The management of avascular necrosis of the capitellum of the adolesce
nt elbow continues to be a dilemma. This article is a critical retrosp
ective analysis of 12 pediatric patients (mean age at surgery 14.5 yea
rs) who underwent arthroscopic debridement alone followed by early ran
ge of motion. Follow-up at a mean of 3.2 years (range, 2.0 to 5.7 year
s) indicated that the average flexion contracture improved from 23 deg
rees preoperatively to 10 degrees postoperatively. All patients had re
modeling of the capitellum by plain radiographs; however, five patient
s had associated enlargement of the radial head. Eleven patients had m
inimal mechanical symptoms after the procedure and were highly satisfi
ed. One patient had substantial enlargement of the radial head with co
ntinued loss of supination and mechanical symptoms requiring radial he
ad resection 2 years after the index procedure. Five patients had a tr
iangular avulsion fragment present off the lateral capsule. A statisti
cally significant worse subjective outcome was associated with the pre
sence of this fragment (P < .005). There were no complications.