J Korean Orthop Assoc.  1996 Feb;31(1):72-81. 10.4055/jkoa.1996.31.1.72.

Cementless Total Hip Arthroplasty Using Hydroxyapatite-Coated Femoral stem. - Two-Year Clinical and Radiologic Follow-UP-

• Hwang SK
• Rah JH
• Park Y

• KMID: 2423578
• DOI: http://doi.org/10.4055/jkoa.1996.31.1.72

Abstract

PURPOSE
Evaluation of clinical and radiologic results of THR using HA-coated femoral stem.
MATERIALS AND METHODS
From Jan. 1991 to Dec. 1992, we carried out 177 cases of Total Hip Arthroplasty using hydroxyapatite-coated implants of 167 patients, and among thses, 153 cases in 144 patients were followed up more than 24 months. The implants used were 74 cases of Mallory-Head Hip system, 41 cases of Omnifit system and 38 cases of Profile system.
RESULTS
The average Harris Hip Score was 48.3 points preoperatively, 94.7 points at POD 1 year and 95.7 at POD 2 years. Seven patients(5.2%) complained thigh pain at POD 2 years. On the radiologic findings, cancellous condensation was noted around the hydroxyapatite coating region of femoral stem in 84 cases(54.2%), and radiolucent lines were noted at the non-coating region of distal stem in 102 cases(67.7%), but were less than 2mm and not progressive. There was no statistically significant differences among the groups of these three implants(P < 0.05). Comments : This early result of femoral stems with hydroxyapatite-coating was quite satisfactory, however, long-term follow-up studies will be necessary.

Keyword

Total Hip Arthroplasty; Cementless; Hydroxyapatite-coated stem

MeSH Terms

Arthroplasty, Replacement, Hip*
Durapatite
Follow-Up Studies
Hip
Humans
Thigh
Durapatite