Influence of Posterior Tibial Slope on Kinematics After Cruciate-Retaining Total Knee Arthroplasty
| Autor: | Kosaku Oda, Toshitaka Fujito, Takaharu Yamazaki, Kazuomi Sugamoto, Tetsuya Tomita, Hideki Yoshikawa |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Male
musculoskeletal diseases Knee Joint Rotation medicine.medical_treatment Total knee arthroplasty Kinematics Prosthesis Weight-Bearing 03 medical and health sciences 0302 clinical medicine Humans Medicine Knee Orthopedics and Sports Medicine Femur Postoperative Period Tibia Range of Motion Articular Arthroplasty Replacement Knee Aged Retrospective Studies Aged 80 and over Orthodontics 030222 orthopedics Flexion angle business.industry 030229 sport sciences Osteoarthritis Knee musculoskeletal system Cruciate retaining Biomechanical Phenomena Female Posterior Cruciate Ligament Knee Prosthesis Range of motion business |
| Zdroj: | The Journal of Arthroplasty. 33:3778-3782.e1 |
| ISSN: | 0883-5403 |
| DOI: | 10.1016/j.arth.2018.07.029 |
| Popis: | Background The purpose of this study was to investigate the influence of posterior tibial slope (PTS) on knee kinematics after cruciate-retaining total knee arthroplasty (CR-TKA). These influences were evaluated using a prosthesis designed with high geometric conformity to the medial articular surface under the weight-bearing condition of deep knee bending. Methods We evaluated 71 knees (52 patients) after CR-TKA using 2- to 3-dimensional registration techniques. All patients were categorized into 2 groups: group A (PTS ≤ 7°) and group B (PTS ≥ 8°). We compared in vivo knee kinematics during deep knee bending under weight-bearing conditions between the 2 groups. The anteroposterior position of the nearest points, flexion angles, and external rotation angles of the femoral components relative to the tibial components were evaluated. Additionally, the knee flexion angles of the femur relative to the tibia obtained from the installation angles of the components were evaluated. Results PTS did not affect the external rotation angles and anteroposterior position. The postoperative maximum flexion angle and range of motion between the femur and tibia in group B were significantly greater than those in group A. Conclusion PTS of 8° or more in CR-TKA using prosthetics designed with high geometric conformity to the medial articular surface did not affect the anteroposterior position and external rotation, but increased the postoperative maximum flexion angle and range of motion. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect