Table 4.
Ultrasound data of all imaged joints. Data for 162 US scans were collected and frequency of scanning was calculated for each joint. One centre routinely scanned all wrist and hand joints. A high percentage of small joints of the hands with the right MCP 2 and both wrist joints being most frequently assessed
| Jointa | LEFT SIDE (n = 162) | RIGHT SIDE (n = 162) |
|---|---|---|
| MCP 1 | 99 (61%) | 102 (63%) |
| MCP 2 | 112 (69%) | 122 (75%) |
| MCP 3 | 108 (67%) | 117 (72%) |
| MCP 4 | 104 (64%) | 110 (68%) |
| MCP 5 | 104 (64%) | 114 (70%) |
| IP | 70 (43%) | 68 (42%) |
| PIP 2 | 88 (54%) | 90 (56%) |
| PIP 3 | 87 (54%) | 89 (55%) |
| PIP 4 | 74 (46%) | 76 (47%) |
| PIP 5 | 74 (46%) | 75 (46%) |
| Wrist | 118 (73%) | 121 (75%) |
| Elbow | 5 (3%) | 7 (4%) |
| Shoulder | 2 (1%) | 1 (1%) |
| Knee | 10 (6%) | 8 (5%) |
| Ankle | 6 (4%) | 6 (4%) |
| Mid-foot | 1 (1%) | 1 (1%) |
| MTPs | 9 (6%) | 12 (7%) |
| Other b | 12 (7%) | |
aAbbreviations: MCP = metacarpophalangeal; IP = interphalangeal; PIP = proximal interphalangeal; MTP = metatarsophalangeal
bOther joints recorded as: flexor tendon, post. Tibial, hip, epicondyle, carpometacarpal, distal interphalangeal, toe