Combined Effects of Graded Foraminotomy and Annular Defect on Biomechanics after Percutaneous Endoscopic Lumbar Decompression: A Finite Element Study

<div>(a) Intradiscal pressure of the L5–S1 under extension moment. (b) Intradiscal pressure of the L4–L5 disc during compression.</div>

Journal of Healthcare Engineering

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Figure 4

Figure 4: Combined Effects of Graded Foraminotomy and Annular Defect on Biomechanics after Percutaneous Endoscopic Lumbar Decompression: A Finite Element Study 

Figure 4 | Combined Effects of Graded Foraminotomy and Annular Defect on Biomechanics after Percutaneous Endoscopic Lumbar Decompression: A Finite Element Study 