PMC3037290_01
Dropped head deformity before surgery. Radiographs showing degenerative kyphoscoliosis with ossification of the anterior longitudinal ligament. Impairment in total spinal alignment due to cervical kyphosis.
1746-1596-6-9-1.jpg
PMC3037290_01_1746-1596-6-9-1.jpg
F1
A plain radiograph revealed cervical degenerative kyphoscoliosis with ossification of the anterior longitudinal ligament (Figure 1). Plain lateral radiography in standing position 4 months after surgery revealed improvement of sagittal balance and pelvic tilt compared to preoperative results (preoperative C7 plumb line -85.1 mm   postoperative C7 plumbline -11.7 mm, preoperative pelvic tilt 22    postoperative pelvic tilt 14 ), with significant improvement in overall spinal alignment (Figures 1, 2).
Improvement of dropped head deformity and total spinal alignment.
1746-1596-6-9-2.jpg
PMC3037290_01_1746-1596-6-9-2.jpg
F2
Plain lateral radiography in standing position 4 months after surgery revealed improvement of sagittal balance and pelvic tilt compared to preoperative results (preoperative C7 plumb line -85.1 mm   postoperative C7 plumbline -11.7 mm, preoperative pelvic tilt 22    postoperative pelvic tilt 14 ), with significant improvement in overall spinal alignment (Figures 1, 2).
Histological examination. (A) H.E. staining of trapezius muscle, showing myogenic atrophy. (B) H.E. staining of sternohyoid muscle, showing normal pattern.
1746-1596-6-9-3.jpg
PMC3037290_01_1746-1596-6-9-3.jpg
F3
Neural fibers were observed around the striated muscle fibers without degeneration (Figure 3A). On the other hand, no significant pathological findings were observed in the sternohyoid muscle samples (Figure 3B).