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Fig. 6.
Demographics (n = 74, 148 Achilles tendons)
| Mean* | Range | |
|---|---|---|
| Age (years) | 33 ± 11.7 | 18-59 |
| Height (cm) | 183 ± 6.2 | 164-199 |
| Weight (kg) | 85 ± 10.7 | 63-120 |
| BMI | 25.4 ± 2,3 | 21-31 |
The distribution of the pattern of the Achilles tendon structure for two observers using the Öhberg score (n = 74, 148 Achilles tendons)
| Observer 1 | Observer 2 | |||
|---|---|---|---|---|
| Öhberg score | Tendons (n=) | % of 148 tendons | Tendons (n=) | % of 148 tendons |
| 0 | 120 | 81.1 | 124 | 83.8 |
| 1 | 23 | 15.5 | 18 | 12.2 |
| 2 | 3 | 1.4 | 6 | 4.1 |
| 3 | 2 | 1.4 | 0 | 0.0 |
| Total | 148 | 100 | 148 | 100 |
MSU measurements of the Achilles tendon anteroposterior diameter (n = 74, 148 Achilles tendons)
| Short axis | Long axis | |||
|---|---|---|---|---|
| Thickness (mm) Mean* | Range (mm) Min-Max | Thickness (mm) Mean* | Range (mm) Min-Max | |
| Observer 1 | 5.0 (4.9, 5.2) | 3.7-10.6 | 5.0 (4.8, 5.2) | 3.5-11.4 |
| Observer 2 | 5.1 (4.9, 5.2) | 3.7-10.9 | 5.0 (4.8,5.1) | 3.2-11.1 |
| Combined | 5.1 (4.9, 5.2) | 3.7-10.9 | 5.0 (4.9,5.1) | 3.2-11.4 |
The modified four-graded öhberg score for Achilles tendon structure and neovascularization10
| Öhberg score for Achilles tendon structure | Öhberg score for neovascularization | |
|---|---|---|
| 0 | Normal structure (homogeneous echogenicity) | No neovascularization |
| 1 | Light structural changes (discrete hypoechogenic areas) | Mild neovascularization (a few solitary blood vessels) |
| 2 | Moderate structural changes (some well-defined hypoechogenic areas) | Moderate neovascularization (moderate quantity, most transversal blood vessels) |
| 3 | Severe structural changes (extended hypoechogenic areas) | Severe neovascularization (several, mostly horizontal blood vessels spread in the whole depth of the tendon) |