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Table 2 Bone mineral densities (BMD), trabecular bone score (TBS) and hip structural analysis parameters over time. Due to her age, T and Z-scores are identical

From: Changes to bone mineral density, the trabecular bone score and hip structural analysis following parathyroidectomy: a case report

 

August 2010 a

January 2018 b

8 months Pre-PTx

March 2019 b

6 months Post-PTx

March 2020 b

18 months Post-PTx

Bone Mineral Density

 LS BMD (g/cm2)

1.06

1.02

1.44

1.38

 LS T-score

−0.3

−1.4

+ 1.8

+ 1.3

 % Change

 

Baseline

+ 42%

+ 38%

 TPF BMD (g/cm2)

0.94

0.84

1.05

1.16

 TPF T-score

−0.2

−1.6

0

+ 0.8

 % Change

 

Baseline

+ 25%

+ 36%

 FN BMD (g/cm2)

0.94

0.81

1.05

1.16

 FN T-score

0.0

−1.6

+ 0.2

+ 1.1

 %Change

 

Baseline

+ 30%

+ 43%

 UD-R BMD (g/cm2)

0.28c

0.27

0.31

0.34

 UD-R T-score

−0.9c

−4.3

−3.4

−2.8

 % Change

 

Baseline

+ 13%

+ 23%

 1/3-R BMD (g/cm2)

0.76c

0.62

0.59

0.63

 1/3-R T-score

 

−2.9

−3.3

−2.9

 % Change

 

Baseline

−4.8%

+ 1.6%

 TBS

 

1.56

1.68

1.56

 TBS T-score

 

+ 0.8

+ 2.0

+ 0.8

 % Change

 

Baseline

+ 8%

0%

Hip Geometry and Hip Structural Analysis

 Femoral neck cortical width (mm) (% Change)

 

4.6

7.5 (+ 63%)

6.9 (+ 50%)

 Femoral calcar width (mm) (% Change)

 

3.5

4.1 (+ 17%)

4.2 (+ 20%)

 Femoral shaft width (mm) (% Change)

 

5.5

5.6 (+ 1.8%)

6.5(+ 18%)

 Buckling Ratio (% Change)

 

3.4

2.1 (−38%)

2.2 (−35%)

 Body Mass Index (kg/m2)

 

26.71

26.80

25.64

  1. aScan performed on Norland XR800
  2. bScan performed on Lunar iDXA
  3. cNorland measures combined ultradistal radius and ulnar BMD. 1/3 radius T-score was unavailable