The Journey Bicruciate Knee Replacement: Design modifications Yield Better Early Functional Results and Reduce Complications

J Knee Surg DOI: 10.1055/s-0040-1718599The Journey-I total knee replacement was designed to improve knee kinematics but had several complications including early dislocation. The Journey-II modification was introduced to reduce these while maintaining high function. To assess whether the modified Journey-II prosthesis has succeeded in its designers aims, we undertook an observational study of prospectively recorded data to analyze and compare the two knees. A total of 217 Journey-I and 129 Journey-II knees were identified from the department's prospectively collated registry and were assessed at 1 year by a comparative statistical analysis using numerous factors including pain, functional activity, physical assessment, Short Form-12 (SF-12), Western Ontario and McMaster Universities Arthritis Index (WOMAC), and Oxford scores. The statistical tests included Chi-square, Wilcoxon's rank and Mann–Whitney U-tests with the level of significance set at p < 0.05. There was a variation in primary patella resurfacing between the two groups with 14.3% in the Journey-I cohort and 66.7% in the Journey-II cohort. Both replacements demonstrated excellent postoperative function, but the Journey II performed significantly better than Journey I with fewer complications (37 vs. 10) and better improvement in almost all clinical scores including pain (p < 0.01), mobility outcomes (p = 0.018), Oxford (p = 0.004), and WOMAC (p = 0.039) scores but not with flexion improve...
Source: Journal of Knee Surgery - Category: Orthopaedics Authors: Tags: Original Article Source Type: research