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Fig. 3 | Journal of Orthopaedic Surgery and Research

Fig. 3

From: Additional lateral plate fixation has no effect to prevent cage subsidence in oblique lumbar interbody fusion

Fig. 3Fig. 3

Images obtained in a 77-year-old man who presented with back pain and neurogenic intermittent claudication (BMI: 29.7 kg/m2; BMD: 114.1 mg/cm3). a and b Preoperative magnetic resonance imaging revealed moderate stenosis at L4–5. c and d Postoperative anteroposterior and lateral radiographs revealed the satisfactory position of hardware. The angle between screws was 17.8° in the anteroposterior radiograph. e and f Anteroposterior and lateral radiographs at 7 weeks after the initial surgery revealed cage subsidence and the migration of lateral plate and screws. The angle between screws was 7.9° in the anteroposterior radiograph. g Computed tomography coronal reconstruction confirmed the migration of lateral plate and screws. h Computed tomography sagittal reconstruction confirmed cage subsidence. i and j Anteroposterior and lateral radiographs after revision surgery with cortical bone trajectory screw placement in midline lumbar fusion (MIDLF) and left L4 laminotomy

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