Tibia &Fibula :posterior Markings
a. Lateral condyle of tibia – lateral expansion at proximal end of bone;
-flattened superior surface (deepened by lateral meniscus cartilage) articulates on facet just below condyle of femur;
-head of fibula articulates on facet just below condyle;
-anterior aspect serves as distal attachment point for iliotibial tract.
b. Medial condyle oftibia –medial expansion at proximal end of bone;
- flattened superior surface (deepened by lateral meniscus cartilage) articulates with lateral condyle of femur;
-posterior aspect serves as distal attachment point for semimembranosus muscle.
c. Intercondylar eminence of tibia - small elevations located between the medial and lateral condyles;
-anterior and posterior to eminence are roughened depressions that serve as attachment points for the anterior and posterior cruciate ligaments and for the central tips of the medial and lateral menisci.
d. Head of Fibular - small, knob-like extension from the superior end of bone;
-articulates with the lateral condyle of tibia at the proximal tibiofibular joint.
e. Soleal line (popliteal line) of tibia
Oblique ridge that extends along proximal surface;
-marks inferior attachment point for popliteus muscle;
-serves as attachment point for soleus muscle.
f. Medial malleolus of tibia -medial prominence that extends downwardly from distal end of bone;
-articulates with the talus, forming medial portion of the ankle (mortise) joint;
-serves as proximal attachment for deltoid (medial collateral) ligament of the ankle joint.
g. Lateral malleolus of fibula - pointed distal end of the bone;
-articulates with the talus, forming lateral portion of the ankle (mortise) joint;
-serves as proximail attachment for the three components of lateral (collateral) ligament of the ankle.
h. Fibular notch of tibia –deprssion on lateral side of distal tibia;
-articulates with the distal end of fibula.