The medial and lateral borders are rounded, whereas the posterior border forms a rough crest which is known as linea aspera.1 Most of the shaft of femur is smooth and rounded and provides origin to extensors of knee except posteriorly where linea aspera provides aponeurotic attachment for the adductors of the thigh.
Linea aspera is an important anatomical and surgical landmark on the shaft of femur.3 To our knowledge, limited data is available in global literature on the morphometric features of linea aspera.
Most nutrient foramina were observed in middle third of the bone that too on linea aspera. All foramina are directed proximally.
[A] Femur Showing Double Nutrient Foramina, both on Linea Aspera of The Shaft, [B] Both Foramina are Directing Upwards
Our study also suggests that 69% of NF in femur specimens was found either on or lateral to the medial lip of the linea aspera
, whereas the remaining was concentrated along the linea aspera
All the foramina were located on flexor surface (posterior surface) of femur near the linea aspera
especially in middle one-third of bone (Type 2).
El foramen nutricio del femur se localizaba en la linea aspera
en el 72,5% (36,25% en el intersticio, 8,75 en el labio lateral de la linea aspera
y 27,5 en el labio labio medial de la linea aspera
), en el 21,25% en la cara medial y en el 6,25% en la cara lateral de la diafisis del hueso.
Several muscles make their insertion at the linea aspera
, which is the area of measurement.
It arose from lower part of lateral extension of linea aspera
, above the origin of the lateral head of gastrocnemius muscle.