Mayfield classification
Pronunciation: MAY-field
Staging system for progressive perilunate instability patterns based on the sequence of ligamentous failure.
Full Definition
The Mayfield classification describes four progressive stages of perilunate instability based on the predictable pattern of ligamentous disruption that occurs with wrist trauma. Stage I involves scapholunate dissociation, Stage II adds capitolunate disruption, Stage III includes lunotriquetral dissociation (complete perilunate dislocation), and Stage IV represents lunate dislocation with complete disruption around the lunate. This classification system helps surgeons understand injury patterns, plan surgical approaches, and predict outcomes. The staging correlates with increasing energy of trauma and complexity of required reconstruction, making it valuable for treatment planning and prognostic discussions.
Usage
Usage note: Capitalize Mayfield as it is named after the describing surgeon.
In Context
- "Imaging revealed Mayfield Stage III injury with complete perilunate dislocation." — Radiological report
- "The Mayfield classification guided the surgical approach for carpal ligament reconstruction." — Operative planning