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Post-traumatic Patellofemoral Ankylosis treated with Robotic Arm Assisted Patellofemoral Arthroplasty - A Case Report
Jishnu V Namboodiripad1, Thadi Mohan1
1Department of Orthopedics, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India.
Introduction:
This case report describes the procedure and 2-year outcome in a patient with bony patellofemoral ankylosis who underwent robotic arm-assisted patellofemoral arthroplasty (RA-PFA).
Case Report:
A 21-year-old male with Post-traumatic Patellofemoral Ankylosis with quadriceps contracture underwent RA-PFA with Quadriceps-plasty. Preoperatively, the patient had a flexion deformity of 20° with no further active flexion or extension. Passive knee extension from 20° to 0° was possible. At 2-years follow-up, he was independently ambulant with good improvement in pain and functional clinical scores. He had an improved active flexion of 0°-80° and active extension of 80°-0° with no extension lag.
Conclusion:
This case suggests RA-PFA may be an effective intervention to restore knee function in Post-traumatic Patellofemoral Ankylosis despite the grossly altered anatomy.
