1. Gluteus Maximus Avulsion and Closed Degloving Lesion Associated with a Thoracolumbar Burst Fracture by David E. Gwinn, Robert A. Morgan, and Anand R. Kumar J Bone Joint Surg Am Volume 89(2):408-412 February 1, 2007 ©2007 by The Journal of Bone and Joint Surgery, Inc.

2. Lateral radiograph of the spine made with the patient supine, showing the L1 burst fracture with associated kyphosis and canal compromise. David E. Gwinn et al. J Bone Joint Surg Am 2007;89:408- 412 ©2007 by The Journal of Bone and Joint Surgery, Inc.

3. Axial computed tomography scan through the L1 vertebral body, showing the degree of comminution and retropulsion of bone fragments into the canal. David E. Gwinn et al. J Bone Joint Surg Am 2007;89:408- 412 ©2007 by The Journal of Bone and Joint Surgery, Inc.

4. Sagittal T2-weighted magnetic resonance imaging scan of the lumbar spine showing an L1 burst fracture with canal compromise and the bright signal of the closed degloving lesion caudally. David E. Gwinn et al. J Bone Joint Surg Am 2007;89:408- 412 ©2007 by The Journal of Bone and Joint Surgery, Inc.

5. Postoperative lateral radiograph showing posterior instrumentation from T10 to L2. David E. Gwinn et al. J Bone Joint Surg Am 2007;89:408- 412 ©2007 by The Journal of Bone and Joint Surgery, Inc.

6. The left (L) and right (R) bare sacral origins of the gluteus maximus are demonstrated. David E. Gwinn et al. J Bone Joint Surg Am 2007;89:408- 412 ©2007 by The Journal of Bone and Joint Surgery, Inc.

7. Schematic diagram showing an axial cut through the sacrum with a suture anchor in place. David E. Gwinn et al. J Bone Joint Surg Am 2007;89:408- 412 ©2007 by The Journal of Bone and Joint Surgery, Inc.

8. The final repair on the right (R) side. David E. Gwinn et al. J Bone Joint Surg Am 2007;89:408- 412 ©2007 by The Journal of Bone and Joint Surgery, Inc.