Noncemented Hip Arthroplasty using Anatomic Hip Prosthesis Femoral Stem

Kang, Joon Soon; Park, Seung Rim; Kim, Hyung Soo; Kwon, Soon Cheul

Abstract

The author tried to get result after clinical and radiological studies with 27 patients(35 hip joints) who have been operated non-cemented bipolar hemiarthroplasty or total hip replacement arthroplasty with using Anatomic hip prosthesis(Zimmer, Inc.; Warsaw, IN) femoral stem and who could be followed for the period of more than two years(average 30 months) at the INHA University Hospital, Dept. of Orthopaedic Surgery from the Feb, 1990 through the Dec, 1992. Average sequential Harris hip rating were maintained between 90 and 98 point during the follow- up interval. The Harris hip score was statistically significant in the degree of the initial fixation, degree of the thigh pain and degree of the limping but there was no difference significantly in degree of the final femoral componet fixation. Pain in the thigh was recorded at the yearly examinations from the first to the last follow-up. After one year, there were marked thigh pain in 2.9 per cent but in last follow-up there were no marked painful thigh. The limp was detacted 5.7 per cent after one year and last follow-up. Radiographs demonstrated that the fixation of the femoral componet was by bone ingrowth in 60 per cent of the hip, by stable fibrous fixation in 40 per cent, according to the criteria of Engh et al. The evaluated device was an early-generation prosthesis that was designed for insertion without the use of cement. Further study in necessary to determin the long-term durability of the prosthesis.