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Joints and Ligaments - Horse Anatomy (view source)
Revision as of 16:29, 17 October 2012
, 16:29, 17 October 2012→Femoropatellar Joint
====Femoropatellar Joint====
====Femoropatellar Joint====
This moves in together with the femorotibial joint. The patella is anchored to the femur by the medial and lateral '''femoropatellar ligaments''' and to the tibia by three patellar ligaments:
The equine stifle has three patellar ligaments:
*'''Middle Patellar Ligament'''
*'''Middle Patellar Ligament'''
*'''Lateral Patellar Ligament'''
*'''Lateral Patellar Ligament'''
The lateral patellar ligament attaches to the cranio-lateral aspect of the '''[[Hindlimb - Anatomy & Physiology#Patella|patella]]''' and to the lateral aspect of the tibial tuberosity. This arrangement is crucial for the equine 'stay' apparatus and provides a '''locking ability'''.
The lateral patellar ligament attaches to the cranio-lateral aspect of the '''[[Hindlimb - Anatomy & Physiology#Patella|patella]]''' and to the lateral aspect of the tibial tuberosity. This arrangement is crucial for the equine 'stay' apparatus and provides a '''locking ability'''. This ligament contains tendinous tissue from the ''biceps femoris'' and ''tensor fasciae latae'' muscles.
*'''Medial Patellar Ligament'''
*'''Medial Patellar Ligament'''
The medial patellar ligament connects the parapatellar fibrocartilage to the medial aspect of the tibial tuberosity.
The medial patellar ligament connects the parapatellar fibrocartilage to the medial aspect of the tibial tuberosity. This ligament contains tendinous elements of the ''sartorius'' and ''gracilis'' muscles.
Contraction of the quadriceps while in rest enables the patella to be hooked over the trochlea of the femur due to the binding loop formed by the patella, middle and medial patellar ligaments. The '''femeropatellar joint''' capsule sometimes communicates with the '''lateral femerotibial''' cavity and usually with the '''medial'''. No communication exists between the femorotibial joints.
Contraction of the quadriceps while in rest enables the patella to be hooked over the trochlea of the femur due to the binding loop formed by the patella, middle and medial patellar ligaments. The '''femeropatellar joint''' capsule sometimes communicates with the '''lateral femerotibial''' cavity and usually with the '''medial'''. No communication exists between the femorotibial joints.