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Am J Orthop (Belle Mead NJ). 2009 Mar;38(3):E68-70.

Use of tibialis anterior tendon as distal landmark for extramedullary tibial alignment in total knee arthroplasty: an anatomical study.

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Department of Orthopaedics, New York Medical College, Westchester Medical Center, Valhalla, NY 10595, USA.


We studied the accuracy of using the tibialis anterior tendon (TAT) as a distal landmark for extramedullary alignment in total knee arthroplasty. Forty-five consecutive ankle magnetic resonance imaging scans were reviewed. On the computerized images, a digital ruler was used to measure the distance from the midpoint of the distal tibia (point M) to the TAT. Mean distance was 1.89 mm; range was 0 to 4.5 mm (95% confidence interval, 1.45-2.33). For 7 (15.6%) of the 45 scans, the distance was 0 mm. On 38 scans (84.4%), the TAT was within 2 mm of point M. The TAT is an easily palpable fixed anatomical structure that corresponds very closely to the midpoint of the distal tibia.

[Indexed for MEDLINE]

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