Pedicular Subtraction Osteotomy (PSO)
What is it?
Pedicular Subtraction Osteotomy (PSO) is a complex and highly specialized surgical procedure used in the treatment of severe spinal deformities, particularly in the lumbar region. This procedure is commonly indicated for conditions such as kyphosis, flat-back syndrome, and certain cases of scoliosis. PSO is often considered when less invasive treatments have failed to provide adequate relief or correction.
PSO is typically recommended for individuals with severe spinal deformities that significantly impact their mobility, posture, and quality of life. This procedure is usually considered when other treatments have been unsuccessful, including physical therapy, bracing, and less invasive surgical options.
Recovery from PSO involves an extended hospital stay and a significant period of rehabilitation. Physical therapy is a crucial part of the recovery process, focusing on strengthening the back and improving flexibility.
Regular follow-up appointments are essential to monitor the healing process and the fusion’s success.
Procedure
The core of the PSO procedure involves the removal of a wedge-shaped section of bone from a vertebra. This includes the removal of the pedicles (short segments of bone that extend from the sides of a vertebra), the vertebral body, and parts of the facet joints. After the wedge of bone is removed, the spine is realigned, and the gap created by the removed bone is closed. This realignment is designed to correct the abnormal curvature of the spine. The procedure typically involves the use of rods, screws, and cages to stabilize the spine in its new, corrected position and to facilitate the fusion of the vertebrae.
PSO can significantly correct spinal deformities, particularly in cases where less invasive methods are insufficient. Correcting the spinal alignment can improve posture, balance, and relief from pain caused by abnormal curvature. Successful PSO can significantly improve a patient’s quality of life, allowing for greater mobility and reduced discomfort.