The MCP2 and the wrist plus two extensor compartments are the most affected and responsive joints/tendons out of the US7 score in patients with rheumatoid arthritis-an observational study

Table 4 Joint/tendon combinations as possible scores

Mode	Combination	Included joint/tendon regions
GS	GS1	Dorsal wrist, palmar MCP2
	GS2	Dorsal wrist, palmar MCP2, EDC, ECU
	GS3	Dorsal wrist, palmar MCP2, palmar MCP3
	GS4	Dorsal wrist, palmar MCP2, palmar MCP3, EDC, ECU
	GS5	Dorsal wrist, palmar MCP2, palmar MCP3, EDC, ECU, FT2, FT3
PD	PD1	Dorsal wrist, palmar MCP2
	PD2	Dorsal wrist, palmar MCP2, EDC, ECU
	PD3	Dorsal wrist, palmar MCP2, dorsal MCP2
	PD4	Dorsal wrist, palmar MCP2, palmar MCP3
	PD5	Dorsal wrist, palmar MCP2, palmar MCP3, EDC, ECU
	PD6	Dorsal wrist, palmar MCP2, palmar MCP3, dorsal MCP2, dorsal MCP3
	PD7	Dorsal wrist, palmar MCP2, palmar MCP3, dorsal MCP2, dorsal MCP3, EDC, ECU tendons
	PD8	Dorsal wrist, palmar MCP2, palmar MCP3, dorsal MCP2, dorsal MCP3, EDC, ECU, FT2, FT3
	PD9	Dorsal wrist, palmar MCP2, dorsal MCP2, EDC, ECU

GS greyscale, PD power Doppler, MCP metacarpophalangeal, PIP proximal interphalangeal, MTP metatarsophalangeal, FT/ET2 flexor/extensor tendon on MCP2 level, FT/ET3 flexor/extensor tendon on MCP3 level, FDS/P flexor digitorum superficialis/profundus tendon, EDC extensor digitorum communis tendon (extensor compartment lV), ECU extensor carpi ulnaris tendon (extensor compartment Vl). Combinations in bold were included in the reduced score

ISSN: 1478-6362