Cementless total hip replacement: a prospective clinical study of the early functional and radiological outcomes of three different hip stems
作者： Philipp Bergschmidt , Rainer Bader , Susanne Finze , Alexander Gankovych , Guenther Kundt
DOI: 10.1007/S00402-009-0907-8
关键词:
摘要: Optimal fixation of cementless total hip stems is essential for long-term survival rates. The purpose this prospective study was to evaluate the early clinical and radiological outcomes two new with metaphyseal (Symax®) predominantly diaphyseal (Hipstar®) anchoring principles in comparison well-established straight Zweymueller (SL-Plus®) stem. Clinical evaluations 74 patients were undertaken preoperatively as well at 6 12 months postoperatively using Harris Hip Score (HHS) Western Ontario McMaster Universities-Score. During follow-up no stem had be revised. mean preoperative HHS three groups amounted 54.6 ± 15.7 points. At SL-Plus group (n = 22) 88.3 ± 10.5 points, Hipstar (n = 25) 83.3 ± 15.0 Symax (n = 27) 83.6 ± 15.1. Due stress shielding revealed radiolucent lines proximal Gruen zones about 60%, whereas showed significantly more (87%). However, subsequent studies must carried out order clarify if progression may influence result implant longevity.
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