A 65-year-old man had H/o of back pain since 3 months. ESR is raised. He also has dorso-lumbar tenderness on examination and mild restriction of chest movements. On X-ray, syndesmophytes are present in veebrae. Diagnosis is:
Ankylosing spondylitis
Degenerative osteoahritis of spine
Ankylosing hyperostosis
Lumbar canal stenosis
Ankylosing hyperostosis Ankylosing spondylitis Age Elderly Young Sacroilitis Absent Always present Chest expansion Mild restriction Marked but not reliable in elderly Tenderness Dorso-lumbar Sacroiliac ESR Normal to mild rise High Syndesmophytes Present Present
Metabolic Disorders of Bone