Abstract

BACKGROUND he present study was performed to evaluate the clinical efficacy of Tri-Lock bone preservation stems vs conventional Corail stems in primary total hip arthroplasty via direct anterior approach. MATERIAL AND METHODS In this retrospective analysis, patients receiving THA via DAA in a single-center hospital from January 2019 to March 2020 were assessed for eligibility and assigned to either a Tri-Lock BPS group or a Corail group based on the use of prostheses. Outcome measures for the efficiency evaluation of the 2 prostheses included perioperative outcomes, imaging results, Harris Hip Score, Western Ontario and McMaster University Osteoarthritis Index, and visual analog scale scores at 3, 6, 12, and 24 months postoperatively. RESULTS A total of 204 patients were included, including 98 patients (98 hips) in the Tri-Lock BPS group and 106 patients (106 hips) in the Corail group. Patients receiving Tri-Lock BPS exhibited better pain relief than those with Coral stems. Tri-Lock BPS had a higher safety profile vs Corail stems by significantly reducing the risk of complications (P=0.004). A markedly increased HHS score (84.42±16.27 vs 78.61±12.78, P=0.002) and a lower WOMAC score (25.08±15.39 vs 32.14±11.56, P=0.001) at 3 months postoperatively were observed in patients with Tri-Lock BPS vs those with Corail stems, indicating better restoration of hip function using Tri-Lock BPS. CONCLUSIONS During total hip arthroplasty via DAA, Tri-Lock BPS causes a smaller surgical wound, reduces the operative time and intraoperative bleeding, and produces less soft-tissue damage vs Corail stems, providing great benefits in femoral prosthesis placement.

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