Authors: Christophe Nich
Publish Date: 2016/08/09
Volume: 475, Issue: 2, Pages: 384-386
Abstract
The author certifies that he or a member of his immediate family has no funding or commercial associations eg consultancies stock ownership equity interest patent/licensing arrangements etc that might pose a conflict of interest in connection with the submitted articleClinicians have proposed the use of short femoral stems to preserve bone stock and improve loadtransfer characteristics of cementless THAs They expect this approach to decrease the frequency of thigh pain offer less stress shielding and lower the risk of periprosthetic fracture compared to conventional cementless stems Additionally shorter stems can be adapted to minimally invasive approaches as they facilitate insertion and reportedly limit peroperative complications specifically periprosthetic fractures 8To date however it remains unclear whether short femoral stem THAs perform as well as their standardsized counterparts in a durable way The longest followup studies 10 years or longer have been reported for short femoral implants either with a tight metaphyseal design 7 9 or with a neckpreserving concept 4 5 in patients with a mean age of 52 years to 73 years Using these systems researchers found acceptable stem revision rates 0 to 34 for aseptic loosening 4 5 7 9
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