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Journal Title
Title of Journal: Knee Surg Sports Traumatol Arthrosc
Abbravation: Knee Surgery, Sports Traumatology, Arthroscopy
Publisher
Springer Berlin Heidelberg
DOI
10.1007/bf01937333
ISSN
1433-7347
It is better to use multiple anatomical landmarks to reduce errors in component alignment in total knee arthroplasty Therefore it is worthwhile to find a new landmark that can be used as an addition to conventional ones Herein we assessed the dorsal pedis artery as a new distal landmark for extramedullary tibial alignmentFiftytwo ankles in patients undergoing total knee arthroplasty and 10 ankles in normal controls were included Color Doppler ultrasonography was used to locate the dorsal pedis artery at the level of the ankle joint Conventional landmarks including the tibialis anterior tendon the extensor hallucis longus tendon the extensor digitorum longus tendon and the malleolar centre were also located on ultrasound images The distances between the ankle centre and each landmark were measured and comparedThe dorsal pedis artery was absent in 2 patients and impalpable but visible with ultrasonography in other 2 patients The dorsal pedis artery was located anatomically closest to the ankle centre in patients 04 ± 34 mm lateral Statistical analysis showed that the dorsal pedis artery the extensor hallucis longus tendon and the malleolar centre were located significantly closer to the ankle centre comparing with the extensor digitorum longus tendon and the tibialis anterior tendon in both patients and controls p 0001