Comparison of clinical outcomes between cruciate-retaining and posterior-stabilized total knee arthroplasty in patients with mild to moderate patellofemoral joint osteoarthritis - Report - MDSpire
Advertisement
Comparison of clinical outcomes between cruciate-retaining and posterior-stabilized total knee arthroplasty in patients with mild to moderate patellofemoral joint osteoarthritis
Clinical Report: Evaluation of Clinical Outcomes in TKA for PFJ Osteoarthritis
Overview
This study compares clinical and imaging outcomes in patients with mild to moderate patellofemoral joint osteoarthritis undergoing cruciate-retaining versus posterior-stabilized total knee arthroplasty. Key findings indicate that while both approaches yield similar clinical results, anterior knee pain is more prevalent in the posterior-stabilized group.
Background
Total knee arthroplasty (TKA) is a common surgical intervention for knee osteoarthritis, particularly in older patients. Understanding the differences in outcomes between cruciate-retaining (CR) and posterior-stabilized (PS) prostheses is essential for optimizing patient care. This study addresses a gap in the literature regarding the comparative effectiveness of these two prosthesis types without patellar resurfacing.
Data Highlights
Outcome
CR Group (n=107)
PS Group (n=109)
P-value
Anterior Knee Pain (AKP)
Lower Incidence
Higher Incidence
0.028
Range of Motion (ROM)
Lower
Better
<0.05
Knee Society Score (KSS)
No Significant Difference
No Significant Difference
>0.05
WOMAC
No Significant Difference
No Significant Difference
>0.05
Key Findings
The PS group exhibited a higher incidence of anterior knee pain compared to the CR group (p = 0.028).
Range of motion was significantly better in the PS TKA group (p < 0.05).
No significant differences were found in postoperative KSS and WOMAC scores between the two groups (P > 0.05).
Radiological evaluations showed no significant differences in HKA, FRA, PTA, and ISR between CR and PS groups (P > 0.05).
Both CR and PS TKA achieved excellent clinical and radiological early outcomes without patellar resurfacing.
Clinical Implications
Surgeons should consider the increased risk of anterior knee pain associated with posterior-stabilized TKA when selecting prosthesis types for patients with mild to moderate patellofemoral joint osteoarthritis. Both prosthesis types can provide satisfactory outcomes, but individual patient factors may influence the choice.
Conclusion
The findings suggest that TKA without patellar resurfacing can yield favorable outcomes for patients with PFJ osteoarthritis, with the choice between CR and PS prostheses having implications for postoperative pain management.
