An Sp
c/c seronegative autoimmune spondyloarthropathy affecting spine and SIJ
Orthopaedic manifestation
- Bilateral sacroilitis
- Spinal kyphosis
- c spine fracture
- Large joint arthritis
New york criteria
- Sacroilitis visible on imaging + 2 of the 3 clinical features
- Low back pain and stiffness >3 months that improves with exercise not relieved by rest
- Limitation of movement of spine in sagittal and frontal planes
- Limitation of chest expansion
Non orthopaedic
- Uveitis
- Heart disease
- Pul fibrosis
- Aortitis
- Renal amyloidosis
Treatment
- Anti inf
- Posture education
- Spinal osteotomy
- Fracture management
- 1st spine, then hip and knee
Written/reviewed by Kishore Puthezhath
Professor of Orthopaedics and Consultant Paediatric Orthopaedic Surgeon
FRCS (Tr & Orth) revision resource
Reviewed: September 2026