Arthroscopy of the coxofemoral joint of foals.

The research article is about a developed arthroscopic procedure for examining the coxofemoral joint in foals for evaluation and potential surgical treatment of intra-articular lesions.

Objective of the Research

• The research aimed at develping an arthroscopic procedure for scrutinizing the coxofemoral joint in foals. The procedure was developed to determine if sufficient access could be attained for evaluation and possible surgical treatment of intra-articular lesions.

Methodology

• Arthroscopic procedure was executed on nine foals divided into groups of cadavers (four) and anesthetized subjects (five).
• The foals’ joint was expanded and the arthroscope was inserted through the incisura trochanterica—a notch that lies between the anterior and posterior sections of the greater trochanter.
• Aided by this portal, the cranial, lateral, and caudal facets of the joint were inspected. Furthermore, an instrument portal which was located 2 to 4 cm anterior and 1 to 2 cm ventral to the arthroscope portal was used for mechanical distraction of the joint, giving access for examining the ligament of the head of the femur, the femoral head, and articular and nonarticular surfaces of the acetabulum.
• To enhance visualization of the craniomedial and caudomedial portions of the femoral head, the limb was adducted and rotated.
• Traction applied to the distal limb enabled visualization of similar structures that were seen when mechanical distraction was used and also created room for the placement of surgical instruments into the joint via the instrument portal.

Findings

• Accessibility to most regions of the joint was adequate; however, access was limited to the caudal and medial aspects of the joint.
• Three anesthetized foals were euthanized, and postmortem dissection of their coxofemoral joints was undertaken. It is not explicitly stated in the abstract but this might have been done to further inspect the joint and the impact of the procedure.
• The remaining two foals were allowed recovery from anaesthesia and were observed for 30 days after surgery. One of them exhibited mild lameness for two days post-surgery while the other foal displayed no lameness.
• Upon evaluation, it was observed that incisions healed and the coxofemoral joints appeared radiographically normal by day 30 post-operation.

Conclusion

• The procedure developed to examine the coxofemoral joint in foals was sufficiently successful, with minimal post-operative complications noted, yielding potential for its use in surgical treatment of intra-articular lesions.