This is often a condition these small dogs inherit from their parents. Due to a failure of the blood supply to the neck of the femur (the 'ball' part of the hip) the neck decays and a fracture occurs. Severe lameness then results. Occasionally, lameness in the hind limbs has nothing to do with the legs at all.
Endocrinologists are doctors who specialize in the diagnosis and treatment of diseases of one or more glands. These doctors are well-trained experts who have studied the physiology and pathology of glands, and who provide care to patients with endocrine and metabolic diseases.
The adrenal glands (also known as suprarenal glands) are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol. They are found above the kidneys and consist of a series of layers with different structure and functions.