Hemispheric cups do not reproduce acetabular rim morphology.
Background Iliopsoas impingement is a recurrent complication following THA, caused by muscle friction against a protrusive prosthetic cup.This study was designed to quantify the dimensional variations in acetabular rim proiles, with particular regard to the iliopubic valley, in order to suggest mean...
| Publicado en: | Acta Orthopaedica Vol. 78; no. 3; pp. 327 - 333 |
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| Autores principales: | , , , , |
| Formato: | research Journal Article |
| Publicado: |
Medical Journals Sweden AB
Jun2007
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105997512&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105997512 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17453674 1BVL jtl: Acta Orthopaedica issn: 17453674 maglogo: N pubinfo: dt: Jun2007 vid: 78 iid: 3 pid: 59195 pub: Medical Journals Sweden AB artinfo: ui: 105997512 2009637358 10.1080/174536707100013870 NLM17611844 105997512 ppf: 327 ppct: 6 formats: fmt: @attributes: type: P tig: atl: Hemispheric cups do not reproduce acetabular rim morphology. aug: au: Vandenbussche E Saffarini M Delogé N Moctezuma JL Nogler M sug: subj: Acetabulum Surgery Arthroplasty, Replacement, Hip Adverse Effects Arthroplasty, Replacement, Hip Equipment and Supplies Acetabulum Anatomy and Histology Aged Aged, 80 and Over Biocompatible Materials Cadaver Female Joint Prosthesis Male Middle Age Postoperative Pain Etiology Postoperative Pain Prevention and Control Prosthesis Design Prosthesis Failure Psoas Muscles Reoperation Human Aged: 65+ years Aged, 80 & over Middle Aged: 45-64 years Female Male ab: Background Iliopsoas impingement is a recurrent complication following THA, caused by muscle friction against a protrusive prosthetic cup.This study was designed to quantify the dimensional variations in acetabular rim proiles, with particular regard to the iliopubic valley, in order to suggest means to prevent iliopsoas impingement. Material and methods 34 cadaver pelvises were analyzed using a hip navigation system.The morphometric data were processed to plot proiles of all acetabular rims with particular regard to the shape and depth of the psoas valley. Results The acetabular rim is an asymmetric succession of 3 peaks and 3 troughs.The psoas valley is a salient feature in most pelvises and there is only a weak correlation between its depth (mean 3.8 mm, SD 2.0) and acetabular diameter, anteversion, or inclination. Interpretation It would be dificult to obviate the anterior overlap of the acetabulum using a hemispheric cup, a fortiori in certain morphotypes, without compromising range of motion or risk of dislocation.The solution for prevention of iliopsoas impingement would be to adapt cup design to acetabular anatomy, which may require different implants for the right and left sides, and hence a doubled inventory. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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