Cruciate ligament injuries are one of the most common orthopaedic conditions seen in dogs, not just affecting large or highly active breeds. If your dog has been diagnosed with a cranial cruciate ligament (CrCL) tear, surgery is often recommended but what happens before and after that procedure can make a huge difference to your dog’s recovery.
Let’s break down the journey, starting with whether prehabilitation (prehab) is the right choice, why post-surgical rehabilitation (rehab) is so important, and how conservative management compares.
What is a Cruciate Ligament Injury?
The cranial cruciate ligament (CrCL) in dogs is similar to the ACL in humans. It stabilises the knee (stifle joint) and prevents excessive forward movement and rotation of the tibia.
When this ligament is torn or ruptured, dogs may show:
- Lameness or limping in the affected limb leg
- Difficulty rising or jumping
- Sitting unevenly (often with the affected leg out to the side)
- Muscle loss in the affected limb (often noticeable within a couple of weeks and can persist long-term)
CrCL rupture can occur as an acute, trauma-induced injury, but more commonly develops gradually due to ligament degeneration. Dogs may present with sudden lameness or a more subtle, progressive limp as partial tearing worsens over time. Regardless of how it occurs, osteoarthritis will begin to develop and can significantly impact long-term limb function.
To give your dog the best chance of recovery, surgery is often recommended, ideally sooner rather than later.
There are two main categories of surgical repair:
- Extracapsular repair: A strong nylon suture is placed outside the joint to mimic ligament function and stabilise the stifle. Over time, scar tissue forms to support the joint. This is more commonly recommended for smaller dogs or when finances are a limiting factor.
Tibial osteotomy (bone-cutting procedures): These are generally preferred for larger or more active dogs. The most common technique, TPLO (Tibial Plateau Levelling Osteotomy), changes the biomechanics of the knee to eliminate instability rather than replacing the ligament.
There are many factors to consider, so discussing options with your veterinarian is essential.
But surgery is only part of the solution.
What About Prehabilitation?
In humans, prehab is often used to strengthen muscles around the joint before surgery—but in dogs, the situation is quite different.
Due to their natural posture, dogs stand with a much more flexed knee angle (around 145° compared to approximately 175° in humans). Once the CrCL is ruptured, every time the dog weight-bears, the tibia shifts forward abnormally.
This leads to:
- Increased joint instability
- Rapid development of osteoarthritis
- Ongoing damage within the joint
Allowing too much movement during this stage can also increase the risk of:
- Full ligament rupture
- Meniscal injury (which significantly worsens long-term outcomes)
For this reason, traditional “strength-building” prehab is generally not recommended.
Instead of attempting prehabilitation, your best bet is to restrict activity (short lead walks only from now on), don’t allow your dog to run, jump or play roughly and last but not least, get them booked in for surgery asap!
Surgery Is Done - Now the Real Recovery Begins
After surgery, many owners are advised to crate rest their dog for several weeks. While rest is important, especially in the first 4–5 weeks, rehabilitation should begin early and progress in a structured way.
Key Focus Areas of Rehabilitation:
- Pain Management: Pain inhibits movement and muscle activation. Appropriate pain relief, along with techniques like cryotherapy (icing) is essential in the early phase.
- Restoring Range of Motion: Loss of stifle extension is common after surgery and can lead to a shortened stride. Gentle, controlled exercises help prevent stiffness and restore normal movement.
- Muscle Rebuilding: Muscle atrophy occurs quickly after injury. The most affected muscles include:
- Quadriceps
- Hamstrings (biceps femoris, semimembranosus)
Without rehab, these muscles can reduce to around 60% of their normal size. Targeted exercises are essential to rebuild strength progressively.
- Proprioception and Balance: Injury disrupts your dog’s body awareness. Rehabilitation retrains coordination, stability, and correct limb placement.
- Gradual Return to Function: Recovery is not one-size-fits-all. Progression depends on factors like age, weight, fitness level, surgical technique, and overall health. A tailored program is key—especially for active or sporting dogs.
What Happens Without Proper Rehabilitation?
Skipping rehabilitation – or doing too much or too little – can have serious long-term consequences:
- Persistent Lameness: Reluctance to use the limb may result in permanent soft tissue changes and altered range of motion angles, leading to a continuous limp due to weakness and poor movement patterns
- Muscle Atrophy: Without proper weight bearing, muscles in the limb can not improve, leading to ongoing muscle loss and subsequent weakness, which also increases the risk of further injury.
- Reduced Range of Motion: Scar tissue and stiffness can limit normal range of joint movement, and often stifle extension is affected. This can lead to a decreased stride length and therefore lameness and muscle atrophy.
- Compensatory Injuries: As dogs have another three limbs on the ground, they are quite clever when it comes to compensation. The issue is that weight is often moved to the other hind limb, making it more likely to sustain a cruciate injury in this limb. Or they may shift weight into their forelimbs, causing overuse injuries in their shoulders or spine.
- Poor Surgical Outcome: There is no way of sugarcoating this, but surgery is not cheap. In saying this, when you already have decided on surgery, would you not want the best possible outcome? Surgery alone is not the answer, otherwise I don’t think anyone would bother about rehabilitation for humans after surgery. Surgery with a targeted rehabilitation program has proven to gain the best outcome.
The Bigger Picture: It’s a Team Effort
Successful cruciate recovery isn’t just about the surgery—it’s about the combined effort of:
- Your veterinarian
- Your rehabilitation practitioner
- And you, the owner
Consistency, patience, and guidance are key.
Where Does Conservative Management Fit In?
Whilst surgery and subsequent rehabilitation is seen as the gold standard, this may not be the best option for every dog.
Here are some reasons why the owner may choose a conservative approach:
- Small breeds: Small dogs may recover well with conservative management due to less weight on their joints.
- Lifestyle: “Lazy” and less athletic dogs who do not feel the need to run or jump can function well with conservative management, as they may develop scar tissue that stabilises the stifle over time.
Old dogs: Similar to the less active dogs, the stifle joint may stabilise over time. Owners may also be reluctant to have their dog undergo a long anaesthetic.- Underlying Health Conditions: Underlying health conditions like heart disease or severe kidney disease will increase anaesthetic risk and may be a reason to consider conservative management. Another one may be endocrine conditions like Cushing’s Disease and Hypothyroidism, as these conditions can greatly impact the healing process.
- Financial Considerations: Surgery can be very expensive, often costing thousands of dollars. Conservative management can be much cheaper, as it focuses on medication, physiotherapy, and lifestyle changes rather than a surgery which requires a specialist.
However, if you have decided on going the conservative approach, keep in mind that this is not a “do nothing” option. It requires a dedicated, long-term commitment (usually 3-6 months), including weight management, activity restriction, working with a rehabilitation specialist on a structured return to function, adequate pain relief and environmental adjustments. Your home may be less than pretty for a while with non-slip mats all over the place.
It is important to acknowledge that conservative management does not mend the torn ligament, it merely relies on scar tissue and muscles to stabilise the joint over time.
Progressive arthritis is still very likely to develop (with or without surgery), but it will progress faster with the conservative approach.
Furthermore, there is a high chance that the cruciate ligament of the opposite leg will tear over time, due to overuse of the sound limb.
Final Thoughts
Whether you are choosing the surgery route or conservative management, cruciate repair is not a quick fix, it is a journey!
Seeking professional guidance can make a significant difference in your dog’s outcome, so it is always worthwhile to book an appointment with your trusted vet or to seek advice from a certified rehabilitation specialist.
The ultimate goal after all is for a strong and functional recovery, supporting a happy and active life after injury.
At High Five Paws, we’re here to guide you and your dog through every step of the journey—restoring balance, renewing vitality.
Dog Rehabilitation in Spearwood, Perth
High Five Paws is a small, hands-on canine rehabilitation service based in Spearwood, Western Australia, providing exercise-based rehabilitation for dogs recovering from:
- Orthopaedic surgery
- Neurological conditions such as IVDD
- Injury or mobility issues
- Age-related weakness
If your dog may benefit from dog rehabilitation or therapeutic exercise, feel free to get in touch.
Together, we can help restore balance and renew vitality. 🐾