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. 2014 Oct 1;3(5):250–254. doi: 10.1089/biores.2014.0020

Table 1.

Group Fracture Data and Other Characteristics

Groupsa Ultimate fracture loadb(N) Energy absorbed (N-m) X-ray density(central head region) (mmAl) X-ray density scoreb BMDb(g/cm2) Proximal humerus volume (cm3) Bulk density (g/cm3) Fracture patternc
Group 1 (control, n=8) 4176 10.7 8.0 0.18 0.38 67.7 0.13 1, 2, 5, 6, 6, 6, 7, 7
  (2003) (7.0) (2.2) (0.04) (0.13) (16.5) (0.04)  
  866–6853 2.7–21.6 4.9–11.6 0.12–0.25 0.08–0.49 43–89 0.03–0.18  
Group 2 (n=6) 4041 11.8 7.3 0.17 0.24 77.8 0.08 1, 1, 1, 1, 3, 7
  (1568) (8.5) (1.5) (0.03) (0.07) (22.1) (0.02)  
  2224–6673 3.6–26.3 5.4–8.8 0.13–0.22 0.12–0.31 56–108 0.05–0.12  
Group 3 (n=6) 3885 7.7 6.2 0.15 0.27 70.8 0.11 1, 2, 5, 7, 7, 7
  (1170) (3.4) (0.8) (0.02) (0.06) (20.2) (0.03)  
  2714–5694 3.9–11.8 5.5–7.4 0.12–0.18 0.19–0.35 55–109 0.07–0.14  
Group 4 (n=12) 3700 10.8 6.2 0.14 0.35 86.6 0.12 1, 1, 1, 1, 3, 5, 5, 5, 6, 6, 7, 7
  (1227) (5.2) (1.2) (0.03) (0.10) (17.6) (0.03)  
  2091–6183 3.0–18.5 4.6–8.7 0.10–0.19 0.14–0.51 60–118 0.07–0.17  

Mean, (standard deviation), and range provided for each category.

a

Group 1, control bones (no rotator cuff repair); Group 2, transosseous suture-only repair (single row); Group 3, anchor-only repair (single row); Group 4, double-row TOAK repair.

b

Fracture load measured in Newtons (N); X-ray density score calculated as [central head density/anteroposterior breadth; (mmAl/mm)] bone mineral density (BMD) from dual-energy X-ray absorptiometry analysis.

c

Fracture pattern numerical designation described in methods section. All data are shown for fracture pattern.