Research progress in the treatment of distal humeral metaphyseal-diaphyseal junction fracture in children
Objective To summarize the research progress in the treatment of distal humeral metaphyseal-diaphyseal junction(DHMDJ)fractures in children and to provide reference for clinical practice.Methods The characteristics and treatment methods of transverse and comminuted DHMDJ fractures in children were summarized and analyzed by referring to relevant literature at home and abroad.Results DHMDJ fractures in children are not uncommon clinically,with high fracture line position,multi-directional instability,difficult closed reduction in treatment,and easy to cause complications such as coronal and sagittal deformity of the elbow.The Kirschner wire technique was effective for DHMDJ fractures with the fracture line at the middle and low levels,but was prone to iatrogenic ulnar nerve injury.Elastic stable intramedullary nail is suitable for higher-position transverse DHMDJ fractures.However,this technique requires a second operation to remove the internal fixator,and may cause iatrogenic epiphysis plate injury in children.External fixator is a new way to treat DHMDJ fractures,and it can show satisfactory results for transverse and comminuted DHMDJ fractures.However,at present,there are few relevant studies,and most of them focus on biomechanical studies,and the efficacy lacks high-quality clinical research support.Conclusion The ultimate goal of DHMDJ fracture treatment in children is to restore the anatomical alignment of the fracture and prevent the loss of reduction.The choice of internal fixator depends on the location of the fracture line and the shape of the fracture to provide personalized treatment.
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