PURPOSE: To assess functional outcomes in patients undergoing total knee arthroplasty (TKA) without previous corrective osteotomy for treatment of knee osteoarthritis associated with extra-articular deformity. METHODS: From January to December 2016, patients with knee osteoarthritis with extra-articular deformities who presented for preoperative assessment before TKA were evaluated prospectively. Physical and radiological characteristics were documented pre- and postoperatively. RESULTS: TKA was performed in 33 knees; 25 were considered for analysis. The mean age was 65.2 years (range, 48-79 years). Sixteen deformities were secondary to fractures and nine to failed osteotomies. The mean Knee Society Score (KSS) improved from 27.1 pre-operatively to 68.7 post-operatively (p = 0.000). Pre-operative mechanical axis ranged from 32° varus (negative) to 26° valgus. After correction, 20 knees were within 3° (varus or valgus) of mechanical alignment. CONCLUSION: In patients with extra-articular deformities, TKA with asymmetric intra-articular resection and ligament balancing can relieve pain and realign the mechanical axis of the lower limb.
PURPOSE: To assess functional outcomes in patients undergoing total knee arthroplasty (TKA) without previous corrective osteotomy for treatment of knee osteoarthritis associated with extra-articular deformity. METHODS: From January to December 2016, patients with knee osteoarthritis with extra-articular deformities who presented for preoperative assessment before TKA were evaluated prospectively. Physical and radiological characteristics were documented pre- and postoperatively. RESULTS: TKA was performed in 33 knees; 25 were considered for analysis. The mean age was 65.2 years (range, 48-79 years). Sixteen deformities were secondary to fractures and nine to failed osteotomies. The mean Knee Society Score (KSS) improved from 27.1 pre-operatively to 68.7 post-operatively (p = 0.000). Pre-operative mechanical axis ranged from 32° varus (negative) to 26° valgus. After correction, 20 knees were within 3° (varus or valgus) of mechanical alignment. CONCLUSION: In patients with extra-articular deformities, TKA with asymmetric intra-articular resection and ligament balancing can relieve pain and realign the mechanical axis of the lower limb.
Authors: Catherine Hui; Lucy J Salmon; Alison Kok; Heidi A Williams; Niels Hockers; Willem M van der Tempel; Rishi Chana; Leo A Pinczewski Journal: Am J Sports Med Date: 2010-09-10 Impact factor: 6.202
Authors: Nicholas G Weiss; Javad Parvizi; Arlen D Hanssen; Robert T Trousdale; David G Lewallen Journal: J Arthroplasty Date: 2003-04 Impact factor: 4.757
Authors: Abiram Bala; Colin T Penrose; Thorsten M Seyler; Richard C Mather; Samuel S Wellman; Michael P Bolognesi Journal: Knee Date: 2015-10-31 Impact factor: 2.199
Authors: Fabrício Bolpato Loures; Rogério Franco de Araújo Góes; Pedro José Labronici; João Maurício Barretto; Beni Olej Journal: Rev Bras Ortop Date: 2016-05-26