Mechanical carpus/metacarpus axis
Mechanical carpus/metacarpus axis
- Acronym: mCMA
Definition
The mechanical carpus/metacarpus axis is a landmark used to assess angular deformities of the carpus and provide guidance for corrections. It is determined from a craniocaudal radiograph or multiplanar reconstruction of the radius/ulna, carpus and metacarpus.
The mechanical carpus/metacarpus axis is defined by a line connecting the middle of the distal radial joint orientation line to the middle of the line joining the centers of the distal epiphyses of the 3rd and 4th metacarpals.
References
Goodrich et al. Thoracic Limb Alignment in Healthy Labrador Retrievers: Evaluation of Standing Versus Recumbent Frontal Plane Radiography. Veterinary Surgery 43 (2014) 791–803. DOI:10.1111/j.1532-950X.2014.12140.x
