Ceramic-on-ceramic total hip arthroplasty for treating avascular necrosis of the femoral head in 23 cases
10.3969/j.issn.1673-8225.2009.39.041
- VernacularTitle:全陶瓷型人工髓关节置换治疗股骨头缺血性坏死23例
- Author:
Bo YU
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2009;13(39):7780-7784
- CountryChina
- Language:Chinese
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Abstract:
OBJECTIVE: Aseptic prosthetic loosening is a primary problem of total hip arthroplasty. For this reason, several prosthesis interfaces with different characteristics have been studied, such as ceramic-on-ceramic prosthesis. The purpose of this study wasto investigate the mid- and short-term curative effects of ceramic-on-ceramic total hip arthroplasty in treatment of avascularnecrosis of the femoral head (ANFH) and to evaluate its clinical application value.METHODS: A total of 23 patients (28 hips) with ANFH who received ceramic-on-ceramic non-cement hip prosthesis replacementwere followed up. All hip prostheses were BiCONTACT~((R)) ceramic-on-ceramic hip prostheses. Functional evaluation was assessedaccording to the Harris hip score. Radiographic analysis was performed using the Gruen's zonal method for the stem and the zonal classification of Delee-Charnley for the cup implants.RESULTS: All patients were followed up for an average of 28 months. The mean Harris hip scores ranged from 39.45 points prior to surgery to 88.57 points after surgery, with a difference which was significant (P < 0.05). Radiographically, no obvious prosthesis loosening or subsidence was observed. CONCLUSION: The ceramic-on-ceramic total hip arthroplasty can produce good short-term curative effects in treatment of ANFH.Radiographic findings do not show obvious prosthesis loosening.
