الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 109 |  |  |
| | | from | 109 | | |
Abstract
Muscle weakness of the lower extremities and restriction of knee extension in knee OA have been considered to be associated with loss of LL and abnormal posture. However, malalignment of the lower extremities and limited range of motion of the knee, particularly extension, can be improved by TKA. This study was conducted at Mansoura University Hospitals aiming to assess the influence of total knee arthroplasty on spinopelvic balance, and to evaluate the changes of spinopelvic balance after total knee arthroplasty by measuring the spinopelvic parameters pre and post operatively. We included a total of 40 cases prepared for total knee arthroplasty. They had a mean ager of 56.93 years. Most of the included cases were females (85%) while the remaining cases were males. All cases were subjected to complete history taking, thorough physical examination, and routine pre-operative laboratory and radiological investigations. Additionally, preoperative lumbosacral and pelvis lateral radiographs in standing position were done. Also, spino pelvic parameters including pelvic incidence, pelvic tilt, sacral slope and lumbar lordosis will be measured using sagittal meter pro program. All cases underwent TKA. Three weeks after operation, postoperative lumbosacral and pelvis lateral radiographs in standing position were obtained. There were no significant changes encountered in both pelvic incidence and pelvic tilt when compared to their values before operation (p = 0.168 and 0.618 respectively). Besides, these two parameters did not differ either between deformity and non-deformity cases, or between cases with BMI higher or lower than 30 kg/m2. Sacral slope showed a significant increase from 39.98 before treatment up to 40.65 after TKA (p = 0.042). The degree of improvement was markedly better in the deformity group compared to cases without deformity. Nevertheless, it did not differ between cases with BMI higher or lower than 30 kg/m2. L1S1 angle increased significantly from 51.2 before surgery up to 51.78 after operation (p = 0.023). Conversely, L4S1 angle did not express these significant changes (it changes from 30.08 before treatment to 30.15 after operation – p = 0.730). Moreover, there were no significant changes between deformity and non-deformity cases regarding these two parameters. Also, BMI did not have any significant impact on both parameters.