Follow up radiographs were graded for the presence of AVN by the Bucholz and Ogden method. Radiological outcome was graded by the Severin score. Average follow up was up to the age of 6.6 years (SD 2.9) for the closed reduction group, open reduction group 8.0 (SD 3.6) and femoral shortening group 9.0 (SD 3.9)
AVN scores
Closed Reduction (n=34) : Grade 1 : 5. Open Reduction (n= 11) : Grade 1: 2, Grade 2: 1, Grade 3: 1. Open, with shortening (n=24): Grade 1: 5, Grade 2: 1. Severin Scores: Closed I: 22 II:3 III:8 IV:0 Open I:6 II:1 III:2 IV:2 Shortening I: 8 II:8 III:3 IV:2
Average follow up was 47 months (range 22–65 months). The arc of elbow motion was 1040 (range 680_1400), with an average extension deficit of 230 (range 00–500) and an average flexion deficit of 200 (range 100–400). The average arc of forearm rotation was 1300 (range 00–1400), with an average supination of 660 (range 00–750), and an average pronation of 680 (range 00–800 ). The complications (N=17/32) included superficial skin infection (n=2), transient posterior interosseous nerve palsy (n=4), broken T -plate (n=1), intra-articular placement of a screw (n=1), loose and backed out screw (n=1), non-, union of radial head (n=2). Fixed flexion deformity if elbow (n=4) and mild elbow in stability (n=2). Second surgery was preformed in 18.7 % (n=6/32)(radial head replacement n=1, anterior capsulectomy n=4 and removal of screw n=1).