Ligamentum teres: a functional description and potential clinical relevance.
Purpose: The primary purpose of this study was to investigate the role the ligamentum teres has in providing hip stability using a biomechanical model. The second purpose was to review arthroscopic findings in those with a complete ligamentum teres rupture and question them regarding instability to...
| Publicado en: | Knee Surgery, Sports Traumatology, Arthroscopy Vol. 20; no. 6; pp. 1209 - 1215 |
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| Autores principales: | , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Wiley-Blackwell
Jun2012
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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=104447687&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104447687 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09422056 NRT jtl: Knee Surgery, Sports Traumatology, Arthroscopy issn: 09422056 maglogo: N pubinfo: dt: Jun2012 vid: 20 iid: 6 pid: 480 pub: Wiley-Blackwell place: Malden, Massachusetts artinfo: ui: 104447687 NLM21932079 2011556535 10.1007/s00167-011-1663-1 NLM21932079 104447687 ppf: 1209 ppct: 6 formats: tig: atl: Ligamentum teres: a functional description and potential clinical relevance. aug: au: Martin RL Palmer I Martin HD Martin, Robroy L Palmer, Ian Martin, Hal D affil: Department of Physical Therapy, Duquesne University, 114 Rangos School of Health Sciences, Pittsburgh, PA 15282, USA sug: subj: Hip Injuries Complications Hip Joint Physiology Joint Instability Etiology Ligaments, Articular Physiology Adult Arthroscopy Biomechanics Female Prospective Studies Hip Injuries Physiopathology Hip Joint Physiopathology Human Ligaments, Articular Injuries Male Middle Age Models, Anatomic Retrospective Design Rupture Complications Rupture Physiopathology Adult: 19-44 years Middle Aged: 45-64 years Female Male ab: Purpose: The primary purpose of this study was to investigate the role the ligamentum teres has in providing hip stability using a biomechanical model. The second purpose was to review arthroscopic findings in those with a complete ligamentum teres rupture and question them regarding instability to determine how clinical findings related to the biomechanical model.Methods: A string model was created to examine ligamentum teres excursion during various hip positions. A retrospective review of 350 consecutive surgical patients identified 20 subjects with a complete ligamentum teres rupture that was not repaired at the time of surgery.Results: The model found the ligamentum teres to have the greatest excursion when the hip was externally rotated in flexion (ER/FLEX) and internally rotated in extension (IR/EXT). During operative assessment, it was noted that all 20 subjects had laxity during dynamic impingement testing when their hip was in a position of ER/FLEX. Nine (45%) of the 20 subjects with ligamentum teres rupture were available for follow-up (mean 31 months post-op). Five out of these 9 subjects noted instability: 5 of 9 with squatting (ER/FLEX) and 4 of 9 with crossing one leg behind of the other (IR/EXT). These 5 subjects had osseous risk factors that compromised hip stability including inferior acetabular insufficiency.Conclusions: The ligamentum teres may contribute to hip stability when the hip is in ER/FLEX and IR/EXT. Individuals with osseous risk factors for instability, including inferior acetabular insufficiency, may have instability with squatting (ER/FLEX) and crossing one leg behind of the other (IR/EXT).Level Of Evidence: IV. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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