Pannus study (retrospective)
•22 Patients with RA of upper CS
–18 females, 4 males
–Av. age at surgery: 58 yrs
–History of RA: av. 16.8 yrs until fusion
•Preoperative MRI
•Follow-up: av. 40 (24-55) months
•Surgical indication
•Intractable pain
20
•Progression of instability 8
•Compressive myelopathy 9
