Minimum Four-year Results in Patellar Components after Total Knee Arthroplasty

Autor: Hiroaki Sakata, Seiichirou Naruo, Keiichirou Okajima, Ryuji Tsutsumi, Haruo Takano, Yoshinori Nishi, Kouichi Ieiri
Rok vydání: 1998
Předmět:
Zdroj: Orthopedics & Traumatology. 47:1246-1249
ISSN: 1349-4333
0037-1033
DOI: 10.5035/nishiseisai.47.1246
Popis: 15 TKAs observed more than 4 years were examined for changes in the patellar position with the time. The patellar height and patellar tilt were measured by preoperative roentgenograms and postoperative roentgenograms at 4 weeks and more than 4 years, The range of motion (ROM) of the knee was compared with the measured value. 15 TKAs were classified into 2 groups by the ROM. 8 TKAs with ROM greater than preoperation were group A and 7 TKAs with ROM less than preoperation were group B. The average index of the patellar height in group B was 0.99 prior to operation, 1.01 at 4 weeks after operation, 0.83 at more than 4 years. Each was 1.001, 1.06, 0.97 respectively in group A. The patellar height showed a temporary high average after operation, but showed low at more than 4 years. The average tilting angle in group B was 5.9° prior to operation, 9.7° at four weeks, 9.3° at more than 4 years. Each 3.3°, 5.2°, and 6.0° respectively in group A.
Databáze: OpenAIRE