Tanveer Haider, Aftab Ahmad, Ansar Latif, Muhammad Zahid Siddiq, Muhammad Nauman Akhter, Aimen Hunayun.
Frequency of Nonunion in Open Fractures of Tibia Treated with AO External Fixator.
Pak J Med Health Sci Jan ;13(1):17-9.

Aim: To determine the frequency of non union in open fracture of tibia fibula treated with AO external fixator. Setting: Department of Orthopedic Surgery, Khawaja Muhammad Safdar Medical College, Sialkot. Duration of study: 18 months (18 December 2016 to 17 June 2018) Results: According to our study, mean age of male patients was 33.87 (SD+/- 8.82) and in female patients mean age of patients was 34.31 (SD+/- 8.728).Out of 114 (100%), 60 (52.7%) were male and 54 (47.4%) were female. Similarly when we calculate time since injury, 39 (34.2%) patients were presented after 24 hours of injury, 40 (35.1%) after 48 hours and 35 (30.7%) after 72 hours since injury. As concern to the site of fracture out of 114 patients 39 (34.2%) were have upper third site, 38 (33.3%) were have Middle third and 37 (32.5%) were have lower third site of injury. When we calculated outcome variable, non union was present in 19 (16.7%) and absent in 95 (83.3%) patients. Conclusion: AO External fixator is a successful technique in the managing the patients with open tibial fractures.

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