{'fraction_non_alphanumeric': 0.02445302445302445, 'fraction_numerical': 0.0, 'mean_word_length': 4.938931297709924, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Design and Mechanics of TLIF/ELIF Implants

Lumbar interbody fusion is the standard treatment for degenerative disc disease. This study served to compute the stress levels and load transfer in a composite structure, consisting of fusion implant, bone-graft that finally becomes fusion-bone, and rods of the dorsal stabilisation. The implant was represented by different materials and the fusion process was simulated by increasing Young's moduli of the bone-graft / fusion-bone component. Fusion implants with a low Young's modulus produce a higher stress and load in the bone-graft / fusion-bone which is advantageous for the fusion, but subject the rods of the dorsal stabilisation to bending stress additionally to axial stress which bears the risk of pedicle screw failure.