EVALUATION OF MANAGEMENT OF TIBIAL NON-UNION DEFECT WITH ILIZAROV FIXATOR
AbstractBackground: Tibial bone defect lead to limb shortening and functional deficit and needs propertreatment. There are various treatment modalities for bone defect in long bone to restore lengthand function of the limb, i.e. bone grafting, vascularised bone graft, allograft and bone transport.Bone transport can be done through fixators (uniplaner or ring) and intramedullary nail system.This study was conducted on management of tibial non-union with Illizarov external fixator.METHOD: This descriptive study was performed on 58 patients in Agency Headquarter Hospital,Bajawar and Lady Reading Hospital, Peshawar, from January 2000 to January 2006. Patients ofeither gender with age between 9 to 58 years, having nonunion (clean and infected nonunion) intibia with defect of 2 to 7cm due to trauma or firearm injury were included in the study. Thesepatients were followed up upto one year. Outcome measures were according to the classificationof Association for the Study and Application of the Method of Ilizarov (ASAMI), which is basedon radiological (defect filling) and clinical (functional) findings. RESULTS: Out of 58 patients,44 (75%) were male and 14 (25%) were female. Mean age was 30 years (9 to 58 years). 38(65.52%) patients had infected non-union while 20 (34.48%) had clean non-union. Right tibia wasinvolved in 32 patients (51.17%) and left was involved in 26 (44.83%) patients. The cause ofinitial trauma was road traffic accident in 27 patients (46.55%), firearm injury in 23 patients(39.65%) and a simple fall in 8 patients (13.79%). The length of average bone defect was 2.90 cm(200-7.00cm). Radiological results were excellent in 33 (58.89%) patients, good in 12 (20.68%)patients, fair in 8 (13.79%) patients and poor in 5 (8.62%) patients. The clinical results wereexcellent in 33 patients (56.89%), good in 18 patients (31.05%), fair in 4 (6.89%) patients andpoor in 3 patients (5.17%). CONCLUSION: Ilizarov ring fixator is excellent treatment modalityfor tibial non-union with a defect, regarding bone union, deformity correction, infectioneradication, limb length achievement and limb function but this needs prolonged learning curvefor fresh orthopedic surgeons.Key words: Tibia; Nonunion; Bone Transport; Ilizarov fixator
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