Table 2.

Summary of the main surgical procedures used to treat the patella maltracking after TKA described in the included studies

Surgical procedure	Reference studies
Lateral retinaculum release	[9, 49, 50, , 51, 52, 18, 56, 57, 60, 61, 63]
Partial lateral patella facectomy	[64]
Medial relief (medial plication, advancement of VMO, V–Y quadricepsplasty)	[52, 18, 57, 63, 64]
MPFL reconstruction	[54, 60, 61, 52]
Extensor mechanism realignment: ◦ proximal realignment (Insall procedure) ◦ distal realignment: -ATT transposition (Hauser, Fulkerstone, Emslie-Trillat procedures) - Roux-Goldthwait procedures	[9, 48] [48, 51, 18, 53, 56, 57, 60] [53]
Prosthetic components revision	[9, 48, 18, 55, 56, 58, 59, 62, 63, 65]
Corrective osteotomy	[66, 52]