Clinical Report: Utilization of Autologous Distal Femoral Condyle Graft for Patellar Reconstruction
Overview
This case study presents a 48-year-old woman with post-traumatic knee ankylosis treated with total knee arthroplasty (TKA) and autologous distal femoral condyle graft for patellar reconstruction. At 10 months postoperatively, significant improvements in range of motion and Knee Society Score were observed.
Background
Post-traumatic knee ankylosis is a rare but challenging condition that can severely limit function, particularly after patellectomy. The absence of the patella affects extensor mechanism efficiency, complicating total knee arthroplasty (TKA) outcomes. Understanding effective reconstruction strategies is crucial for improving patient satisfaction and functional recovery.
Data Highlights
Outcome Measure
Preoperative
Postoperative (10 months)
Range of Motion (ROM)
0°–15°
0°–120°
Knee Society Score (KSS) - Pain
40
50
Knee Society Score (KSS) - Function
13
69
Key Findings
Post-traumatic knee ankylosis after patellectomy presents unique surgical challenges.
The patient achieved a range of motion improvement from 0°–15° to 0°–120° post-TKA.
Knee Society Score improved significantly, indicating enhanced pain and function.
Autologous distal femoral condyle graft can serve as a viable patellar substitute in TKA.
Long-term outcomes and advantages over TKA alone require further investigation.
Clinical Implications
This case highlights the potential for autologous grafts in complex knee reconstructions, particularly in patients with prior patellectomy. Clinicians should consider the biological advantages of autologous grafts while being aware of the risks of resorption and nonunion.
Conclusion
The combination of TKA and autologous patellar reconstruction in this case demonstrated acceptable short-term outcomes. Further studies are needed to assess long-term durability and effectiveness compared to standard TKA.
