Locked stifle joints are a common problem in horses which can cause mild to moderate discomfort. In this article, we will discuss the causes, symptoms, diagnosis, and treatment options for locked stifles in horses.
Causes of Locked Stifle Joints
The exact cause of locked stifles isn’t known, but it’s believed to be associated with conformation factors such as straight limbs and a weakness of the quadriceps. Young horses may also experience locked stifles as their muscles develop fully. When the patella fails to disengage from the bony ridge, the leg remains extended, resulting in a characteristic stance seen in horses with a locking patella.

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Symptoms of Locked Stifle Joints
- Difficulty flexing the hind leg forward
- Dragging the hind leg while walking
- Stiffness and reluctance to move
Diagnosing Locked Stifle Joints
If you notice any of the above symptoms in your horse, it is important to consult a veterinarian for a proper diagnosis. The vet will physically examine the horse and may perform additional tests such as X-rays or ultrasound to confirm the presence of a locked stifle joint.
Treatment for Locked Stifle Joints | Success Rate |
---|---|
Conditioning and corrective shoeing | Some cases may resolve |
Surgical options (e.g., “splitting” technique) | Considered for stubborn cases |
Conditioning and corrective shoeing can help resolve mild cases of locked stifles. This involves a structured exercise program to strengthen the horse’s muscles and improve their overall fitness. Corrective shoeing techniques, such as providing proper support and balance to the hooves, can also contribute to relieving the symptoms. In more severe or persistent cases, surgical options like the “splitting” technique may be considered. This involves making small incisions in the medial patellar ligament to release the tension and allow the patella to move freely.
Unlocking a Locked Stifle
If you suspect your horse has a locked stifle, you can try the following technique with the help of a handler:
- Make contact with the horse and place the heel of your hand against the patella
- Allow the horse to adjust to the feel of your hand
- Push hard inward on the patella
- Simultaneously, have your handler walk the horse backwards a few steps
- You should hear a “pop” sound, indicating the release of the stifle joint
It is important to note that unlocking a locked stifle should only be attempted under the guidance of a veterinarian, as improper techniques can cause further injury to the horse.
Preventing Locked Stifles
While there is no foolproof way to prevent locked stifles in horses, certain measures can help reduce the risk:
- Regular exercise and conditioning to strengthen the muscles
- Maintaining proper hoof care and balance
- Avoid overfeeding or rapid growth in young horses
- Regular veterinary check-ups to monitor any developing issues
By incorporating these practices into your horse’s routine, you can minimize the chances of developing locked stifles.

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Frequently Asked Questions For Locked Stifle Joints In Horses
How Do You Treat A Locking Stifle On A Horse?
To treat a locking stifle on a horse, conditioning and corrective shoeing can be effective in some cases. However, stubborn cases may require surgical options such as “splitting,” where small incisions are made in the medial patellar ligament. Rest, anti-inflammatory medication, and stifle injections can also be helpful.
Young horses may naturally grow out of the condition as their muscles develop.
How Do You Unlock A Locked Stifle?
To unlock a locked stifle, apply pressure on the patella with your hand and have the horse walk backward to release the joint.
Can Horses Grow Out Of Locking Stifle?
Most young horses outgrow locking stifle as their muscles develop. Conditioning and corrective shoeing can also help, while stubborn cases may need surgical options like ‘splitting’ the medial patellar ligament to resolve the issue. Rest, anti-inflammatory medication, and stifle injections can aid in stifle injury treatment.
How Can I Help My Horse With Stifle Problems?
To help your horse with stifle problems, focus on conditioning and corrective shoeing. Surgery may be necessary for severe cases. Rest, anti-inflammatory medication, and stifle injections can provide relief. Young horses often grow out of this condition as their muscles develop.
Exercise, corrective shoeing, and hoof trimming are effective remedies.
Conclusion
Locked stifle joints in horses can be a source of discomfort and reduced mobility. By understanding the causes, symptoms, and treatment options, you can take appropriate measures to address this issue. Consulting with a veterinarian and following their recommended treatment plan is crucial for the well-being and recovery of your horse. With proper care, many cases of locked stifles can be effectively managed, allowing your horse to lead a healthy and active life.