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The pectineal ligament is a secondary stabilizer in anterior pelvic ring fractures - a biomechanical study.
Osterhoff, Georg; Reise, Rebekka; Riemer, Elena; Höch, Andreas; Fakler, Johannes K M; Heyde, Christoph-Eckhard; Schleifenbaum, Stefan.
Afiliación
  • Osterhoff G; Department of Orthopaedics, Trauma and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany. Electronic address: georg.osterhoff@medizin.uni-leipzig.de.
  • Reise R; Centre for Research on Musculoskeletal Systems, Leipzig University, Leipzig, Germany.
  • Riemer E; Centre for Research on Musculoskeletal Systems, Leipzig University, Leipzig, Germany.
  • Höch A; Department of Orthopaedics, Trauma and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany.
  • Fakler JKM; Department of Orthopaedics, Trauma and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany.
  • Heyde CE; Department of Orthopaedics, Trauma and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany.
  • Schleifenbaum S; Department of Orthopaedics, Trauma and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany; Centre for Research on Musculoskeletal Systems, Leipzig University, Leipzig, Germany.
Injury ; 53(2): 334-338, 2022 Feb.
Article en En | MEDLINE | ID: mdl-34920874
BACKGROUND: There is ongoing discussion whether operative fixation of partially stable lateral compression fractures of the pelvis is beneficial for the patient. Recent studies suggest that the pectineal ligament may act as a secondary stabilizer of the anterior pelvis ring. The purpose of this study was to investigate the influence of the pectineal ligament's integrity on the biomechanical stability and displacement in anterior pelvic ring fractures. METHODS: In a biomechanical setup, a cyclic loading protocol was applied with sinusoidal axial force from 100 to 500 N on cadaver hemipelves with soft tissues (n = 5). After testing the native specimens ("No fracture"), increasing degrees of injury were created on the samples: 1. an osseous defect to the pubic ramus ("Bone #"), 2. cutting of all soft tissues including obturator membrane except for the pectineal ligament intact ("ObtM #"), 3. cutting of the pectineal ligament ("PectL #") - with the loading protocol being applied to each sample at each state of injury. Fracture motion and vertical displacement were measured using a digital image correlation system and opto-metric analysis. RESULTS: No failure of the constructs was observed. Creating a pubic ramus fracture (p = 0.042) and cutting the pectineal ligament (p = 0.042) each significantly increased relative fracture movement. The mean change in absolute movement was 0.067 mm (range, 0.02 mm to 0.19 mm) for ObtM # and 0.648 mm (range, 0.07 mm to 2.93 mm), for PectL # in relation to Bone # (p = 0.043). Also for absolute vertical movement, there was a significant change when the pectineal ligament was cut (p = 0.043), while there was no such effect with cutting all other soft tissues including the obturator membrane. CONCLUSIONS: Based on the findings of this in vitro study, the pectineal ligament significantly contributes to the stability of the anterior pelvic ring. An intact pectineal ligament reduces fracture movement in presence of a pubic ramus fracture.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Huesos Pélvicos / Fracturas Óseas / Fracturas por Compresión Límite: Humans Idioma: En Revista: Injury Año: 2022 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Huesos Pélvicos / Fracturas Óseas / Fracturas por Compresión Límite: Humans Idioma: En Revista: Injury Año: 2022 Tipo del documento: Article Pais de publicación: Países Bajos