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What is Last joint to be involved in ankylosing spondylitis and explain in detail?
Ankylosing spondylitisTypically a young man who presents with lower back pain and stiffness.HLA 27 association Clinical features Stiffness is usually worse in the morning and improves with activityEnthesopathy is characteristicApical fibrosisAnterior uveitisAoic regurgitation ~ Achilles tendinitisAV node blockAmyloidosisCauda equina syndromeX-rays features - Sacroiliitis, Subchondral erosions, Sclerosis, Squaring of lumbar veebrae, Bamboo spine appearance(Refer: Apley's System of Ohopedics and Fracture, 9th edition, pg no: 58-61)