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Percutaneous Reduction and 2.7-mm Cortical Screw Fixation for Low-Energy Lisfranc Injuries
Young Hwan Park1, Jeong Hwan Ahn2, Gi Won Choi3
1Orthopaedic Surgeon, Department of Orthopaedic Surgery, Korea University Guro Hospital, Seoul, Korea.
Abstract:
To use the advantages of transarticular screw fixation while minimizing iatrogenic involved joint damage and screw irritation, it is important to determine the screw size. The aim of this study was to analyze the outcomes of percutaneous reduction and 2.7-mm cortical screw fixation for low-energy Lisfranc injuries and determine whether the procedure is a safe alternative to traditional screw fixation using a larger screw size. A review was performed for all patients who underwent percutaneous reduction and 2.7-mm cortical screw fixation for low-energy Lisfranc injuries at a single institution over a 6-year period. Thirty-one patients were enrolled in this study. Patients were assessed clinically and radiographically for demographics, foot function index (FFI), numerical rating scale (NRS) for pain, patient satisfaction, and complication rates. Factors affecting screw breakage and its clinical relevance were also analyzed. The FFI and NRS for pain were 17.2 ± 14.7 (range 0.8 to 57.8) and 3.1 ± 2.3 (range 0 to 8) points, respectively, at the 12-month follow-up visit. One patient (3.2%) underwent arthrodesis for the development of posttraumatic arthritis; all other patients recovered without sequelae. Screw breakage was identified in 7 patients (22.6%). There was no significant difference between patients with and without screw breakage in terms of FFI, NRS for pain, patient satisfaction, or complication rate. Body mass index (BMI) was significantly higher in patients with screw breakage than in those without screw breakage. Receiver operator characteristics curve analysis demonstrated a strong relationship between BMI and screw breakage (area under the curve = 90%, p < .001), and the potential BMI cutoff value was 27.8 kg/m2. After considering the incidence of screw breakage, percutaneous reduction and 2.7-mm cortical screw fixation can be a viable option for treating low-energy Lisfranc injuries in nonobese patients, especially those with BMI <27.8 kg/m2.
