Mechanical lateral proximal carpus/metacarpus angle

The mechanical lateral proximal carpal-metacarpal angle (mLPCMA) is a landmark used to assess angular deformities of the carpus and provide guidance for corrections. It is determined from a craniocaudal radiograph or a multiplanar reconstructed CT images of the radius/ulna, carpus and metacarpus.

The mechanical lateral proximal carpal-metacarpal angle is defined as the lateral angle lateral between the mechanical carpus/metacarpus axis and the distal radial joint orientation line.

Mean values of 84,5 +/- 4,0° and 83,5 +/- 3,9 ° have been reported for the mechanical lateral proximal carpal-metacarpal angle in recumbent and standing Labrador Retrievers respectively.