Arthroscopic Treatment for Synovial Osteochondromatosis at the Knee Posterior Septum Using a Trans-Septal Approach: A Case Report

MINAMI Masataka, 中川 周士, 新井 祐志, 井上 裕章, 渥美 覚, 市丸 昌平, 松浦 宏貴, 生駒 和也, 上島 圭一郎, 藤原 浩芳, 久保 俊一

doi:10.11551/jsjd.35.73

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Other Title

膝関節後方に発生した滑膜骨軟骨腫症に対してPosterior Trans-Septal Approachを用いて関節鏡下遊離体摘出術を施行した1例
症例報告膝関節後方に発生した滑膜骨軟骨腫症に対してPosterior Trans-Septal Approachを用いて関節鏡下遊離体摘出術を施行した1例
ショウレイホウコクシツカンセツコウホウニハッセイシタカツマクコツナンコツシュショウニタイシテ Posterior Trans-Septal Approach オモチイテカンセツキョウカユウリタイテキシュツジュツオシコウシタ 1レイ

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Abstract

We treated a case of synovial osteochondromatosis in the right knee posterior septum using arthroscopy with a posterior trans-septal approach. The patient was a 64-year old female who complained of discomfort and pain upon flexion and extension, with restricted range of motion (ROM). X-ray and computed tomography imaging revealed several osteochondromas at the posterior compartment of the knee. The patient was diagnosed with osteochondromatosis of the right knee, and an arthroscopic examination was performed. Briefly, we made a posteromedial portal for arthroscopic observation by passing the arthroscope between the posterior cruciate ligament and intercondylar notch. After dissection of the posterior septum from the posteromedial portal, we created a posterolateral portal. By observation and operation from the posteromedial and posterolateral portals, osteochondromas at the posterior septum and posterior compartment of the knee were removed effectively. At a 12-month follow-up, the patient was pain-free with a full ROM. It is difficult to remove osteochondromas at the posterior compartment of the knee through the conventional anteromedial and anterolateral portals. However, a posterior trans-septal approach may be an easier way to undertake such challenging surgery.

Journal

Japanese Journal of Joint Diseases

Japanese Journal of Joint Diseases 35 (1), 73-76, 2016

Japanese Society for Joint Diseases

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