Understanding Hock Joint Problems in Dogs

The hock, analogous to our ankle, is a complex joint essential for a dog's movement. Various conditions, such as trauma, severe arthritis, tendon problems, or congenital anomalies, can compromise its stability and functionality. When non-surgical interventions no longer provide relief, pantarsal arthrodesis, a surgical fusion of the joint, may be the next step.

Pantarsal Arthrodesis: A Stable Solution

This procedure aims to alleviate pain and enhance stability by permanently fusing the bones in the hock joint, immobilizing it.

Steps involved in Pantarsal Arthrodesis

1. Preoperative assessment: X-rays are taken to evaluate the extent of joint damage and plan the fusion. Occasionally, a CT scan may be required for planning.
2. Joint preparation: Diseased and damaged cartilage is removed, preparing the bone surfaces for fusion.
3. Positioning: The bones are aligned in their optimal position to support weight-bearing.
4. Fixation: Bone plates and screws are utilized to secure the bones in place.
5. Bone grafting: Bone graft is taken from the shoulder and added to the site to stimulate and expedite fusion.

Post-Procedure Care

At VetSurg:

• Your pet will be observed overnight to guarantee pain management, monitor early recovery, and address any post-operative concerns with our 24/7 on-site team. Sometimes patients may stay two nights with us.

At Home:

• Week 1-2: Absolute restriction on running, jumping, or climbing. Short leash walks for bathroom breaks are recommended. The surgical site should be kept clean and dry, and the provided Elizabethan collar is essential. A two-week check-up will be scheduled to assess healing.
• Week 3-12: Gradual increase in the duration of leash walks under vet guidance. An eight-week appointment will be arranged for a follow-up x-ray to ensure proper bone fusion. We might need to take some further X-rays at around twelve to sixteen weeks after surgery.

What's the Expected Outcome?

The outcome depends on the initial condition, the surgery's complexity, and post-operative care.

• Pain Management: The primary goal is to alleviate pain by addressing joint instability.
• Stability and function: Post pantarsal arthrodesis, most dogs experience a marked improvement in limb stability, adapting to their fused hock remarkably.

Potential Challenges

While pantarsal arthrodesis is largely successful, it’s important to be aware of potential complications:

• Non-union: In some cases, the bones may not fuse as desired.
• Infection: A minimal risk exists, but if it does occur we’re equipped with effective management strategies. Post-healing, any implants can be removed if deemed necessary.
• Implant complications: Proper aftercare is essential to avoid complications related to screws or plates.
• Altered gait: Some dogs might initially exhibit a changed walking pattern but usually adapt over time.

While potential complications exist, pantarsal arthrodesis is a pathway to a more comfortable and active life for dogs dealing with severe hock joint issues. Your dog's full return to normal activity may take several months, but with diligence and proper care, they can enjoy a pain-free, active life once again.