Medial opening wedge tibial osteotomy and the sagittal plane: the effect of increasing tibial slope on tibiofemoral contact pressure
| Autor: | Robert A. Arciero, Vilmaris Diaz-Doran, Douglas J. Adams, Janet P. Tate, Craig M. Rodner, Augustus D. Mazzocca, Stephen Santangelo |
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| Rok vydání: | 2006 |
| Předmět: |
musculoskeletal diseases
Joint Instability medicine.medical_treatment Anterior cruciate ligament Physical Therapy Sports Therapy and Rehabilitation Tibial osteotomy Osteotomy 03 medical and health sciences 0302 clinical medicine Cadaver Pressure Medicine Humans Orthopedics and Sports Medicine Tibia Femur Anterior Cruciate Ligament Fixation (histology) Aged Aged 80 and over 030222 orthopedics Arthrometry Articular business.industry 030229 sport sciences Anatomy Middle Aged musculoskeletal system Opening wedge Sagittal plane Radiography medicine.anatomical_structure Stress Mechanical business Cadaveric spasm Bone Plates |
| Zdroj: | The American journal of sports medicine. 34(9) |
| ISSN: | 0363-5465 |
| Popis: | BackgroundAltering the tibial slope in an anterior cruciate ligament–deficient knee has been shown to affect anterior-posterior tibial translation. The effects on articular contact pressure of altering tibial slope during a high tibial osteotomy are unknown.HypothesesPerforming an opening wedge osteotomy anterior to the midaxial line will increase tibial slope. Increasing tibial slope with a high tibial osteotomy in an anterior cruciate ligament–deficient knee redistributes tibiofemoral joint contact pressures onto the posterior tibial plateau.Study DesignControlled laboratory study.MethodsMedial opening wedge high tibial osteotomies were performed, and a plate fixation with a known diameter inset was placed along the medial tibia in an anterior position and a posterior position on 9 cadaveric knees. Medial and lateral tibiofemoral contact pressures were measured at the resulting 2 different tibial slopes in both ligament-intact and ligament-deficient states using thin electronic sensors.ResultsAnterior plate application resulted in an increase in posterior tibial slope by an average of 6.6°(P ConclusionIncreasing tibial slope in anterior cruciate ligament–deficient knees with a high tibial osteotomy redistributes pressure into the posterior tibial plateau.Clinical RelevanceIn knees with chronic anterior cruciate ligament deficiency, posteromedial compartment degeneration is observed. Inadvertent redistribution of contact pressure into this area may be a cause of pain and premature clinical failure after medial opening wedge tibial osteotomy. |
| Databáze: | OpenAIRE |
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