No increased stem subsidence after arthroplasty in young patients with femoral head osteonecrosis:41 patients followed for 1–9 years

Autor:	Christian Hendrich, Johannes Lermann, N. Wollmerstedt, Akif Ince, Sascha Göbel
Rok vydání:	2006
Předmět:	Adult Male musculoskeletal diseases medicine.medical_specialty Osteolysis WOMAC Arthroplasty Replacement Hip medicine.medical_treatment Dentistry Femoral head Femur Head Necrosis Hip replacement medicine Humans Orthopedics and Sports Medicine Femur business.industry General Medicine Middle Aged medicine.disease Arthroplasty Prosthesis Failure Surgery Radiography Treatment Outcome medicine.anatomical_structure Harris Hip Score Orthopedic surgery Female business Follow-Up Studies
Zdroj:	Acta Orthopaedica. 77:866-870
ISSN:	1745-3682 1745-3674
DOI:	10.1080/17453670610013141
Popis:	Poor bone stock in patients with osteonecrosis of the femoral head may be a reason for poor outcome after hip replacement. One way of studying bone quality is to measure implant migration. We thus investigated the clinical and radiographic results of cementless THR in younger patients with femoral head osteonecrosis.We studied hips in 41 patients (mean age 48 (25-63) years) with a cementless hip arthroplasty after late stage osteonecrosis. Clinical evaluation was by the Harris hip score, the WOMAC score and the SF-36 score. Stem subsidence was measured with the Ein Bild Roentgen Analyse femoral component analysis (EBRA-FCA) at 3, 12, 24, 60, and 72 months after operation. The average duration of follow-up was 7(1-9) years, with less than 2 years for 2 patients.There was no revision of any hip. No radiographic or clinical stem loosening was seen. After 60 months, the cementless stems showed a median subsidence of -0.7 mm (95% CI: -0.9 to -0.2). No femoral osteolysis occurred. Femoral radiolucent lines, all1 mm, were seen in 10 hips. At the latest follow-up the Harris hip score was 83 (23-100) points.Our findings for porous-coated stems in patients with femoral osteonecrosis indicate no greater risk of stem subsidence and rate of osteolysis after an average of 7 years follow-up. Thus, we continue to use uncemented stems in younger patients with femoral osteonecrosis. However, continued follow-up will be necessary to evaluate the long-term outcome.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7d0da17212d73feccc3cc7b25c0b87b9 https://doi.org/10.1080/17453670610013141 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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