Atlantoaxial subluxation as a complication of early ankylosing spondylitis
Atlantoaxial subluxation is uncommon in ankylosing spondylitis, especially early in the course of the disease. Two patients are described in whom atlantoaxial subluxation occurred early in the course of otherwise typical ankylosing spondylitis. The presumed mechanism is localized synovitis producing laxity or rupture of the transverse ligament. Cervical roentgenograms in maximal flexion and extension are necessary to evaluate both the degree of subluxation and the risk of cord compression.
Background ::: The optimal post-operative care regimen after surgically fixed Lauge Hansen supination exorotation injuries remains to be established. This study compares whether unprotected weight bearing as tolerated is superior to protected weight bearing and unprotected non-weight bearing in terms of functional outcome and safety.