Comparison of corticocancellous bone graft from the anterolateral metaphysis of the distal radius versus iliac crest for the treatment of unstable scaphoid nonunion with humpback deformity

Table 1 Patients’ characteristics

Variable	Group DR (n = 15)	Group IC (n = 23)	P-value
Age (years)	28.0 (IQR: 18.0–35.8)	26.0 (IQR: 20.3–38.0)	.765
Sex (M/F)	15:0	23:0	.999
Interval of injury to surgery (years)	1.4 (1.1–2.9)	1.5 (IQR:1.0–2.8)	.495
Pre-treatment methods (none/splint or cast)	11:4	12:11	.335
Smoker (yes/no)	8/7	13/10	1.000
Number of screws used (1/2)	9/6	12/11	.888
Follow-up period, y	2.3 (IQR: 2.0–2.8)	2.4 (IQR: 2.0–3.2)	.949
Preoperative ISA, °	68.0 (IQR: 60.8–70.0)	65.0 (IQR: 56.3–72.8)	.822
Preoperative RLA, °	33.0 (IQR: 29.3–35.0)	30.0 (IQR: 23.3–33.8)	.072
Preoperative SLA, °	76.0 (IQR: 70.5–77.8)	72.0 (IQR: 70.0–76.5)	.208

Values are expressed as a median with interquartile range (IQR) in parenthesis for continuous variables and as a frequency or ratio for discrete variables
The chi-square test (or Fisher exact test) was used to analyze discrete variables, and the Mann–Whitney test was used to analyze continuous variables
Group DR, corticocancellous bone graft from the anterolateral metaphysis of the distal radius; group IC, corticocancellous bone graft from the iliac crest; M male, F female, ISA intrascaphoid angle, RLA radiolunate angle, SLA scapholunate angle

ISSN: 1471-2474