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Vietnam Osteoporosis Workshop, HCMC 2006

Any ratio 0.85. Vertebral dimensions adjusted for specific level.

Wedge ratio, biconcave ratio, compress ratio.

Ha, Hm, Hp

(Kleerekoper et al., 1984)

3SD below mean for two criteria

Predicted wedge, biconcave and posterior ratios.

Ha, Hm, Hp

(McCloskey et al., 1993)

3SD below individually adjusted Z-scores.

Height reduction.

Ha, Hm, Hp

(Ross et al., 1993)

Different cutoff values trim-curved normative data.

Wedge ratio, biconcave ratio, compress ratio.

Ha, Hm, Hp

(Black et al., 1991)

Adjusted height or area below 1st percentile of normative values.

Index of Radiographic Area

Ha, Hm, Hp

(Smith-Bindman et al., 1991)

>3SD and <4SD from mean (grade 1); >4SD from mean (grade 2).

Wedge ratio, biconcave ratio, compress ratio.

Ha, Hm, Hp

(Eastell et al., 1991)

15% difference from expected value

Spine Fracture Index

Ha, Hm, Hp

(Raymakers et al., 1990)

Any ratio 0.75, mean height 15% less than adjacent vertebrae.

Wedge ratio, biconcave ratio, compress ratio.

Ha, Hm, Hp

(Harrison et al., 1990)

Below 1st decile above 10th decile of normative value (Minne et al., 1988); cutoff values adjusted to visual interpretation (Davies et al., 1993).

Wedge variable (PRH), relative posterior height.

Ha, Hp

(Davies et al., 1989; Davies et al., 1993)

Below lower limit of normative values. Values are adjusted to the dimensions of the T4> 2SD from mean.

Wedge angle, PRH, PDAH, area

Hp, Width

(Gallagher et al., 1988; Hedlund and Gallagher, 1988; Hedlund et al., 1989)

Below lower limit of normative values. Values are adjusted to the dimensions of the T4> 2SD from mean.

Spine Deformity Index

Ha, Hm, Hp

(Minne et al., 1988)

Fracture definition

Parameters calculated

Measurement

Reference

Major contributions to quantitative morphometric

assessments of Vert fx

PDAH, percent difference in anterior height between adjoining vertebrae; PRH, percent reduction of anterior to posterior height. Ha, anterior; Hm, middle; and Hp, posterior height of each vertebral body from T12 to L4.

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