360 degrees Release and in situ bending correction for sagittal imbalance of the spine.

摘要

Degenerative spine is a normal evolution with time. This ageing is generally well tolerated but in some cases the spine becomes painful. The wear of the intervertebral facets in the back and the disc narrowing in the front can cause sagittal and/or frontal imbalance. Standing and walking are thus difficult. At the beginning, the retrover-sion of the pelvis can improve the situation. Conservative treatment is effective as long as there is some flexibility and mobility in the spine. When this point is passed, and if the patient has good general health, surgery can be considered. Today Transpedicular Subtraction Osteotomy (PSO) is very popular 1, but this surgery is not without certain complications. Smith-Petersen Osteotomies (SPO) can be an alternative 2. These osteotomies are possible if there is some mobility in the disc. A too big opening of the disc requires an anterior bone graft to avoid a dismounting with rod breakage. The correction can be obtained by compression, approximation or in situ bending 3.