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Table 2 Patient demographics and operative data

From: Posterior wedge osteotomy and debridement for Andersson lesion with severe kyphosis in ankylosing spondylitis

Patient Age (years) Sex Osteotomy level Preoperative 2-year follow-up Complication
Frankel LK (°) Frankel LK (°)
 1 27 M 2 Frankel E 35.9 Frankel E −21.2  
 2 22 M 1 Frankel E 41 Frankel E 2.8  
 3 35 M 2 Frankel C 20.6 Frankel E −44.6  
 4 40 M 1 Frankel E 61.2 Frankel E 17.9  
 5 44 M 1 Frankel D 30 Frankel E 6  
 6 31 M 1 Frankel E 64.6 Frankel E 18.9  
 7 39 F 1 Frankel E 66.4 Frankel E 23.8 Cerebrospinal fluid leakage
 8 34 M 1 Frankel D 66.4 Frankel E 22.3  
 9 38 M 1 Frankel E 67.4 Frankel E 23.2 Pneumonia
 10 41 M 1 Frankel D 60.8 Frankel E 12.9  
 11 35 M 1 Frankel E 45.1 Frankel E 1.8  
 12 38 M 1 Frankel E 51 Frankel E 8  
 13 33 M 1 Frankel E 45.4 Frankel E 2  
 14 43 M 1 Frankel E 68.1 Frankel E 25.9  
Mean ± SD 35.7 ± 6.1     51.7 ± 15.6   7.1 ± 19.5