At a glanceCruciate ligament disease affects knee stability; a hindlimb limp needs assessment rather than a diagnosis based on a single turn or jump.WORKING DOG reference library · Added 2026-10-19 · Expert review pendingThis educational guide has not been reviewed by a veterinary professional. Discuss decisions about your dog’s health or diet with your veterinarian.Key factsStifleThe canine knee joint [source]CCLCranial cruciate ligament [source]Locate the jointThe canine stifle is the knee joint, and the cranial cruciate ligament contributes to its stability. Cornell’s orthopaedic resources identify cruciate injury among conditions treated by veterinary surgeons. Keep the anatomical diagnosis separate from a handler’s description of an incident; seeing a dog turn sharply does not prove exactly which structure was injured.Record the patternDescribe sudden or gradual lameness, changes after rest and any previous difficulty. Include whether the dog is using the limb differently in ordinary activity. A video can support the history when made without provoking pain, but a remote observer should not assign a definitive diagnosis or treatment from appearance alone.Understand the examinationThe veterinary team assesses the joint and the wider limb and decides whether imaging, sedation or referral is appropriate. Ask what the findings establish and which options apply to this patient. Do not select a surgical method solely from another working dog’s success story or assume every dog needs the same procedure.Plan recovery explicitlyIf treatment is undertaken, obtain a written activity and review plan and make it available to all caregivers. Explain the actual work demands before discussing return to stock or sport. Healing, comfortable everyday movement and readiness for demanding work are related but distinct questions. This guide supplies no rehabilitation exercise prescription or fixed recovery timetable; those need the treating team’s individual assessment.Common questionsCan a sharp turn in a video diagnose a cruciate injury?No. A witnessed incident provides context, but identifying the affected structure and treatment options requires assessment.Sources & further readingReferences for this guide. Rules and services can change; check the responsible organisation for current details.Cornell: Orthopedic surgery (opens in a new tab)Keep exploringWhat a lameness assessment investigates ↗Choosing canine rehabilitation support ↗Explore the working dog communityRecorded competition results · Find a trainer · Browse services · Dogs & litters