Cruciate ligament tears are among the most common orthopedic conditions in dogs. Active and medium to large breeds are particularly affected. Conventional treatment usually involves surgery, accompanied by lengthy rehabilitation. However, a supportive method is increasingly gaining attention: PRP (platelet-rich plasma). But how effective is this therapy for cruciate ligament tears, and when is it appropriate?
What happens when a dog tears a cruciate ligament?
The anterior cruciate ligament (ACL) stabilizes the knee joint. If it tears, it causes instability, lameness, and pain. In most cases, a complete tear does not heal on its own—surgery is therefore standard. Nevertheless, PRP can play a crucial role as a complementary treatment.
How can PRP help?
PRP is extracted from the dog's own blood and contains a high concentration of growth factors. These factors promote cell regeneration, have an anti-inflammatory effect, and support the formation of new tissue. In the case of a cruciate ligament tear, PRP can:
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reduce the inflammatory reaction in the knee joint,
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support the healing of surrounding structures such as menisci or ligaments,
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accelerate postoperative regeneration,
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Reduce pain and improve mobility.
PRP as a complement to surgery
PRP generally does not replace surgical intervention for a complete cruciate ligament tear. However, during the rehabilitation phase after surgery—for example, after a TPLO (Tibial Plateau Leveling Osteotomy)—it can accelerate healing and restore the joint's load more quickly. Some veterinarians inject PRP into the affected joint directly during surgery or a few days afterward.
PRP for partial tears or chronic instability
In cases of partial ruptures or chronic ligament insufficiency, PRP can also be used as a conservative treatment—especially in older dogs or animals for whom surgery is not possible or desirable. Here, PRP can help relieve symptoms and preserve joint function.
How does the treatment work?
Blood is drawn from the dog, which is then processed in a special centrifuge. The resulting platelet-rich plasma is then injected sterilely into the affected knee. The treatment is short overall and is generally well tolerated by the dog.
How many treatments are necessary?
This varies from individual to individual. In many cases, one or two injections are sufficient; for chronic problems, several sessions spaced a few weeks apart may be necessary. The effect often lasts for several months.
Conclusion
PRP isn't a miracle cure—but it is a very promising, natural addition to the treatment of cruciate ligament tears in dogs. Especially in the post-operative phase or with conservative approaches, it offers the potential to promote healing, relieve pain, and improve the animal's quality of life. Therefore, more and more veterinarians are turning to PRP as part of a holistic treatment plan.
