15 August 2023>: Clinical Research
Risk Factors and Causes of Reoperation in Lumbar Disc Herniation Patients after Percutaneous Endoscopic Lumbar Discectomy: A Retrospective Case Series with a Minimum 2-Year Follow-Up
Tao Tang 1BCDE , Jiahao Liu 2ACD , Jian Cao 2A , Dingwen He 2AE , Xigao Cheng 2AEG , Shuihua Xie 1CDEFG*DOI: 10.12659/MSM.939844
Med Sci Monit 2023; 29:e939844
Figure 2 Measurement of the ECA: On the sagittal X-ray of the lumbar spine, the bone endplate of lumbar vertebra is in arc shape, and a line was drawn from the summit/bottom of arc along to the endpoints, and the angle between these 2 lines is defined as the ECA.