Senior Dog Won't Bend a Back Leg When Lying Down

Holding a back leg straight and dragging it at a walk can come from a stiff, arthritic knee or hip, an old cruciate tear, a tendon injury, or nerve or spine problems. Dragging the toes is particularly worth checking, since it can mean the dog isn't aware of where the foot is, which points to a nerve problem rather than a joint.

Ask your vet to examine the knee and hip and check his reflexes. X-rays will usually show arthritis or a fracture. Look at the top of his toenails; worn nails suggest he's been scuffing that foot.

See dog knee problems and arthritis in dogs.

This is general information, not a diagnosis. Please follow your own vet's advice.