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Fig. 5 | BMC Musculoskeletal Disorders

Fig. 5

From: Estimation of the ideal correction of lumbar lordosis to prevent reoperation for symptomatic adjacent segment disease after lumbar fusion in older people

Fig. 5

Images from a 58-year-old man who underwent four-segment spinal fusion. a Preoperative radiograph. b 1-week postoperative radiograph. c MRI revealing the development of symptomatic adjacent segment disease at 2 years and 1 month postoperatively. Preoperatively, the pelvic incidence to lumbar lordosis mismatch (PI-LL) was 6.2°. Postoperatively, the PI-LL was 13.7° and the change in lumbar lordosis was 7.5°. Patients (age ≤ 60) with a PI-LL of > 10° were significantly more likely to develop adjacent segment disease

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