Oliver Bee RMTRegistered Massage Therapist

Massage therapy · Kitchener–WaterlooInflammatory Arthritis of the Hip

Hip & Thigh

What It Is

Arthritis means inflammation of a joint, and there are many types. The most common type, osteoarthritis, is a non-inflammatory ("wear and tear") arthritis linked to ageing or previous injury, where the smooth covering on the bone ends wears away (AAOS, n.d.). Inflammatory arthritis is different: it is caused by an overactive immune system, and the lining of the joint becomes inflamed as part of the disease (AAOS, n.d.).

Rheumatoid arthritis is an autoimmune disease that often affects the same joints on both sides of the body, so both hips may be affected. Ankylosing spondylitis causes inflammation of the spine, the sacroiliac joints (where the spine joins the pelvis) and large joints such as the hips, leading to stiffness and pain. Systemic lupus erythematosus is an autoimmune disease where the body's immune system attacks its own healthy tissues (AAOS, n.d.).

Another inflammatory condition that commonly causes hip pain is polymyalgia rheumatica (PMR). "Poly" means many and "myalgia" means muscle pain (Arthritis UK, n.d.). PMR causes pain, stiffness and inflammation in the muscles around the shoulders, neck and hips, usually on both sides of the body, and the main symptom is morning stiffness lasting longer than 45 minutes (NHS, 2023). Most people diagnosed are over 65, it is very rare under 50, and it is more common in women than men (NHS, 2023).

Blood tests such as ESR and CRP can show inflammation in the body, but they do not diagnose inflammatory arthritis on their own. Doctors also use other blood tests (such as antibody tests), X-rays and an examination, and people with suspected inflammatory hip arthritis should be seen by a rheumatologist (a specialist in these conditions) (AAOS, n.d.).

People with inflammatory arthritis of the hip typically notice a dull, aching pain in the groin, outer thigh, knee or buttock, which is often worse in the morning or after sitting or resting and eases with activity (AAOS, n.d.). They may also notice pain when getting out of bed and when trying to put shoes and socks on, and the pain may cause a limp.

Inflammatory Arthritis of the Hip Anatomy

The anatomy of the hip allows it to be both strong and flexible, so it can bear weight and move through a wide range. The hip is a ball-and-socket joint: the ball is the head of the femur (thigh bone), which fits into a rounded socket in the pelvis (AAOS, n.d.). This construction gives you three main types of movement:

  • Hip flexion and extension: moving the leg forwards and backwards
  • Hip abduction and adduction: moving the leg out to the side and back in
  • Rotation: turning the leg so the toes point outwards or inwards

Not a diagnosis — for more information, contact me or another trusted healthcare provider.

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