Data | Value |
Inferior pole of the calcaneus: plantar aponeurosis enthesis | |
Plantar aponeurosis structure | (0 or 1) |
Plantar aponeurosis thickness >4.4 mm | (0 or 1) |
Inferior pole of calcaneus erosion | (0 or 3) |
Inferior pole of calcaneus enthesis calcification | (0, 1, 2 or 3) |
Plantar aponeurosis enthesis power Doppler | (0 or 3) |
Superior pole of the calcaneus: Achilles tendon enthesis | |
Achilles tendon structure | (0 or 1) |
Achilles tendon thickness >5.29 mm | (0 or 1) |
Retrocalcaneal bursitis | (0 or 1) |
Posterior pole of calcaneus erosion | (0 or 3) |
Posterior pole of calcaneus enthesis calcification | (0, 1, 2 or 3) |
Posterior pole of calcaneus power Doppler | (0 or 3) |
Tibial tuberosity: distal patellar ligament enthesis | |
Patellar ligament structure | (0 or 1) |
Patellar ligament thickness >4 mm | (0 or 1) |
Infrapatellar bursitis | (0 or 1) |
Tibial tuberosity erosion | (0 or 3) |
Tibial tuberosity enthesis calcification | (0, 1, 2 or 3) |
Tibial tuberosity enthesis power Doppler | (0 or 3) |
Inferior pole of the patella: proximal patellar ligament enthesis | |
Patellar ligament structure | (0 or 1) |
Patellar ligament thickness >4 mm | (0 or 1) |
Inferior pole of patella erosion | (0 or 3) |
Inferior pole of patella enthesis calcification | (0, 1, 2 or 3) |
Inferior pole of patella enthesis power Doppler | (0 or 3) |
Superior pole of the patella: quadriceps tendon enthesis | |
Quadriceps tendon structure | (0 or 1) |
Quadriceps tendon thickness >6.1 mm | (0 or 1) |
Superior pole of patella erosion | (0 or 3) |
Superior pole of patella enthesis calcification | (0, 1, 2 or 3) |
Superior pole of patella enthesis power Doppler | (0 or 3) |
Olecranon tuberosity: triceps tendon enthesis | |
Triceps tendon structure | (0 or 1) |
Triceps tendon thickness >4.3 mm | (0 or 1) |
Olecranon erosion | (0 or 3) |
Olecranon enthesis calcification | (0, 1, 2 or 3) |
Olecranon enthesis power Doppler | (0 or 3) |
Each item scores one point, except for calcification (0, 1, 2 or 3) and erosion and Doppler signal (0 or 3). The total possible score on both sides (12 entheses) is 136.
Sensitivity 83.3%, specificity 82.8%, positive predictive value 80.8%, negative predictive value 85.7%, positive likelihood ratio (LR+) 4.87, negative likelihood ratio (LR−) 0.19.