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Sagittal realignment osteotomy for increased posterior tibial slope after opening-wedge high tibial osteotomy: a case
Yuka Kimura1, Yasuyuki Ishibashi, Eiichi Tsuda
1Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan. yukax10@cc.hirosaki-u.ac.jp.
Abstract:
A 40 year old welder who underwent opening-wedge high tibial osteotomy for correction of alignment in a varus knee developed persistent pain with loss of knee extension. The posterior tibial slope increased from 9 degrees to 20 degrees after the osteotomy and caused the anteromedial knee pain and limited extension. The patient then underwent a revision osteotomy using a closing wedge technique to correct tibial slope. The osteotomy was performed, first from the medial cortex in the lateral direction, and second in the anteroposterior direction to remove the tibial bone in wedge shape and obtain full extension of the knee. The posterior tibial slope decreased to 8 degrees after the revision osteotomy and the patients returned to pain-free daily life. We reviewed this unique technique for correction of sagittal malalignment using a closing-wedge osteotomy for revision after opening-wedge osteotomy.