Table 1.

Clinical details of patients

Age (in years)/Sex	Diagnosis	Cause	Type of prosthesis	Type of revision	Associated procedures	ROM
68/F	OA, 20° valgus	Imbalanced gap, exhaustive release, PCL incompetence	CR, Excel (Traider™)	PS (Nex Gen, Zimmer™), increasing the height of the polythene insert	–	0–95°
65/F	OA, 15° valgus	Imbalanced gap, excessive lateral release, wrong polyethylene insert selection	CR, Profix (Smith-Nephew™)	PS (Profix, S and N™), bigger polyethylene insert height, posterior augments	Extensor mechanism imbrication, reattachment and grafting of patellar tendon	5–100°
73/M	OA, varus	Malrotation, extensor mechanism luxation and incompetence, displaced joint line	CR, Profix revision	Semiconstrained, Nex-Gen LCCK (Zimmer™)	Rebuilding posterior and distal condyles, patellar distal reefing	5–110°
71/F	RA, valgus	Extensor mechanism incompetence. Late failure of MCL	PS (IB II, Zimmer™)	Rotating hinge (MRH. Stryker™)	Insall’s imbrication of extensor mechanism	0–110°, 20° lag from sitting position
70/F	OA, varus	Imbalanced gap, PCL incompetence	CR, Excel (Traider™)	PS, Nex-Gen (Zimmer™)	Reconstruction of posterior condyles	Infection Arthrodesis
65/F	OA varus	Imbalanced gap, tibial varus malpositioning	CR, Duraron (Stryker™)	PS (Genesis II, S and N™)	Transient peroneal nerve palsy, ascending geniculate occlusion	0–100°

OA: Osteoarthritis; CR: Cruciate-retaining; PS: Posterior-stabilized; MCL: Medial collateral ligament; PCL: Posterior cruciate ligament; ROM: Range of motion; M: Male, F: Female