PROXIMAL HUMERUS FRACTURE WITH LOCKING PLATE: FUNCTIONAL AND RADIOGRAPHIC RESULTS.
Rodrigo Souto Borges Petros1, Fabiano Rebouças Ribeiro1, Antonio Carlos Tenor1
1Shoulder and Elbow Group, Orthopedics and Traumatology Service, Hospital do Servidor Público Estadual de São Paulo (SOT/HSPE), São Paulo, SP, Brazil.
Acta Ortopedica Brasileira
|August 28, 2019
Summary
Neck-shaft angle variation after proximal humerus fracture fixation with a locking plate significantly impacts shoulder range of motion and functional outcomes. This radiographic measure can predict patient results.
Area of Science:
- Orthopedic Surgery
- Biomechanical Engineering
- Radiology
Background:
- Proximal humerus fractures are common injuries, often treated surgically.
- Locking plates are a standard fixation method.
- Understanding factors influencing functional outcomes is crucial for patient recovery.
Purpose of the Study:
- To correlate functional outcomes with radiographic indices in patients with proximal humerus fractures treated with locking plates.
- To identify specific radiographic parameters that predict functional results.
Main Methods:
- Seventy patients with proximal humerus fractures treated with locking plates were analyzed.
- Functional outcomes were assessed using the University of California, Los Angeles (UCLA) score and range of motion measurements.
- Radiographic assessments included neck-shaft angle variation in the anteroposterior plane.
- Graphical correlation was performed between radiographic measurements and functional outcomes.
Main Results:
- 78% of patients achieved good or excellent results based on the UCLA score.
- Mean range of motion: 130° elevation, 45° lateral rotation, and thumb-to-T10 medial rotation.
- Fracture type (Neer classification) and patient age correlated significantly with range of motion.
- A neck-shaft angle variation greater than 15° varus was associated with significantly lower mean elevation (p < 0.001).
Conclusions:
- Variation in the neck-shaft angle in the anteroposterior plane is a significant predictor of functional results after proximal humerus fracture fixation with a locking plate.
- This radiographic parameter can guide surgical decision-making and patient expectations.
Keywords:
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