Power Doppler ultrasonographic assessment of the ankle in patients with inflammatory rheumatic diseases

Table 3 The frequencies of various pathologies in the symptomatic ankles with either early or established rheumatoid arthritis

	Early RA	Established RA	Overall
Number of ankles	62	38	100
Joint synovitis
Talocrural joint synovitis	32.2%	39.5%	35.0%
Subtalar joint synovitis	30.7%	36.8%	33.0%
Talonavicular joint synovitis	27.4%	26.3%	27.0%
Overall	48.4%	68.4%	56.0%
Tenosynovitis
Ankle flexors (TP, FDL, FHL)	54.8%	31.6%	46.0%
Peroneal tendons (PB, PL)	33.9%	21.1%	29.0%
Ankle extensors (TA, EHL, EDL)	12.9%	5.3%	10.0%
Overall	69.4%	47.4%	61.0%
Achilles tendon involvement
Retrocalcaneal bursitis	35.5%	13.2%	27.0%
AT enthesitis	19.4%	26.3%	22.0%
AT tendonitis	12.9%	13.2%	13.0%
AT paratenonitis	8.1%	2.6%	6.0%
Overall	38.7%	39.5%	39.0%

TP: Tibialis posterior; FDL: Flexor digitorum longus; FHL: Flexor hallucis longus; PB: Peroneus brevis; PL: Peroneus longus; TA: Tibialis anterior; EDL: Extensor digitorum longus; EHL: Extensor hallucis longus; AT: Achilles tendon; RA: Rheumatoid arthritis.