Results of treatment of subchondral bone cysts in the medial condyle of the equine femur with an autogenous cancellous bone graft.

The research article presents the outcomes of surgical treatments on 10 horses with subchondral bone cysts in the medial condyle of the femur. The majority of the cases employed a cancellous bone graft for treatment, while an extremely large cyst was treated using acrylic bone cement. Most of the horses made a satisfactory clinical recovery.

Overview of the Study

• The study focuses on a surgical procedure performed on 10 horses, all suffering from subchondral bone cysts specifically located in the medial condyle of the femur.
• This type of cyst is a common cause of lameness in horses, where pockets in the bone beneath the joint’s cartilage fill with fluid or become enlarged due to various reasons like trauma or degenerative diseases.
• These horses were treated mainly using cancellous bone graft in nine cases and exceptionally using two component acrylic bone cement in one case, which had a quite large cyst.

Surgical Treatment Procedure

• The primary treatment procedure was the utilization of an autogenous cancellous bone graft. This is a surgical procedure that involves transferring healthy bone tissue from one location in the horse to the location of the cyst.
• The cancellous bone graft is specially preferred due to its high revascularization capacity, potential for remodeling and its structural and biological characteristics which are necessary to promote healing.
• An experimental case used two component acrylic bone cement. This material is usually used in orthopaedics to fill up voids, provide support and stability to the surrounding bone structure.

Outcome of the Study

• Out of the ten cases, eight made a satisfactory clinical recovery following the surgical treatment.
• The results of this study indicate that the surgical treatment of subchondral bone cysts using a cancellous bone graft or in extreme cases, an acrylic bone cement, can lead to a positive clinical outcome in horses.
• However, further studies and a larger sample size may be required to confirm these findings, consider other treatment options and study long-term effects and recovery rate in detail.