What is the Fate of Total Hip Arthroplasty (THA) Acetabular Component Orientation When Evaluated in the Standing Position?
| Autor: | Young-Min Kwon, Henrik Malchau, Andrew A. Freiberg, John V. Tiberi, Valentin Antoci, Harry E. Rubash |
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| Rok vydání: | 2014 |
| Předmět: |
Pelvic tilt
Male medicine.medical_specialty Supine position Radiography Arthroplasty Replacement Hip Posture Pelvis Orientation (geometry) Supine Position Medicine Humans Orthopedics and Sports Medicine Range of Motion Articular skin and connective tissue diseases Retrospective Studies Orthodontics Hip business.industry Pelvic incidence Acetabulum Surgery Position (obstetrics) Acetabular component Female sense organs Bone Diseases business Total hip arthroplasty |
| Zdroj: | The Journal of arthroplasty. 30(9) |
| ISSN: | 1532-8406 |
| Popis: | This retrospective study measured the change of the acetabular component orientation between supine and standing radiographs in 113 THA patients and identified the associated anatomical parameters that may help direct pre-operative planning. The mean change of the acetabular component inclination and version from supine to standing was 4.6° and 5.9° respectively (P0.0001), with 49 (43%) hips showing inclination change5° and 69 (53%) hips showing version change5°. Twelve (43%) of 28 'malpositioned' cups became 'well-positioned' and 26 (31%) of 85 'well-positioned' cups became 'malpositioned' upon standing. Changes in inclination were associated with leg length discrepancy and pelvic obliquity; and changes in version were associated with pelvic tilt and pelvic incidence. Standing position and patient factors should be considered when defining "optimal" acetabular orientation. |
| Databáze: | OpenAIRE |
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