Table 2 Descriptive data of the anatomical structures assessed
From: Structural ultrasound of joints and tendons in healthy children: development of normative data
Anatomical structure | N | Median [minimum - maximum] |
|---|---|---|
Cartilage* | ||
Femoral head | 488 | 2.5 [0.4–10.3] |
Trochlea knee | 496 | 3.0 [1.4–5.8] |
Talar dome | 494 | 1.5 [0.1–6.1] |
Head of 1st metatarsal bone | 489 | 1.8 [0.4–7.3] |
Head of 2nd metacarpal bone | 489 | 1.5 [0.5–6.9] |
Bone-capsular distance# | ||
Acetabulofemoral recess | 485 | 3.4 [0.9–9.1] |
Suprapatellar recess | 489 | 0.0 [0.0–11.6] |
Parapatellar recess | 461 | 0.0 [0.0–3.2] |
Tibiotalar recess | 495 | 0.0 [0.0–3.7] |
Recess MTP1 joint | 494 | 0.0 [0.0–4.1] |
Lateral radiohumeral recess | 495 | 0.0 [0.0–0.8] |
Anterior radiohumeral recess | 495 | 0.0 [0.0–4.2] |
Posterior fossa elbow | 493 | 0.0 [0.0–5.1] |
Radiolunate recess | 473 | 0.0 [0.0–2.8] |
Lunate-capitate recess | 472 | 0.0 [0.0–1.5] |
Capitate-metacarpal 3 recess | 473 | 0.0 [0.0–1.8] |
Recess MCP2 joint | 492 | 0.0 [0.0–1.8] |
Tendons† | ||
Biceps tendon | 497 | 5.0 [1.5–9.3] |
Patellar tendon | 497 | 22.3 [2.9–40.6] |
Extensor digitorum communis tendon | 489 | 10.7 [3.4–24.6] |
Extensor carpi ulnaris tendon | 481 | 6.1 [2.0–11.5] |
Flexor digitorum (superficial and profound) tendon of the 2nd finger | 484 | 6.4 [2.7–10.8] |