Table 2 Comparisons between group A (re-operation) and group B (no re-operation)–demographics
Group A n = 7 | Group B n = 20 | P value/test | |
|---|---|---|---|
Age (Mean ± SD) | 16.3 ± 1.6 years | 17.1 ± 2.4 years | n.s.c |
Gender (n/%) | |||
Male | 2/28.6 | 8/40.0 | n.s.b |
Female | 5/71.4 | 12/60.0 | |
BMI (Median, range) | 21.7 kg/m2 (20.3–34.9 kg/m2) | 23.6 kg/m2 (18.0–39.3 kg/m2) | n.s.a |
Lesion location | |||
Medial | 5/71.4 | 12/60.0 | n.s.b |
Central | 0 | 0 | |
Lateral | 2/28.6 | 8/40.0 | |
Corresponding distal tibia lesion (n/%) | |||
Yes | 0 | 1/5.0 | n.s.b |
No | 7/100.0 | 19/95.0 | |
Growth plate distal tibia/fibula (n/%) | |||
Open | 0 | 1/5.0 | |
Closed | 7/100.0 | 19/95.0 | |
Side (n/%) | |||
Right | 4/57.1 | 9/45.0 | n.s.b |
Left | 3/42.9 | 11/55.0 | |
Aetiology (n/%) | |||
Idiopathic | 2/28.6 | 6/30.0 | n.s.b |
Acute traumatic | 2/28.6 | 5/25.0 | |
Chronic traumatic | 3/42.9 | 9/45.0 | |
BHL classification (n/%) | |||
1 | 0 | 2/10.0 | n.s.b |
2 | 2/28.6 | 5/25.0 | |
3 | 4/57.1 | 10/50.0 | |
4 | 1/14.3 | 3/15.0 | |
5 | 0 | 0 | |
ICRS classification intraoperative (n/%) Missing data n = 2 | |||
0 | 0 | 0 | 0.001b |
1 | 1/16.7 | 5/26.3 | |
2 | 2/33.3 | 1/5.3 | |
3 | 2/33.3 | 0 | |
4 | 1/16.7 | 13/68.4 | |
Operative technique (n/%) | |||
Arthroscopy, BMS | 2/25.0 | 6/75.0 | – |
Arthroscopy, retrograde drilling | 4/50.0 | 4/50.0 | |
Arthroscopy, BMS + retrograde drilling | 0 | 1/100.0 | |
Arthrotomy, flake fixation | 0 | 1/100.0 | |
ACI + autologous bone grafting | 1/11.1 | 8/88.9 | |