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Table 3 Comparisons of the constituent ratio of categorical variable data between flaps that survived and flaps with partial necrosis

From: Utilisation of distally based sural fasciocutaneous flaps in lower extremity reconstruction: a single-centre experience with 88 paediatric patients

  Flaps that survived
(n = 80)
N (%)
Flaps with partial necrosis
(n = 8)
N (%)
χ2 p
Pivot point (above tip of lateral malleolus)     0.678*
 ≤ 6 cm 59 (92.2) 5 (7.8)   
 > 6 cm 21 (87.5) 3 (12.5)   
Top-edge location     0.004*
 The 8th zone or lower zone 63 (96.9) 2 (3.1)   
 The 9th zone 17 (73.9) 6 (26.1)   
Length-width ratio     0.020*
2.50 ≤ LWR < 5:1 70 (94.6) 4 (5.4)   
5 ≤ LWR ≤ 6:1 10 (71.4) 4 (28.6)   
Width of the skin island     0.459*
 4.0 cm ≤ width < 8.0 cm 35 (94.6) 2 (5.4)   
 8.0 cm ≤ width ≤ 13.0 cm 45 (88.2) 6 (11.8)   
Dimension of skin island    12.809 0.002
 < 80.0 cm2 45 (100.0) 0 (0.0)   
 80.0 cm2 ≤ dimension < 100.0 cm2 18 (85.7) 3 (14.3)   
 ≥ 100.0 cm2 17(77.3) 5(22.7)   
  1. *Fisher’s exact test