Prediction models for the cross-sectional areas of lower lumbar intervertebral discs and vertebral endplates

Biomechanical Evaluations of Bed-to-Wheelchair Transfer: Gait Belt Versus Walking Belt

“…The finding that gait belt transfers exceed the NIOSH-recommended safe limit for compressive force is consistent with prior reports (Garg et al, 1991a, 1991b; Marras et al, 1999). In addition, some studies have reported associations between body anthropometry and the geometry of lumbar spine and paraspinal muscles (Gungor et al, 2015a, 2015b; Tang, 2013; Tang et al, 2016; Tang et al, manuscript submitted for publication); however, the relationships between anthropometric characteristics and risk of low back pain remain unclear (Frymoyer, 1992; Manchikanti, 2000; Rubin, 2007; Sesek et al, 2014), and must be addressed in future investigations.…”

Predicting the Cross-sectional Areas of Low Back Intervertebral Discs: Archived Medical Record Versus MRI Scans from Asymptomatic Subjects

“…Both Colombini et al (1989 and Turk and Celan (2004) reported that models using composite measures had greater performance to explain the variance within the low back geometry. However, in a recent study, regression models developed using composite measures were outperformed by the ones using easy-to-measure variables (e.g., gender and height) (Tang et al, 2019). On the other hand, some studies found poor correlations between the body anthropometry and the low back vertebral endplates (Seidel et al, 2008).…”

“…In the literature, relatively few regression models predicting human low back geometry have been developed (Colombini et al, 1989;Tang et al, 2019;Turk and Celan, 2004). Unfortunately, there have been conflicting findings regarding the performance of these regression models (Tang et al, 2019).…”

“…In the literature, relatively few regression models predicting human low back geometry have been developed (Colombini et al, 1989;Tang et al, 2019;Turk and Celan, 2004). Unfortunately, there have been conflicting findings regarding the performance of these regression models (Tang et al, 2019). Both Colombini et al (1989 and Turk and Celan (2004) reported that models using composite measures had greater performance to explain the variance within the low back geometry.…”

“…Unfortunately, the significance of low back geometry has not yet been thoroughly investigated and incorporated into the development of biomechanical models (Gungor et al, 2015a(Gungor et al, , 2015bGungor et al, 2019;Tang et al, 2016;Tang et al, 2019). Geometry of the low back (from L3/L4 to L5/S1 level) intervertebral discs (IVDs) has typically been obtained through cadaveric specimens (Hutton and Adams, 1982;Porter et al, 1989) and through the reconstruction of medical images (Tang et al, 2016;Tang et al, 2019). Although these techniques can provide accurate morphometric measurements, they also require very restrictive measurement protocols and considerably high cost associated with the medical imaging usage.…”