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Table 2 Comparison of postoperative complications

From: The analgesic efficacy of extracorporeal shock wave combined with percutaneous vertebroplasty in the treatment of osteoporotic thoracolumbar compression fractures in postmenopausal women

Item Group χ2 P
U-PKP group (n = 21) B-PKP group (n = 20) EP-PVP group (n = 18)
Cement leakage rate [n (%)] 2 (9.52) 2 (5) 4 (22.22) 1.66 0.44
Diffusion of bone cement [n (%)] 21 (100) 20 (100) 18 (100) 25.01 < 0.01
Mass type [n (%)] 2 (9.52) 2 (10) 0 (0)*   
Mixed type [n (%)] 17 (80.96) 15 (75) 7 (38.89)*   
Diffuse type [n (%)] 2 (9.52) 3 (15) 11 (61.11)*   
Refracture rate [n (%)] 1 (4.76) 1 (5) 1 ( 5.56) 0.01 0.99
  1. *P < 0.05 vs. the other 2 groups