Surgical treatment of patella dislocation

There are many techniques available for treating patella luxation in dogs, cats and rabbits. Each species has its own anatomical particularities, so techniques need to be adapted and discussed at a pre-surgical appointment.

The aim of this surgery is to restore the alignment of the patella and stabilize it in its sliding axis along the femur.

The most common techniques are aimed at modifying the anatomy of the knee, and frequently involve osteotomies, i.e. cutting out a fragment of bone and repositioning it correctly. However, other alternatives are also being developed.

Depending on the severity of the dislocation (stage I to IV), corrective surgery will be more or less extensive, and post-operative follow-up longer.

What precautions should I take before having my pet operated on?

It is important to keep your pet at rest before surgery. Recommendations for fasting will be given to you when you book your appointment for surgery.

What are the risks associated with this procedure?

As with any surgical procedure, there are risks involved. First and foremost, there are those associated with anesthesia, which is why an assessment of your pet's condition is systematically carried out before he or she is put to sleep. In some cases, tests are recommended to clarify your pet's state of health and personalize the anesthesia protocol.

As with any surgery, there is a risk of infection. It's important to mention any dermatological problems your pet may have at the time of your appointment, as chronic skin infections can significantly increase the risk of infection complications. It is also essential to respect post-operative care: check-up dates, administration of medication.

Finally, there are also risks of complications during the healing process. These are often the result of not resting the operated limb, or of overstraining it.

What is the procedure like at the Agoravet veterinary clinic?

Your pet is admitted the day before or the day of the operation, and is usually returned to you on the day of the operation. It is therefore advisable to prepare his or her return in good time, so as to be able to comply with the post-operative rest instructions.

Will my pet be able to walk normally after surgery?

The usual post-operative rest period is 6 to 8 weeks. Depending on the severity of the initial dislocation, the prognosis is more or less favourable. Other factors, such as the age of the dislocation or the presence of other lesions (cruciate ligament rupture, cartilage lesions, etc.) also influence the final prognosis. In the vast majority of cases, functional recovery is very good. In the event of failure, a revision of the surgical procedure may be necessary.

What are the instructions for resting after the operation?

It is important to keep your pet at rest after orthopedic surgery. Jumping, running, playing and stair climbing are forbidden, as is wandering around unsupervised. Dogs may go out, but only on a short leash and for as long as it takes them to relieve themselves. Cats and rabbits remain confined to their homes. The most agitated animals (small dogs, cats, rabbits) can be kept in a playpen to limit their movements. Animals can be returned to activity after consultation with the surgeon.

Should surgical implants be removed after surgery?

It is preferable to remove pins, screws and plates after bone consolidation. Depending on your pet's age, implant location and state of health, it may in some cases be decided to leave them in place. Removal of implants, when indicated, is usually carried out within 4 to 6 months of surgery.