Pontoh Ludwig Andre, Dilogo Ismail Hadisoebroto, Hartono Franky, Rhatomy Sholahuddin, Fiolin Jessica
Department of Orthopaedic and Traumatology, Fatmawati General Hospital, Faculty of Medicine Universitas Indonesia, Jl. RS Fatmawati no. 4, Jakarta Selatan, 12430, Indonesia.
Department of Orthopaedic and Traumatology, Dr. Cipto Mangunkusumo General Hospital, Faculty of Medicine Universitas Indonesia, Jl. Diponegoro no. 71, Jakarta Pusat, 10430, Indonesia.
Int J Surg Case Rep. 2021 Feb;79:371-374. doi: 10.1016/j.ijscr.2021.01.057. Epub 2021 Jan 20.
Dislocation of polyethylene insert is one of the most common complications of mobile bearing-medial unicompartmental knee arthroplasty (MUKA). Bearing dislocation was diagnosed by radiograph examination in these cases upon trivial injury.
We reported one case of meniscal bearing dislocation after an Oxford MUKA treated with a simple open reduction technique.
Simple open reduction surgery without change of the bearing and the use of knee brace for 6 months was effective in preventing re-dislocation.
Mobile bearing dislocation is one of the most common complications in mobile-bearing MUKA. Besides the prevention of technical errors, usage of UKA with a frequency of 10-15 per year is recommended to increase the surgeon's learning curve.