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Updated: Feb 1, 2026

Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
Total Knee Arthroplasty in Patients with Familial Patellar Absentia Syndrome: A 40-Year Update: A Case Report
Mikhail Khaimov1, Jordan Fakhoury2, Farhan Karim3
1Department of Joint Preservation and Adult Reconstruction, Northwell Health, Lenox Hill Hospital, New York, NY.
Case:
Isolated patella absentia is an extremely rare phenomenon, with only a few published cases and even fewer follow-up reports. Nearly 40 years after the initial presentation of 2 brothers with bilateral congenital absence of the patella and the publication of a case report, we report the clinical and radiographic findings of their subsequent tibiofemoral osteoarthritis, which was treated with bilateral total knee arthroplasty.
Conclusion:
Understanding the biomechanical complications associated with congenital absence of the patella as it relates to a stable knee is vital; in the case of degenerative changes, total knee arthroplasty appears to provide a long-term solution for these patients.
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