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Published on: June 6, 2025
A comparison between orthogonal and parallel plating methods for distal humerus fractures: a prospective randomized
Sang Ki Lee1, Kap Jung Kim, Kyung Hoon Park
1Department of Orthopedic Surgery, Eulji University College of Medicine, 1306 Dunsan-dong, Seo-gu, Daejeon, 302-799, Korea, sklee@eulji.ac.kr.
Summary
Orthogonal and parallel plating methods for distal humerus fractures show similar clinical and radiographic outcomes. No significant differences were found in union time or complication rates between the two surgical techniques.
Area of Science:
- Orthopedic Surgery
- Traumatology
- Biomedical Engineering
Background:
- Advancements in distal humerus fracture implants necessitate evaluating newer plating techniques.
- Anatomically precontoured plates aim to improve outcomes and reduce soft tissue irritation.
Purpose of the Study:
- To compare clinical and radiographic outcomes of orthogonal versus parallel plating for distal humerus fractures.
- Evaluate the efficacy of precontoured distal humerus plates in different fixation configurations.
Main Methods:
- Prospective study involving 67 patients with distal humerus fractures.
- Randomized assignment to either orthogonal or parallel plating using precontoured plates.
- Assessment of operating time, fracture union, articular step/gap, angulation, functional recovery, and complications.
Main Results:
- No significant intergroup differences in radiological or clinical outcomes were observed.
- Mean operation time, union time, and complication rates were comparable between orthogonal and parallel plating.
- No cases of fracture nonunion; heterotopic ossification occurred in 3 patients (orthogonal) and 2 (parallel).
Conclusions:
- Both orthogonal and parallel plating methods demonstrate comparable clinical outcomes and complication rates for distal humerus fractures.
- Orthogonal plating may offer advantages for coronal shear fractures due to enhanced stability.
- Parallel plating might be preferred for fractures at the most distal humerus.
