[Proximal fixation of hip endoprostheses with porous surface: results of 6 years].
OBJECTIVE
The anatomically shaped pcl (ESKA) total hip replacement has a porous coating of the proximal stem and the cup to allow for bony ingrowth. The tip of the stem is polished.


METHODS
We report the results of 96 THR 6.2 years (5.25-6.7) after implantation.


RESULTS
There were no revisions during this period. One stem showed radiographic loosening at follow-up. There was stress-shielding in 9.4% in contrast to the concept of proximal fixation. Thigh-pain was found in 9.4%. One patient demonstrated disabling thigh-pain despite radiologic bony ingrowth. By drilling the femur distal to the tip of the stem a remarkable relief was achieved.


CONCLUSIONS
Despite numerous cases of stress-shielding (9.4%), bony ingrowth occurs in 97%. The tcl-THR performs sufficiently after 6 years of implantation.
Klinik für Orthopädie, Universität Mainz.
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J
Decking
T
T
Rosendahl
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D
Decking
D000328:Adult; D000368:Aged; D019544:Equipment Failure Analysis; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D016348:Osseointegration / Q000502:physiology*; D010149:Postoperative Pain / Q000000981:diagnostic imaging; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D011474:Prosthesis Design; D011859:Radiography; D012086:Reoperation; D016474:Weight-Bearing / Q000502:physiology
Proximale Verankerung von Hüft-Endoprothesen mit poröser Oberfläche: 6-Jahres-Ergebnisse.