Correlation of CT-based bone mineralization with drilling-force measurements in anatomical specimens is suitable to investigate planning of trans-pedicular spine interventions.

ABSTRACT: This interdisciplinary study examined the relationship between bone density and drilling forces required during trans-pedicular access to the vertebra using fresh-frozen thoraco-lumbar vertebrae from two female body donors (A, B). Before and after biomechanical examination, samples underwent high-resolution CT-quantification of total bone density followed by software-based evaluation and processing. CT density measurements (n = 4818) were calculated as gray values (GV), which were highest in T12 for both subjects (GV_maxA = 3483.24, GV_maxB = 3160.33). Trans-pedicular drilling forces F (Newton N) were highest in L3 (F_maxB = 5.67 N) and L4 (F_maxA = 5.65 N). In 12 out of 13 specimens, GVs significantly (p < 0.001) correlated with force measurements.

SUBMITTER: Wolff S 

PROVIDER: S-EPMC10796759 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature