Navegando por Palavras-chave "Luxação Patelar"
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- ItemSomente MetadadadosEstudo anatomico do ligamemto patelofemoral lateral e da altura patelar(Universidade Federal de São Paulo (UNIFESP), 2007) Navarro, Marcelo Schmidt [UNIFESP]
- ItemSomente MetadadadosInfluência Da Técnica Cirúrgica De Reconstrução Dos Estabilizadores Estáticos Mediais Da Patela Na Pressão De Contato E Estabilidade Patelofemoral: Estudo Biomecânico(Universidade Federal de São Paulo (UNIFESP), 2017-10-31) Ambra, Luiz Felipe Morlin [UNIFESP]; Faloppa, Flavio [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)Introduction: Several procedures have been described to treat chronic patellar instability. We evaluated restoration of patellar stability and changes in patellofemoral contact pressures. Objectives: To evaluate the effect of the reconstruction of the medial static restrain of the patella regarding the patellar stability and changes in patellofemoral contact pressures. Methods: Eight human cadaveric knees were evaluated in five different conditions: native, medial static patellar restrain lesion, medial patellofemoral ligament reconstruction with gracilis tendon free autograft “MPFL-G”, medial patellofemoral ligament reconstruction using quadriceps tendon transference “MPFL-QD”, medial patellotibial ligament XV II reconstruction using patellar tendon transference “MPTL”. Contact pressures were measured at 30, 60 and 90 degrees of flexion. Patellar lateral displacement was evaluated with the knee positioned at 30 degrees. The same protocol was used for all conditions. Results: No statistical difference was found for mean contact pressures among all techniques. However, while both techniques of MPFL reconstruction were able to restore the medial restraint, MPTL failed to restore patellar lateralization to the native condition (Mean lateralization of the patella [mm]: NATIVE: 9.48; lesion: 22.05; MPFL-G: 8.1; MPFL-QD: 11.32; MPTL-PT: 23.44) (p<.001). Conclusion: Both “MPFL-G” and “MPFL-QD” are effective in restoring medial patellofemoral stability without affecting patellofemoral contact pressures. Although the MPTL did not increase contact pressures, it failed to restore patellar stability at 30 degrees of flexion.
- ItemSomente MetadadadosRessonancia magnetica cinematica na avaliacao da articulacao femoropatelar, proposta de um metodo de estudo(Universidade Federal de São Paulo (UNIFESP), 2004) Yang, Je Hoon [UNIFESP]