Leg length and offset measures with a pinless femoral reference array during THA.
The bony fixation of reference marker arrays used for computer-assisted navigation during total hip arthroplasty (THA) theoretically involves the risk of fracture, infection, and/or pin loosening. We asked whether intraoperative assessment of leg length (LL) and offset (OS) changes would be accurate...
| Publicado en: | Clinical Orthopaedics & Related Research® Vol. 468; no. 7; pp. 1862 - 1869 |
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| Autores principales: | , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Lippincott Williams & Wilkins
Jul2010
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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=105025105&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105025105 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0009921X 23N jtl: Clinical Orthopaedics & Related Research® issn: 0009921X maglogo: N pubinfo: dt: Jul2010 vid: 468 iid: 7 pid: 433 pub: Lippincott Williams & Wilkins place: Baltimore, Maryland artinfo: ui: 105025105 NLM19768517 2010681203 10.1007/s11999-009-1086-1 NLM19768517 PMC2882021 105025105 ppf: 1862 ppct: 7 formats: tig: atl: Leg length and offset measures with a pinless femoral reference array during THA. aug: au: Renkawitz T Schuster T Grifka J Kalteis T Sendtner E Renkawitz, Tobias Schuster, Tibor Grifka, Joachim Kalteis, Thomas Sendtner, Ernst affil: Department of Orthopaedic Surgery, Regensburg University Medical Center, Regensburg, Germany sug: subj: Arthroplasty, Replacement, Hip Methods Femur Anatomy and Histology Leg Anatomy and Histology Therapy, Computer Assisted Methods Algorithms Arthroplasty, Replacement, Hip Standards Cadaver Female Femur Radiography Human Leg Radiography Male Observer Bias Weights and Measures Reproducibility of Results Tomography, X-Ray Computed Female Male ab: The bony fixation of reference marker arrays used for computer-assisted navigation during total hip arthroplasty (THA) theoretically involves the risk of fracture, infection, and/or pin loosening. We asked whether intraoperative assessment of leg length (LL) and offset (OS) changes would be accurate using a novel pinless femoral reference system in conjunction with an imageless measurement algorithm based on specific realignment of the relationship between a dynamic femoral and pelvis reference array. LL/OS measurements were recorded during THA in 17 cadaver specimen hips. Preoperatively and postoperatively, specimens were scanned using CT. Linear radiographic LL/OS changes were determined by two investigators using visible fiducial landmarks and image processing software. We found a high correlation of repeated measurements within and between (both 0.95 or greater) the two examiners who did the CT assessments. Pinless LL/OS values showed mean differences less than 1 mm and correlations when compared with CT measurements. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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