Bone remodeling characteristics of a short-stemmed total hip replacement.
Bone remodeling of a metaphyseal fixed femoral stem, Mayo Conservative Hip (Zimmer International, Warsaw, Ind), was characterized by the dual-energy x-ray absorptiometry and a mathematical remodeling model. The mean age of the patient was 50.8 years, and the mean follow-up was 5.7 years. As anticipated, bony structure underwent significant remodeling after the short-stemmed femoral arthroplasty with resorption proximally and ingrowth distally/laterally. Theoretical prediction further suggested that the remodeling was largely regulated by the mechanical loading distribution pattern determined by implant design.
Department of Physiology, Taipei Medical University, Taipei, Taiwan.
Hsiang-Ho
HH
Chen
Bernard F
BF
Morrey
Kai-Nan
KN
An
Zong-Ping
ZP
Luo
D015502:Absorptiometry, Photon; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation / Q000379:methods*; D001696:Biomechanical Phenomena; D015519:Bone Density / Q000502:physiology*; D016723:Bone Remodeling / Q000502:physiology*; D005260:Female; D005500:Follow-Up Studies; D006621:Hip Joint / Q000502:physiology*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008962:Models, Theoretical; D011474:Prosthesis Design; D016474:Weight-Bearing / Q000502:physiology; D055815:Young Adult