Isolated popliteus tendon injury does not lead to abnormal laxity in posterior-stabilised total knee arthroplasty - Ghosh, KM; Hunt, N; Blain, A; Athwal, KK; Longstaff, L; Amis, AA; Rushton, S; Deehan, DJ (KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY, 2015)