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Medial open-wedge high tibial osteotomy linked with cartilage regeneration

August 17, 2017

While correcting a varus deformity in arthritic knees after medial open-wedge high tibial osteotomy with a locked plate system and no additional cartilage regeneration procedures, researchers noted that regeneration of degenerated articular cartilage in the medial compartment can be expected.

Researchers identified 104 knees that received medial open-wedge high tibial osteotomy (HTO) with a medial locked plate system without any additional cartilage regeneration procedures and followed by second-look arthroscopy for plate removal 2 years after surgery from February 2008 to January 2014. Using the International Cartilage Repair Society grading system, researchers graded cartilage status at the time of initial HTO and second-look arthroscopy. The macroscopic staging system of Koshino and colleagues was used to classify regenerated articular cartilage at the time of second-look arthroscopy. Researchers evaluated patient age, sex, BMI, American Knee Society score, mechanical tibiofemoral angle, medial proximal tibial angle, the amount of correction angle and the degree of arthritis for possible association with regeneration of articular cartilage.

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