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Review
. 2024 Oct;48(10):2579-2588.
doi: 10.1007/s00264-024-06199-0. Epub 2024 May 1.

Medium- to long-term clinical efficacy of total hip arthroplasty with structural bone grafting for dysplasia of the hip

Shuo Feng #  1 , Ning Liu #  2 , Long Huang  2 , Geng-Ao Wen  2 , Guo-Chun Zha  3 , Jun Zhang  4
Affiliations
Review

Medium- to long-term clinical efficacy of total hip arthroplasty with structural bone grafting for dysplasia of the hip

Shuo Feng et al. Int Orthop. 2024 Oct.

Abstract

Background: Patients with dysplasia of the hip (DDH) have different degrees of bone defects above and outside the acetabulum, and anatomically reconstructing the acetabular centre of rotation is difficult in primary total hip arthroplasty (THA).

Methods: From April 2012 to December 2022, 64 patients (64 hips) with DDH treated with THA with structural bone graft in the superolateral acetabulum were selected. The Oxford hip score(OHS), Barthel index (BI), leg length discrepancy, Wibegr central edge-angle(CE), gluteus medius muscle strength, vertical and horizontal distance of the hip rotation center, coverage rate of the bone graft and complications were used to evaluate the clinical effectiveness of the patients.

Results: All patients were followed up for an average of 7.3±1.9 years. The OHS improved significantly after the operation (P<0.001). The postoperative BI was significantly greater than that before operation (P<0.001). The postoperative leg length discrepancy was significantly lower than that before the operation (P<0.001). Postoperative bedside photography revealed that the height and horizontal distance to the hip rotation center were significantly lower after surgery than before surgery (P<0.001). The postoperative CE was significantly greater than that before surgery (P<0.001). No acetabular component loosening or bone graft resorption was found during the postoperative imaging examination.

Conclusions: The use of biological acetabular cup combined with structural bone graft in the superolateral acetabulum in THA for DDH can obtain satisfactory medium and long-term clinical and radiological results.

Keywords: Developmental dysplasia of the hip; Structural bone graft; Total hip arthroplasty.

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