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Table 3 Complications

From: Predictors of femoral shortening for pediatric developmental hip dysplasia surgery: an observational study in 435 patients

  All Hips
(n = 548)
Femoral shortening
(n = 119)
No Femoral shortening (n = 429) P Value Additional surgeries
Median Follow-up (IQR), months 27 (13–48.25) 25 (12–40.5) 28 (13–54) 0.096  
Recurrent displacement, % 31 (5.7) 6 (5) 25 (5.8) 0.917 21 hips underwent revision
Avascular necrosis, % 30 (5.5) 5 (4.2) 25 (5.8) 0.644 One patient had greater trochanter transfer
Cast related fractures, % 12 (2.2) 1 (0.8) 11 (2.6) 0.477 One patient had operative fixation of tibia fracture and one femur fracture reduced under general anaesthesia
Full thickness pressure ulcers, % 2 (0.4) 0 2 (0.5) 1  
Unplanned dirty cast change, % 7 (1.3) 1 (0.8) 6 (1.4) 1  
Deep surgical site infection, % 4 (0.7) 3 (2.5) 1 (0.2) 0.034 3 were debrided once, one hip required several surgeries
Superficial surgical site infection, % 1 (0.2) 0 1 (0.2) 1  
Other early postoperative infections 16 (2.9) 4 (3.4) 12 (2.8) 0.759  
persistent stifness 6 (1.1) 1 (0.8) 5 (1.2) 1 Three hips had manipulation under anaesthesia without substantial improvement
Leg length discrepancy (>  2 cm) 3 (0.5) 1 (0.8) 2 (0.5) 0.521  
Neurological injury 2 (0.4) 0 2 (0.5) 1 One femoral nerve transection and common peroneal nerve entrapment recovered after K-wire removal and cast change
  1. IQR interquartile rang