In conjunction with the following sections, this blog aims to provide pet owners with a comprehensive understanding of ACL surgery in dogs. From the underlying anatomy and causes of a torn ACL to the various surgical techniques employed, we delve into the intricacies of this common orthopedic procedure. We explore the treatment options available, including when surgery is necessary and alternatives to consider. Additionally, post-operative care, the importance of physical therapy, and the potential long-term impact on the affected leg are discussed. Whether you’re facing the decision of whether to proceed with surgery for your dog’s torn ACL or seeking to broaden your knowledge on this topic, this article equips you with the information needed to make informed decisions and support your furry companion throughout their journey to recovery.
What is Dog ACL Surgery and Why is it Needed?

Common Causes of a Torn ACL in Dogs
In my capacity as a veterinary professional with a specialization in orthopedic disorders, I have reviewed the first three Google searches and presented to you the simplest of explanations of the most common causes of a torn ACL in dogs. In the course of my study, the major causes noticed across these dependable sites were the following:
- Trauma and Injury: The most frequent cause of ACL tears in dogs is trauma resulting from sudden physical contact, stretching of the knee joint during intense activities like running, jumping, or playing, or even an awkward movement performed during such activities. These events could exert excessive force on the knee joint and consequently cause injury to the ligament.
- Degenerative Changes: With the passage of time and advanced age, there is constant wear and tear on the ACL which with time causes progressive ruin of the ligament. This condition may be affected by hereditary factors, old age, and underlying joint-related diseases like osteoarthritis.
- Breed Predisposition: Some dog breeds including Labrador Retrievers, Golden Retrievers, Rottweilers, and Newfoundlands are genetically impoverished in terms of anatomy and have an increased chance of having an ACL tear. These anatomical predisposing factors may include a shallower knee joint angle as well as other variations that may increase the looseness of the ligament and consequently predispose the dog to ligament injuries.
It is also necessary to mention that although these causes are broadly observed, there might be some variations in individual cases. It is advisable to seek veterinary care for a diagnosis and a specific treatment plan that best suits your dog’s condition and medical history.
Symptoms of a Torn ACL Your Dog May Exhibit
Symptoms often accompany a torn ACL in a dog. This information is however an approximation as everyone is different so a vet’s examination is still required with a definitive diagnosis and a recommended course of action. However, according to credible sources such cases also include the aforementioned:
- Lameness which could also be associated with a limb: This can be evident in dogs that have sustained a leg injury as a result of the impact on the affected leg. Depending on how serious the damage is, the lameness could be weak or moderate.
- Weight-bearing difficulty or seeming to be ‘careful’ when bearing weight on the injured limb: While standing, walking, or even running, dogs might find it tough or be hesitant to bear weight on the injured limb.
- Swollen knee and persistent tenderness in that region: There may also be some swelling about the knee joint and some tenderness in that area.
- Reduced activity: An injured puppy might be forced to become a ‘couch potato’ avoiding any form of increased activity levels or even not exploring semi-physical activities.
It is noteworthy to keep track of these symptoms and consult with a veterinary specialist for the right diagnosis and treatment options based on the condition and the medical history of your dog.
How Does ACL Surgery for Dogs Work?

Types of Surgical Techniques Used
Dogs injured in the cruciate ligament will have their ACL surgery performed using one of the following types of approaches based on the severity of the injury and the requirements of the specific dog:
- Extracapsular Repair: This is an older technique that is best used for smaller dogs or if the damage is not very severe. This approach involves placing the strong sutures outside the joint — in our case, the knee joint. These sutures serve to immobilize the knee to allow the torn ligament to heal naturally. The amount of sutures and the size vary according to the size and weight of the dog.
- Tibial Plateau Leveling Osteotomy (TPLO): TPLO is a fine operating technique, and is most often used for larger dogs or in the case of more severe ruptures, or tears. The procedure involves cutting the tibia bone midway and rotating it to change the slope of the tibial plateau, stabilizing the knee joint. This replaces the need for surgery for the torn ligament and helps the dog to stand better. The veterinarian will specify the angles and amount of osteotomy to be needed based on the size of the dog and the degree of rot or damage sustained by the dog.
- Tibial Tuberosity Advancement (TTA): This is a procedure most commonly used in dogs with cranial cruciate ligament rupture that travels to stabilize the knee joint by modifying its biomechanics. The procedures involve a single cut bone in the tibial tuberosity and ossicular advancements which pharmacologically alters forces in the knee joint, subsequently intervening with challenges arising from the injured ligament. The amount of advancement as well as the cut angle will differ for different dogs and injury dimensions.
Nonetheless, just as with any surgical intervention, several different parameters will influence the selected surgical technique. These parameters include different parameters like the weight and height of the injured dog, the borderline of the injury, and the surgical skill level of the veterinarian. It is advisable to speak to a veterinary consultant to establish the optimal surgical technique to deal with specific medical and background issues.
The Role of Veterinary Surgeons
Veterinary surgeons have the main mission of successfully repairing the torn canine anterior cruciate ligament (ACL). In our practice, we take into account these factors when choosing the appropriate surgical technique for each specific dog:
- Weight and Height of the Injured Dog: The overall size of the animal can determine the surgical method to be used since it can directly interfere with the strength and stability of the replaced ACL.
- Borderline of the Injury: The extent of the ACL tear can be used to assist the surgeon in deciding the ideal way of dealing with the corresponding damage that has been sustained.
- Surgical Skill Level of the Veterinarian: The education and the number of performed operations on a veterinarian are essential when driving understandable aeronautical surgical issues. An experienced surgeon can perform the surgery and containerize the anticipated problems.
For the careful reconstruction of a torn ACL on a given dog, pet owners may take their dog to a veterinary specialist to receive the best care possible. Based on information provided by the owner and any medical examination, he will decide the best surgical procedure that is most suitable for the patient. We as a clinic highly advocate and advise the best sought care to our patients with a focus on recovery and restoration of function in the animal.
What Are the Treatment Options for a Torn ACL in Dogs?

When Surgery is Necessary
Surgery is the recommendation of the vet to most dog owners when their dog has a torn ACL. The recommendation is made after considering factors such as the extent of damage incurred by the ligament, the body weight and age of the pet, and the general state of the animal. In the case of dogs with a torn cranial cruciate ligament, it is important to bear in mind some basic “when is surgery indicated” criteria.
- Complete Tear: There is almost always an indication for surgery in dogs with a complete tear of the ACL. This is because a complete tear will not heal by itself and surgery will need to be performed to ensure proper stability and function of the knee joint.
- Large and Active Dogs: Most large and active dogs require surgery because the knee joint bears too much stress. Surgery protects the joint’s integrity from further injury therefore yielding a better outcome over time.
- Chronic Instability: Even in the absence of complete tears, the knees of dogs with chronic instability of the knee joint may be helped with surgery. This condition can lead to progressive joint degeneration causing ill effects to major ligaments and even resulting in meniscal tears.
A veterinary specialist should be consulted to determine the initial treatment plan for an ACL tear in dogs.
Alternatives to ACL Surgery
Dogs with ACL tears are usually recommended for surgery due to the likelihood of improvement after a procedure. However, other treatment measures may be adopted bearing in mind the extent and nature of the injury, the general health of the dog, and the lifestyle. Such a decision about the treatment options can be made only after consultation with a qualified veterinary specialist. Here are some alternatives to ACL surgery that may be considered:
- Conservative Management: In the case of partial tears without discomfort in the dog and extreme lameness, a conservative approach may be reasonable. In such cases, focused management of pain and inflammation with activity restriction or complete rest, physiotherapy, and anti-inflammatory medications are adopted. Such a dog will require regular follow-up for observation and re-evaluation of the condition.
- Bracing and Supportive Devices: Other collars and external support to the affected knee joint will help in providing stability to the joint. Normal activity will be reduced as over-excessive movements will be restricted and may assist in recovery. The decision regarding the need for braces should be taken in consultation with a veterinary specialist.
- Alternative Therapies: As part of conservative management, the same may be combined with acupuncture, laser therapy, and hydrotherapy for pain relief and inflammation reduction and to assist the healing process. Such therapies can be adjusted to the specific dog patient and may be helpful in further recovering the dog.
However, it should be emphasized that the effectiveness of non-surgical methods may differ according to the case including postgraduate factors. In every given situation, the evaluation of the case will be done by a veterinary college to determine the best management for all individual cases.
How Braces Can Help Your Dog
Brace orthoses can be an important consideration in the rehabilitation of your dog after undergoing surgery to correct a torn ACL. These orthoses are designed to provide support and stability to the leg in question as well as minimize the pain, inflammation, and likelihood of re-injury to the area. This is why we recommend using the braces for the following reasons for your pet:
- Stabilization: These braces limit active mobility of the knee joint which otherwise would subject the already torn ligament to more mechanical stress which is not conducive for recovery. This encourages healing and prevents unnecessary strain on the other tissues around the area.
- Protection: External forces that can aggravate the condition are restrained by the leg with the use of braces. This is extremely advantageous during the rehabilitation period when the dog is beginning to move actively yet aims to avoid further injury to the leg.
- Weight Relief: Braces help in repositioning the leg so that the weight and pressure that are situated on the traumatized ACL are not so adversely affected. This means that your dog can move without discomfort as well as perform a variety of range-controlled physical therapy movements.
In as much as the use of braces may be useful in a conservative management plan when a dog develops a torn ACL, a consultation with a veterinary specialist is recommended to decide the best way to go with an individual case. Any of these may affect the efficacy of the braces:- the degree of the injury sustained, or the individual needs of the dog in question. An adequate assessment by a veterinary expert will assist in providing an appropriate management plan for the injury sustained by the dog that will promote recovery and overall health of the animal.
How to Recover from a Torn ACL in Dogs?

Post-Operative Care Tips
While performing activities such as leash walking, it is advisable to consider specialized equipment. This is quite A prior injury of the cranial cruciate ligament often leads to the dog experiencing additional stress concerning its knees. Keeping the dog leashed usually prevents further hyper-extension of the cruciate ligament However, it also helps manage any pain or stress Applicants need to consider surgery for dogs that are burnt out. Aftercare for your dog is very important once it has ACL surgery and following a few recommendations will go a long way to ensuring your dog’s sports knee pain is resolved providing adequate rest for the required time is essential to ensure that the knee has completely healed over time.
- Restricted Activity: A facility where your dog can rest should be confined and good movement should be kept to a minimum. Do not allow any activities that can potentially involve the usage of the injured leg and such may include running or jumping on objects or climbing stairs.
- Medication Management: The usage of pain and anti-inflammatory medicines that have been prescribed by the vet should be regulated. Pets with a painful condition or who are recovering should adhere to dose schedules which are prescribed within specific time ranges with intervals in between.
- Incision Care: While the pet is recovering, caregivers are advised to closely monitor where the surgical procedure was carried out as there are chances pathogens may be present. As a precautionary measure, always clean the mentioned area and if there is evidence of infection always check with a veterinarian.
- Physical Rehabilitation: Follow the instructions of the veterinarian as appropriately as possible to manage recovery or pain. Pets are usually required to do exercises that help in regaining normal functioning or struggling to carry augment devices during sessions that may involve movement.
- Follow-up Veterinary Visits: Caregivers must attend all scheduled visits with the primary healthcare provider, and make calls when there are major concerns or anything that is troubling the pet occurs. Pets are usually examined by the veterinary team to ensure the body is adequately healing and if there is a need for any adjustment, there will be swift changes that are made.
Please bear in mind that these recommendations regarding postoperative care are not absolute. Your veterinarian must be consulted for detailed instructions that are specific to your dog’s needs and clinical picture.
Monitoring Your Dog’s Activity Level
After surgery for a torn ACL, it’s important to closely monitor your dog’s activity level as there are concerns of activity that may create excessive strain on the healing structures. Too much movement too soon can be damaging though rest and inactivity should be balanced with active movement that encourages surgical recovery. Key factors to consider will include the following when determining your pet’s activity level:
- Exercise Restriction: Restrict all active physical exercise to prevent the dog from further injuring itself. Please refrain from jumping, rough play, or running.
- Leash Walking: Controlled leash walking is recommended when engaging in walks with your dog to prevent further stress on the joints. Walks should be restricted to short durations and should not involve rough ground which will put additional friction on the worn-out leg.
- Physical rehabilitation: In close cooperation with a veterinary doctor or a professional canine physical therapist, your dog should be put on an appropriate exercise program. Muscle strengthening, range of motion, and coordination improvement for instance can be included within the exercise program.
- Stepwise Increase in Activities: Increase your dog’s activity slowly in line with professional advice as healing progresses. Low-strain exercises can be prescribed with the aim of increasing volume and intensity progressively.
The use of a dog harness may accelerate the healing process as it is very comfortable for the dog, however, specific engagement should be avoided until directed to do so. There are several types of harnesses available that can be suggested by a trained professional to suit the functional requirements and the condition of the dog as well as its owner. So, as mentioned previously, consult your veterinarian for proper further guidelines specific to your situation.
Can a Torn ACL in Dogs Heal Without Surgery?

Risks of Not Opting for Surgery
When dog owners decide against performing surgical procedures for a ruptured ACL, there are implications and risks that the dog owners must understand. Although a few dogs may suffer a few partial ruptures and can be managed conservatively, there are significant considerations to be taken into account.
- Spontaneous Healing is Unlikely: The leashes of tears found in the CCL ligaments in dogs are less likely to heal spontaneously unlike in the environment of human biology. In the absence of surgery, a complete tear of the dog’s ACL is not expected to heal which might reserve further forces on the affected joint resulting in mechanical instability.
- Progressive Joint Degeneration: As long as the knee joint is not stabilized through surgical procedures, the affected leg may further become unstable and have abnormal loads and mobility. This could lead to degenerative changes in the joint progressively, more pain, and possible changes in osteoarthritis features.
- Repetitive or Worsening Injury: ACL ruptures that are not treated in dogs could be predisposed to further injuries as the abnormal knee joint would allow instability that could result in excessive tearing of the ligaments or damage of the meniscus inside the affected joint.
The choice between surgical and conservative treatment options for a dog’s disease is extremely important, and one that must involve a veterinarian’s input based on the dog’s present condition, functional needs as well as the circumstances on the ground’.
Long-term Impact on the Affected Leg
The long-term consequences of the knee ACL tear, when left untreated, can be profound on the leg of the patient including:
- Chronic Joint Instability: When the strain applied to the ACL is beyond its structural capacity, it ruptures. When doctors fail to operate the patient, the ruptured ligament will likely not re-attach leading to knee instability. This instability coupled with abnormal movement mechanics can cause the affected dog to experience issues interfacing with gravitation forces such as balance and weight-bearing since joint instability will adversely affect gait, running, or even common exercise activities.
- Degeneration of the Joint with Time: It should be noted that if left unchecked, damaged anterior cruciate ligament tears may degenerate joint surfaces. Structural Lamina is gradually broken down due to ramified motions across the joint surfaces making the affected joint more susceptible to developing chronic osteoarthritis. Eventually, the dog may experience constant chronic pain, immobility, and adversely low living qualities.
- Likelihood of Re-injury of the Joint: Anterior cruciate ligament affected joint is more likely to be injured again if left untreated. A crippled knee joint is prone to further tearing of ligaments or sliding out of meniscal structures. All these secondary joint injuries will complicate the original pain status and functional movement capacity in the affected joint.
We recommend working with a veterinarian to evaluate the actual state of the dog and prepare a suitable treatment plan. Severe damage in the joint usually may require surgery first, to solve the stability of the knee joint and prevent future problems. Available surgical options include extracapsular repair and surgical procedures that involve the bones such as tibial plateau leveling osteotomy (TPLO) or tibial tuberosity advancement (TTA). The selection of surgical intervention is influenced by some parameters, which include the size, age, and activity level of the dog and the severity of the myocardial infarction in the columns.
Frequently Asked Questions (FAQs)
Q: What are the signs that my dog needs ACL surgery?
A: Common signs that your dog may need ACL surgery include limping, difficulty jumping or climbing stairs, swelling in the knee joint, and a noticeable reluctance to exercise. If you suspect a dog ACL injury, it is crucial to consult your veterinarian for a proper diagnosis.
Q: What is the difference between TPLO and TTA surgery for ACL injuries in dogs?
A: TPLO (Tibial Plateau Leveling Osteotomy) and TTA (Tibial Tuberosity Advancement) are both surgical options to stabilize the knee joint following a torn ACL in dogs. TPLO involves changing the angle of the tibial plateau, while TTA involves repositioning the tibial tuberosity. Your veterinarian can recommend the best approach based on your dog’s specific condition.
Q: Are there alternatives to surgery for a dog with a torn ACL?
A: Yes, there are surgery alternatives for managing a torn ACL in dogs, including physical therapy, weight management, and anti-inflammatory medications. However, these options may not stabilize the knee joint as effectively as surgical intervention, and they are typically recommended for less severe cases.
Q: What is the success rate of ACL surgery in dogs?
A: The success rate of ACL repair surgery in dogs is generally high, with studies showing an 80-90% success rate. Many dogs return to their normal activities following surgery, especially with proper rehabilitation and care during recovery.
Q: What should I expect during my dog’s recovery from ACL surgery?
A: Following surgery, your dog will need a period of rest and limited activity to aid recovery. Your veterinarian will provide specific instructions on postoperative care, including pain management and physical therapy. Monitoring for swelling or discomfort around the dog’s knee is essential to ensure a successful recovery.
Q: What is the role of the veterinarian in managing a dog with ACL injuries?
A: Your veterinarian plays a critical role in diagnosing the severity of the dog’s ACL injury, recommending the best treatment options, and performing the necessary surgery. They will also guide you through your dog’s recovery process, ensuring the knee joint stabilizes correctly.
Q: Can a dog recover from a torn ACL without surgery?
A: While some dogs can manage a torn ACL without surgery, especially if the injury is mild, this approach may not always stabilize the knee effectively. Non-surgical methods typically involve a strict rehabilitation program, but it’s essential to consult with your veterinarian to evaluate the best treatment plan for your dog.
Q: What are the risks associated with ACL surgery in dogs?
A: As with any surgery, there are risks involved, including infection, failure of the repair, and complications related to anesthesia. However, with an experienced veterinary orthopedic surgeon, these risks can be minimized, and most dogs experience a successful outcome following surgery.






