Thuasne lombax dorso lumbar belt is recommended to maintain and improve back posture to relieve pain in the middle and lower back. it is indicated for patients with or without progressive or non-progressive static disorders (lordosis kyphosis). the back support brace is also used in the prevention of axial spinal deformities in the context of progressive disorders. fitting instructions: define the height according to the patient: the lower edge of the orthosis must be positioned at the level of the tailbone and the dorsal plate must be slightly higher than the shoulders. shape and adjust the aluminium structure of the back-straightener. slip on the back-straightener passing the arms through the braces. before fitting make sure the end of the back-straightener is still attached to the braces. it is recommended that the lombax dorso orthosis from thuasne is worn over a t-shirt. belt instructions: position the lower tab using the hand loop then do the same with the upper tab. simultaneously pull on the additional straps and fasten them starting with the right strap then the left strap. back straightener instructions: detach the end of the braces and simultaneously pull on both straps. fasten them where it suits you best.