Systematic Reviews
Copyright ©The Author(s) 2021.
World J Orthop. Aug 18, 2021; 12(8): 604-619
Published online Aug 18, 2021. doi: 10.5312/wjo.v12.i8.604
Table 1 Baseline characteristics of included studies
Ref.
Study design
Sample size
Age1, yr
Sex
Pipkin classification (I/II/III/IV)
Management
Implant
Follow up1, mo
M
F
Fixation
Excision
Henle et al[11], 2007Retrospective1239.8 (26-71)1021/3/0/8120Mini or small fragment cortical screws (2.0-2.7 mm) or Herbert screws or absorbable pins31.1 (3-96)
Solberg et al[12], 2009Retrospective12-1020/0/0/12111Headless variable-pitch screws or Herbert screws47 (24-71)
Mostafa et al[13], 2014Retrospective12---12/0/0120Partially threaded cancellous screws or Herbert headless screws31 (24-84)
Massè et al[14], 2015Retrospective1334 (22-54)1125/2/0/61302.7 mm nonabsorbable screws77 (26-122)
Gavaskar et al[15], 2015Prospective28---6/22/0/02622.4 mm headless screws (Synthes-India).36 (25-46)
Wang et al[16], 2019Prospective1239.9 ± 12.2844/3/0/51203.2 mm Herbert screws or partially threaded screws35 (25-48)
Engel et al[17], 2020Retrospective739.57 (17-64)430/0/0/761Buried headless screw29.8 (11.6-67.2)
Rana et al[18], 2020Retrospective642 (32-54)42-60Herbert (headless) screw10.8 (8-18)
Khalifa et al[19], 2020Retrospective2733.8 (18-45)2166/13/0/82704 mm partially threaded cancellous screws or Herbert headless screws48 (24-72)