Normal range of motion at the hip show different pressure behavior in the lateral and acetabular compartments : a cadaveric investigation
Fiche du document
31 mai 2023
- handle: 10670/1.vi6phq
- doi: 10.1186/s40634-022-00450-6
Sujets proches
KineticsCiter ce document
Marc-Olivier St-Pierre et al., « Normal range of motion at the hip show different pressure behavior in the lateral and acetabular compartments : a cadaveric investigation », Papyrus : le dépôt institutionnel de l'Université de Montréal, ID : 10.1186/s40634-022-00450-6
Métriques
Partage / Export
Résumé
Purpose The techniques used previously to assess intracapsular pressures did not allow the assessment of pressure variations in both compartments throughout the entire range of motion without puncturing the capsular tissue. Our hypothesis was that the intra-capsular pressure would be different in the lateral and acetabular compartment depending on the movement assessed. Methods Eight hip joints from four cadaveric specimens (78.5 ± 7.9 years) were assessed using intra-osseous tunnels reaching the lateral and acetabular compartments. Using injector adaptors, 2.7 ml of liquid were inserted in both compartments to simulate synovial liquid. Optic pressure transducers were used to measure pressure variations. We manually performed hip adduction, abduction, extension, flexion and internal rotation at 90° of flexion. Results Hip extension and internal rotation show the highest intra-capsular pressures in the lateral compartment with increases of 20.56 ± 19.29 and 19.27 ± 18.96 mmHg, respectively. Hip abduction and hip internal rotation showed depressurisations of − 16.86 ± 18.01 and − 31.88 ± 30.71 mmHg in the acetabular compartment, respectively. The pressures measured in the lateral compartment and in the acetabular compartment were significantly (P