Objective: This represents a prospective clinical case series to assess the efficacy of low-level laser therapy (LLLT) in treating delayed union of hip sub-trochanteric fracture after intra-medullary nailingMaterials and Methods: the study period of the clinical case series lasted from 2014 to 2018. Serial unselected patients with delayed union of hip sub-trochanteric fractures who consented for a course of non invasive LLLT administered on alternate days for a period of 12 weeks with a view to improve bony healing entered the study. Radiographs were taken at intervals of 4 weeks to assess for evidence of radiological bone healing. Only non-pathological sub-trochanteric fractures were included as underlying malignancy contraindicates the use of laser.Results: among the study population of 13 subjects, there was only one subject whose delayed union failed to respond positively to 12 weeks of LLLT treatment. All remaining 12 subjects went on to solid radiological union (p value less than 0.5)Conclusion: Use of 12 weeks of non invasive LLLT treatment is clinically effective in managing delayed union of hip sub-trochanteric fractures without resort to revision surgery and/or bone grafting.
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