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. 2022 Jul;142(7):1689-1695.
doi: 10.1007/s00402-021-04055-z. Epub 2021 Jul 16.

Uncemented total hip arthroplasty using alumina ceramic bearings at a minimum of 14 years of follow-up

Sachiyuki Tsukada  1   2 , Motohiro Wakui  3 , Kazuha Kizaki  3 , Takuya Iseki  3 , Masunao Miyao  3 , Atsushi Tasaki  4
Affiliations

Uncemented total hip arthroplasty using alumina ceramic bearings at a minimum of 14 years of follow-up

Sachiyuki Tsukada et al. Arch Orthop Trauma Surg. 2022 Jul.

Abstract

Introduction: The effectiveness of modern ceramic bearings has been well established in reducing the osteolysis associated with wear of the bearing surfaces in total hip arthroplasty (THA). However, there are limited mid- to long-term follow-up data for complications associated with ceramic bearings.

Materials and methods: This case series analyzed 124 consecutive primary uncemented THAs in 108 patients with a mean age of 61 years using alumina ceramic-on-alumina ceramic bearing couples. Seventy THAs (56%) were evaluated at a minimum 14 years of follow-up; the mean follow-up period was 16 ± 1 years (14-20 years). Kaplan-Meier survivorship was determined with revision surgery for any reason as the end point. Complications were recorded focusing on osteolysis, ceramic fracture, and abnormal sounds until the final follow-up. Clinical data were scored according to the Merle d'Aubigne and Postel hip score at 14 years after THA.

Results: The survivorship was 93.5% (95% CI 86.7-97.0%) at 14-years postoperatively. Five patients (4.0%) underwent revision surgery due to instability or infection before 1-year postoperatively. Two patients (1.6%) underwent revision surgery due to ceramic liner fracture at 9- and 12-years postoperatively, respectively. There was no radiographic evidence of osteolysis. A total of 27 complications occurred: dislocations (n = 7/124), squeaking sounds (n = 3/124), clicking sounds (n = 6/124), ceramic liner fractures (n = 2/124), periprosthetic fractures (n = 4/124), deep infections (n = 2/124), transient sciatic nerve palsy (n = 2/124), and femoral stem breakage (n = 1/124). The Merle d'Aubigne and Postel hip score was 16.8 ± 1.4 points.

Conclusions: The survivorship analysis demonstrates the uncemented THA using alumina ceramic bearings may provide favorable clinical outcome and can offer minimal wear at a minimum 14-year follow-up. Revision surgery was mostly required due to instability and infection in the short-term, and implant breakage in the mid- to long-term.

Keywords: Bearing surface; Case series; Ceramic; Hip; Primary arthroplasty.

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