Feature Question

(OBQ09-162) Vaughn-Jackson syndrome in rheumatoid arthritis is best described as? REVIEW TOPIC

1. Cranial migration of the dens from soft tissue erosion and bone loss between occiput and C1&C2
2. Rupture of flexor pollicis longus in the carpal tunnel
3. Synovitis in the DRUJ leading to supination of the carpal bones away from the head of the ulna
4. Rupture of the hand digital extensor tendons
5. Synovitis of the MTP joints with eventual hyperextension deformity of the MTP