In vivo stability of total knee arthroplasty using a navigation system
| Autor: | Sang Gwon Cho, Jong Keun Seon, Bong Hyun Bae, Sang Jin Park, Taek Rim Yoon, Eun Kyoo Song |
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| Rok vydání: | 2006 |
| Předmět: |
musculoskeletal diseases
Joint Instability Male medicine.medical_specialty Knee Joint Radiography medicine.medical_treatment Total knee arthroplasty Postoperative Complications medicine Humans Orthopedics and Sports Medicine Range of Motion Articular Arthroplasty Replacement Knee Orthodontics Original Paper business.industry Navigation system musculoskeletal system Arthroplasty Surgery medicine.anatomical_structure Surgery Computer-Assisted Posterior cruciate ligament Orthopedic surgery Female business Range of motion |
| Zdroj: | International orthopaedics. 31(1) |
| ISSN: | 0341-2695 |
| Popis: | The aim of this study was to evaluate in vivo stability for mediolateral laxity in extension and anteroposterior laxity in 90 degrees of flexion and to correlate these and the range of motion (ROM) in 42 total knee arthroplasties (TKA) performed using a navigation system, with a minimum 1-year follow-up. The following parameters were measured at the final follow-up: mediolateral laxity in extension and anteroposterior laxity in 90 degrees of flexion as determined by stress radiographs and a Telos arthrometer, modified HSS scores (excluding laxity and range of motion) and the range of motion (ROM). The mean modified HSS score was 82% of 82 maximum allowable points, and the mean postoperative ROM was 128.1+/-10.4 degrees . Mean medial laxity was 3.5+/-1.4 degrees , mean lateral laxity was 4.4+/-2.2 degrees and mean anteroposterior laxity was 7.1+/-4.1 mm. We found no significant correlation between mediolateral laxity and postoperative ROM. However, a significant correlation was found between postoperative ROM and anteroposterior laxity. In conclusion, the use of a navigation system in TKA assists the surgeon to achieve good in vivo stability. Short-term clinical results are promising. |
| Databáze: | OpenAIRE |
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