Ankylosing Spondylitis: Figures 1-5

	Howard S. An, MD The Morton International Endowed Chair Professor, Orthopaedic Surgery Rush University Medical Center Chicago, IL, USA
	Dino Samartzis, DSc, PhD (C)

FIGURES

Figure 1: Preoperative lateral view of an ankylosing spondylitic patient.

Figure 2: Lateral x–ray of pronounced thoracic kyphosis in an ankylosing spondylitic patient.

Figure 3: Pre–operative sagittal MRI of an ankylosing spondylitic patient.

Figure 4A: Smith–Petersen V–shaped posterior wedge osteotomy.

Figure 4B: Lateral aspect of a Smith–Petersen V–shaped wedge osteotomy.

Figure 5: Posterior aspect of a closed Smith–Petersen wedge osteotomy.

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