sub-luxations

Updated: May 25, 2025

Spasmodic contraction of the crural muscles which sometimes retains the patella in such position that the leg is rigidly extended, does not in itself constitute luxation of the patella; and unless this bone becomes lodged on the upper portion of a femoral condyle or laterally displaced out of its femoral groove, luxation cannot be said to exist in the horse. These are sub-luxations.

John Victor Lacroix - Lameness of the Horse: Veterinary Practitioners' Series, No. 1