Knee Surg Relat Res 2019 Mar; 31(1): 76-80  https://doi.org/10.5792/ksrr.18.063
Core Decompression for Post-Arthroscopic Osteonecrosis of the Lateral Tibial Plateau
Harry W. Sargeant, MBChB, MRCS, Haroon Rehman, MBChB, MRCS, and George Zafiropoulos, FRCS, MD
Department of Trauma and Orthopaedic, Raigmore Hospital, NHS Highland, Inverness, UK
Correspondence to: Harry W. Sargeant, MBChB, MRCS Department of Trauma and Orthopaedic, Raigmore Hospital, NHS Highland, Inverness, UK Harry W. Sargeant’s current affiliation: Department of Trauma and Orthopaedic, Woodend Hospital, Eday Rd., Aberdeen AB15 6XS, UK Tel: +44-1224556148, Fax: +44-1224556376 E-mail: harrysargeant@gmail.com
Received: October 31, 2018; Revised: December 14, 2018; Accepted: December 14, 2018; Published online: March 1, 2019.
© Korean Knee Society. All rights reserved.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Post-arthroscopic osteonecrosis is a rare complication that mostly occurs in the over 50s. It most commonly occurs in the medial femoral condyle, followed by the lateral femoral condyle then medial tibial plateau. We report the first case of lateral tibial plateau osteonecrosis in a young patient after arthroscopic lateral meniscectomy. This patient developed progressively deteriorating symptoms after uncomplicated arthroscopy; with a subsequent magnetic resonance imaging (MRI) showing bone oedema and some overlying cartilage damage. Conservative measures were unsuccessful, so core decompression was undertaken. This has resulted in improved symptoms and subsequent follow-up MRI demonstrates resolution of oedema with no progressive cartilage change. This is a rare condition with a poor outcome, usually resulting in arthroplasty. This technique may work in the younger patient. However, since post-arthroscopic osteonecrosis is so rare in this age group, there is limited evidence for its success, and it should be evaluated with further study.
Keywords: Knee, Arthroscopy, Meniscectomy, Osteonecrosis

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