Absolute	Relative	No contraindication
Acute inflammatory arthropathies	Spondylolisthesis with ongoing slippage	Subacute inflammatory arthropathies
Acute fracture or dislocation	Articular hypermobility	Osteoarthritis
Ligament rupture	Post-surgical joints with clinical signs of acute inflammation or instability	Spondylolisthesis with no change in slippage
and instability	Demineralisation	Post-surgical joints with no signs of instability
Unstable odontoid peg	Benign bone tumours	Acute injuries of soft and bony tissues
Infection	Anticoagulants	Scoliosis
Vertebrobasilar arterial insufficiency
Aneurysm
Acute myelopathy
Acute cauda equina syndrome