
16/07/2025
Cranial cruciate ligament rupture is the most common orthopaedic problem in dogs and this causes instability of the stifle (knee) joint. Affected dogs will have hind limb lameness and stiffness. Sometimes the signs will appear suddenly, but in other cases they develop more gradually. The ligament ruptures due to a degenerative change in most cases and although traumatic rupture can occur, this is uncommon. Both partial and full ruptures can be seen.
In the majority of cases surgical management is recommended and would be expected to give the best outcome. Tibial plateau levelling osteotomy (TPLO) is the surgery we carry out most frequently and evidence shows this technique gives the best results. The surgery involves cutting and repositioning the top of the tibia (shin bone) to alter the way the forces go through the stifle (knee) joint resulting in joint stability. A period of rest and exercise restriction is required after the surgery to allow the bone to heal in its new postion. Lead walks can be started at two weeks post surgery. Radiographs are taken at six weeks to ensure the bone is healing as expected.
The outcome is expected to be good following TPLO surgery with over 90% of dogs returning to normal activity without requiring ongoing medication.
If you have a patient, or a pet, who has a cranial cruciate ligament rupture please get in touch to see if we can help.