Patellofemoral arthroplasty for symptomatic nonunion after trochlear osteotomy for patellar instability: a case report.
BACKGROUND
Patients with patellofemoral instability with trochlear dysplasia may be treated with trochlear osteotomy.


METHODS
We present a patient with patellofemoral instability treated with trochlear osteotomy. The procedure resulted in nonunion with painful bony impingement and isolated patellofemoral osteoarthritis. Patellofemoral arthroplasty was performed.


CONCLUSIONS
Patellofemoral arthroplasty may be considered a salvage procedure for failed surgical treatment for trochlear dysplasia.
van Jonbergen
Hans-Peter W
HP
Department of Orthopaedic Surgery, Deventer Hospital, Nico Bolkesteinlaan 75, 7416 SE Deventer, The Netherlands.
van Egmond
Kees
K