Juvenile Pubic Symphysiodesis (JPS) Procedure

Understanding Juvenile Pubic Symphysiodesis (JPS)

Juvenile Pubic Symphysiodesis (JPS) is a surgical procedure aimed at preventing hip dysplasia in young dogs. This procedure is particularly beneficial for breeds predisposed to hip dysplasia and involves manipulating the growth of the pelvic bones to improve hip joint stability.

Anatomy of the Canine Pelvis

The canine pelvis is a bony structure consisting of three main bones: the ilium, ischium, and pubis. These bones form the pelvic girdle, which supports the hind limbs and houses the hip joints. The hip joint is a ball-and-socket joint where the femoral head (ball) fits into the acetabulum (socket) of the pelvis. Proper alignment and development of these structures are crucial for joint stability and function.

Which Dogs Would Benefit from the Procedure?

JPS is most beneficial for young puppies, typically between 12 and 20 weeks old, who are at risk of developing hip dysplasia. Breeds that are commonly predisposed to this condition include:

• German Shepherds
• Labrador Retrievers
• Golden Retrievers
• Rottweilers
• Large and giant breed dogs

Early screening and diagnosis are essential. If hip laxity or early signs of hip dysplasia are detected, JPS can be considered to reduce the risks of developing degenerative joint disease later in life.

PennHIP X-Rays as a Screening Procedure

PennHIP (Pennsylvania Hip Improvement Program) X-rays are a critical tool in screening for hip dysplasia and determining if a JPS procedure would benefit a dog. PennHIP X-rays provide an accurate assessment of hip joint laxity, which is a primary factor in the development of hip dysplasia. Here’s how it works:

1. Early Detection: PennHIP can identify hip laxity in puppies as young as 16 weeks old, allowing for early intervention.
2. Accurate Assessment: PennHIP Xrays are assessed by specialists who provide a quantitative measurement of hip laxity, offering a reliable prediction of a dog's likelihood of developing hip dysplasia.
3. Decision-Making Tool: The results from PennHIP X-rays can help veterinarians decide if a puppy is a good candidate for JPS. If moderate hip laxity is detected, JPS can be performed to improve joint stability and prevent hip dysplasia. Please note - many dogs who have PennHIP xrays do not then require a JPS procedure. If the dog has low or mild laxity, these animals would not be at risk of DJD and therefore not benefit from the procedure.

How the JPS Procedure Works

JPS involves surgically fusing the growth plate (symphysis) at the pubic bone. Here’s how it works:

1. Surgical Fusion: The growth plate at the pubic symphysis is fused using electrosurgery. This stops the growth in this region while allowing the rest of the pelvic bones to continue growing normally.
2. Pelvic Rotation: As the rest of the pelvis continues to grow, the acetabulum (hip socket) rotates over the femoral head. This improved coverage reduces hip laxity and enhances joint stability.
3. Minimally Invasive: The procedure is minimally invasive, typically involving a small incision and causing minimal trauma to surrounding tissues.

Recovery from the Procedure

Recovery from JPS is generally straightforward, with most puppies returning to normal activity levels relatively quickly. Here’s what to expect:

1. Postoperative Care: Your veterinarian will provide detailed postoperative care instructions, which may include pain management, wound care, and activity restrictions.
2. Activity Restrictions: Initially, activity may be restricted to allow for proper healing. Gradual reintroduction to normal activities will be advised.
3. Follow-Up Visits: Follow-up visits will be necessary to monitor the puppy’s progress and ensure proper healing and pelvic development.
4. Long-Term Benefits: The primary benefit of JPS is the significant reduction in the risk of developing hip dysplasia and associated arthritis later in life. Early intervention can lead to a healthier, more active life for your dog.

Juvenile Pubic Symphysiodesis is a valuable preventive procedure for young dogs at risk of hip dysplasia. By addressing hip joint instability early, JPS can help ensure your dog enjoys a lifetime of healthy, pain-free movement. PennHIP X-rays are an essential screening tool to determine if JPS would benefit your puppy. If you have a breed susceptible to hip dysplasia or have concerns about your puppy’s hip health, consult with our experienced veterinarians at McLaren Vale Veterinary Surgery. We are committed to providing the best care for your pets and helping them lead happy, active lives.

For more information or to schedule a consultation, please contact McLaren Vale Veterinary Surgery today on 8323 8522.