Haas318 reports a case of spastic scoliosis with obliquity of the pelvis treated by surgical transference of muscle. The patient had considerable pelvic obliquity and a left lumbar scoliosis. The author points out that it is important to obtain a balancing of the muscle pull on both sides of the pelvis and the thoracic cage. He points out that scoliosis with pelvic obliquity due to spastic paralysis is an infrequent entity: "The correction of this deformity is difficult because of the complicated causative mechanical factors, the disorganization of normal muscle control, incoordination, and disturbance in equilibration. It is important that, in attempting a correction of this deformity, one does not further disrupt locomotion by increasing the imbalance or enhance the ability of accommodation for co-existing deformities."
The author considers the possible methods of correction in this type of case. He feels that spinal fusion would have to include the
COBB JR. PROGRESS IN ORTHOPEDIC SURGERY FOR 1942A REVIEW PREPARED BY AN EDITORIAL BOARD OF THE AMERICAN ACADEMY OF ORTHOPAEDIC SURGEONS XI. CONDITIONS INVOLVING THE SPINE AND THORAX EXCLUSIVE OF THOSE IN THE LOWER PART OF THE BACK. Arch Surg. 1943;47(6):586-608. doi:10.1001/archsurg.1943.01220180072006