Abstract
The purpose of this study was to investigate the clinical outcomes of salvage total hip arthroplasty (THA) after medial buttress plate surgery for femoral neck fractures via the modified Hardinge approach (MHA) and posterolateral approach (PLA) through a retrospective analysis. From October 2016 to October 2020, a total of 41 patients with failed femoral neck fractures treated with cannulated screws and medial buttress plates underwent unilateral salvage THA, and a retrospective study was conducted. According to the surgical approach, patients were divided into PLA group and MHA group. Clinical and radiological data were evaluated. The primary outcome indicators were the Pain Visual Analog Scale (VAS) and Hip Harris Score (HHS). Secondary outcome indicators include hemoglobin (HGB), hematocrit (HCT), creatine kinase (CK), creatine kinase-MB (CK-MB), etc. The occurrence of postoperative complications was also recorded. There were no differences in demographic or clinical characteristics before surgery. There were no differences in postoperative HGB, HCT, CK-MB and radiological parameters. The surgical approach had no effect on the hospitalization period. The PLA group had earlier ambulation time, and the serum level of CK was also low. Analysis of the HHS and VAS showed that on postoperative day 3, the PLA group had superior scores. The incidence of complications did not significantly differ between groups. The posterolateral approach for salvage THA provides better functional recovery with less muscle damage in the early postoperative period.
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