J Med Assoc Thai 2009; 92 (12):189

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The Location of Pes Anserinus Insertion in Thai People
Kijkunasathian C Mail, Limitlaohaphan C , Saengpetch N , Saitongdee P , Woratanarat P

Background: The semitendinosus and gracilis tendon are commonly used for ligamentous reconstruction.
Inaccurate skin incision may cause complications such as cutting the main tendon, inadequate graft length
and sciatic nerve injury. There have been no reports about the insertion site of these tendons among Thai
people.

Objective: To describe the distance between pes anserinus insertion and tibial tuberosity.

Material and Method: Eighty five cadaveric knees were dissected. We measured the distance between tibial
tuberosity and tendon insertion and collected by the side and sex.

Results:
The median distance between tibial tuberosity and tendon insertion was 0.5 centimeter at the
vertical plane and the horizontal plane below tibial tuberosity was 2 and 2.5 centimeters in female and male,
respectively. There was a statistically significant difference of the horizontal plane between male and female
(p-value <0.01).

Conclusion:
The location of pes anserinus insertion in Thai population may be more proximal than previous
report.

Keywords: Semitendinosus, Gracilis, Pes anserinus insertion

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