiveness. The primary reduction indicator was the reduction angle (RA). The principal functional assessment indicator was the Harris Hip Score (HHS). Results: Radiographic measurements demonstrated significant differences between preoperative and postoperative RAs on the affected side ( Conclusions: For valgus-impacted femoral neck fractures, the bone hook-assisted noninvasive extracapsular traction reduction technique can achieve optimal reduction without causing intraarticular cartilage damage. The RA helps evaluate the quality of intraoperative reduction. ImageMeter can be an effective tool for evaluating fracture reduction intraoperatively.