Composite Indices of Femoral Neck Strength in Middle-Aged Inactive Subjects Vs Former Football Players

Finianos, Boutros; Zunquin, Gautier; Hage, Rawad El

doi:10.1016/j.jocd.2020.06.002

Cited by 15 publications

(1 citation statement)

References 61 publications

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“…As indicated by the calculation formulas of CSI, BSI and ISI, when BMD, weight and height are identical, the larger the FNW, the larger CSI, BSI and ISI will be [ 23 ]. As suggested by the study, the narrower the femoral neck, the lower the bending resistance will be [ 26 ]. The wider the femoral neck and the larger the femoral head, make the more average the hip joint stress distribution will be, which is less prone to stress concentration on the femoral head surface [ 27 ].…”

Section: Discussionmentioning

confidence: 99%

Composite indices of femoral neck strength predicts the collapse of steroid-associated osteonecrosis of the femoral head: a retrospective study

Lin

Cai

Yang³

et al. 2022

BMC Musculoskelet Disord

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Purposes The purpose of this study was to investigate the predictive effect exerted by composite indices of femoral neck strength (compressive strength index (CSI), bending strength index (BSI) and impact strength index (ISI) on the femoral head collapse in steroid-associated ONFH patients. Methods Nonoperative steroid-associated osteonecrosis of the femoral head (ONFH) patients from 2017 to 2019 were selected. The patients fell into the collapsed group and the non-collapsed group according to whether the femoral head collapsed. CSI, BSI and ISI were calculated. Moreover, bone turnover markers were measured. The statistical analysis was conducted on the predictive effects of composite indices of femoral neck strength and bone turnover index on ONFH collapse. Results A total of 62 patients were included. The mean CSI, BSI and ISI were significantly lower in the collapsed group than those in the non-collapsed group (P < 0.05). CSI, ISI,t-P1NP and β-CTx were suggested as the protective risk factors for the femoral head collapse in ONFH patients. The ISI area under the curve values was 0. 878.The mean survival time of the hips of patients with ISI greater than 0.435 was greater (P < 0.05) than that of patients with ISI less than 0.435. Conclusion The composite indices of femoral neck strength can predict steroid-associated ONFH femoral head collapse more effectively than the bone turnover markers. The ISI value of 0.435 is a potential cut-off value, lower than this value can predict the early collapse of steroid-associated ONFH.

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Section: Discussionmentioning

confidence: 99%