Interest of short implants in hip arthroplasty for osteonecrosis of the femoral head: comparative study "uncemented short" vs "cemented conventional" femoral stems

International Orthopaedics
Mehdi MiladiJean-Charles Aurégan

Abstract

Osteonecrosis of the femoral head (ONFH) is a dramatic condition resulting in joint destruction in the late stages. Total hip arthroplasty allows function recovery with satisfactory implant survival. Recently, the use of uncemented short stems has been suggested to improve the conservation of bone stock. We performed a retrospective study on 16 hip arthroplasties-11 patients-implanted for ONFH between 2008 and 2017. We aimed to compare the outcomes of the two types of arthroplasty-"uncemented short" vs "cemented conventional" femoral stem-in terms of pain (visual analogue scale), function (Harris Hip Score), and survival (radiography). We included six  "uncemented short" and ten "cemented conventional" femoral stems. Mean pre-operative EVA was 7.5 and the mean HHS was 40.3. At last follow-up of seven years, mean VAS was 1.2 (SD ± 0.83) in the "uncemented short" group and 1.6 (SD ± 0.97) in the "cemented conventional" group. Mean HHS was 94 (SD ± 0.81) in the "uncemented short" group and 92.6 (SD ± 2.69) in the "cemented conventional" group. However, radiographic analysis revealed a lower stress shielding in the "uncemented short" stem group. One complication occurred (hip dislocation in the "cemented conventional" stem group). ...Continue Reading

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Citations

Nov 6, 2018·SICOT-J·Philippe HernigouCharles Henri Flouzat Lachaniette
Feb 6, 2020·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Michael-Alexander MalahiasFritz Thorey
Nov 21, 2019·Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy·Satish BabuJustin Cobb
Apr 14, 2020·The Journal of Bone and Joint Surgery. American Volume·Michael A MontLynne C Jones
Nov 10, 2018·International Orthopaedics·Nicola SantoriFrancesco Saverio Santori
Aug 11, 2018·Der Orthopäde·M BetschB Rath
Jun 24, 2018·International Orthopaedics·Philippe HernigouJacques Hernigou
Jul 29, 2019·International Orthopaedics·Josef HochreiterMarian Mitterer

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