Cementless large-head metal-on-metal total hip arthroplasty in patients younger than 60 years - A multicenter early result

Po-Ting Wu, Chih Jen Wang, Cheng Yo Yen, Ji Shen Jian, Kuo-An Lai

研究成果: Article

摘要

Large-head metal-on-metal total hip arthroplasty has the theoretical advantages of less wear and better range of motion than traditional polyethylene bearings and seems to be a better choice for young and active patients. We conducted a retrospective study and reported the early results of using such prostheses in 59 patients (70 hips) with a mean age of 43.1 years (range, 23-59 years) at the time of surgery. Osteonecrosis of the femoral head accounted for most diagnoses. Harris Hip Scores and hip range of motion both significantly improved (p < 0.001) at an average follow-up of 32.6 months (range, 24-48 months). Only one intraoperative calcar fissure was encountered, and it was fixated by cerclage wiring; there was no infection, dislocation, or osteolysis around either the cup or the stem at the latest follow-up. A postoperative gap in the acetabular component was noted in 24 hips, with a mean depth of 1.11 mm, but this was not correlated with the functional score (p = 0.291). Transient thigh pain, which resolved after 6 months, was observed in six patients but was not related to either the postoperative gap or cup inclination (p = 1.000 and p = 0.664, respectively). All patients resumed their original jobs and recreational activities with little discomfort. Thus far, large-head metal-on-metal total hip arthroplasty has shown excellent early results. The long-term results and the effects of metal debris and potentially elevated serum metal ion levels require further observation.

原文English
頁(從 - 到)30-37
頁數8
期刊Kaohsiung Journal of Medical Sciences
28
發行號1
DOIs
出版狀態Published - 2012 一月 1

指紋

Arthroplasty
Hip
Metals
Head
Articular Range of Motion
Thigh
Osteolysis
Osteonecrosis
Polyethylene
Prostheses and Implants
Retrospective Studies
Observation
Ions
Pain
Infection
Serum

All Science Journal Classification (ASJC) codes

  • Medicine(all)

引用此文

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