Susan's Back

L4 - S1 ALIF (Anterior Lumbar Interbody Fusion

T10-Pelvis PSF & L4 PSO

Posterior Spinal Fusion

A posterior lumbar fusion is the most common type of fusion surgery for the low back. A fusion is a surgical procedure that joins two or more bones (in this case vertebrae) together into one solid bone. The procedure is called a posterior fusion because the surgeon works on the back, or posterior, of the spine.

Pedicle Subtraction Osteotomy

A pedicle subtraction osteotomy (PSO) is a surgical procedure used in adults and children to correct certain deformities of the spine. A spine with too much kyphosis (forward curvature, or “hunchback”) or too little lordosis (inward curvature, or “swayback”) can be corrected with a PSO.

During a pedicle subtraction osteotomy, the shaded areas of bone are removed. The spine is then realigned and stabilized in its new alignment.

For general information about spinal deformity and its correction, please see the deformity correction overview page:

Spine pictures

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