Perforator propeller flap for coverage of Achilles region defects caused by pyoderma gangrenosum.

Pyoderma gangrenosum (PG) is a rare neutrophilic inflammatory skin disease. Systemic corticosteroid and immunosuppressive agents are the mainstay treatment. PG usually precludes a surgical approach due to pathergy phenomenon.

The height of the osteotomy and the correction of the kyphotic angle in thoracolumbar kyphosis.

Background: This study investigated the relationship between the height of osteotomy and the correction of the kyphotic angle during posterior closing wedge osteotomy with instrumentation and the spinal osteotomy with cage inserting into the intervertebral gap and closing posteriorly by a single posterior approach in thoracolumbar kyphosis, and using this relationship as the basis of the preoperative design.

Methods: From April 1996 to June 2007, 30 thoracolumbar kyphosis patients with complete medical records and clear X-ray photograms have undergone operation. Of these 30 cases, 16 cases underwent posterior closing wedge osteotomy with instrumentation while the height of the osteotomy and the correction of the angle have been measured; 14 cases underwent spinal osteotomy with cage inserting into the intervertebral gap and closing posteriorly by a single posterior approach while the height of the osteotomy, the height and the place of the cage and the correction of the angle were also measured.