"Grand-piano sign" as a femoral rotational indicator in both varus and valgus knees: a simulation study of anterior resection surface in total knee arthroplasty.
Yasuhiko KokubuShinya KawaharaSatoshi HamaiYukio AkasakiHidetoshi TsushimaShinji MiyachikaYasuharu NakashimaPublished in: Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA (2023)
IV, Case series.