Early results of Rotating Platform total knee replacement.

Area of Science:

• Orthopedic Surgery
• Biomedical Engineering
• Medical Device Technology

Background:

• The Press Fit Condylar Rotating Platform (PFC-RP) prosthesis combines Low Contact Stress (LCS) rotating platform technology with Press Fit Condylar (PFC) system modularity.
• This prosthesis was introduced in Malaysia in 2001.
• Early clinical experience with novel orthopedic implants is crucial for assessing efficacy and safety.

Purpose of the Study:

• To report early experiences and outcomes of the PFC-RP total knee replacement.
• To evaluate the initial performance of this hybrid prosthesis in a clinical setting.
• To assess post-operative pain, range of motion, and functional scores.

Main Methods:

• Eighteen knee replacements were performed using cruciate-retaining prostheses without patellar resurfacing in 10 patients.
• A novel operative strategy was employed to optimize flexion and extension gaps.
• Pre- and post-operative assessments utilized the American Knee Society Scores (AKSS).

Main Results:

• Significant improvements were observed in post-operative pain relief, range of motion, knee scores (average 28 to 91), and functional scores (average 26 to 82).
• Radiographic assessment showed correction of pre-operative varus to post-operative valgus.
• Two cases of early infection were successfully managed with debridement and antibiotics; one patient experienced stiffness.

Conclusions:

• The PFC-RP total knee replacement demonstrates promising early clinical results, with good implant performance at the one-year follow-up.
• The hybrid design appears effective in improving patient function and pain.
• Continued monitoring of this patient cohort is warranted to assess long-term outcomes.