Gross Anatomical Studies on the Tibia and Fibula of Rhesus Monkey (Macaca mulatta)

Abstract

The present study was conducted on the tibia and fibula bones obtained from carcass of one adult rhesus
monkey. The tibia bone was a long, thick prismatic bone. Shaft was 3 sided throughout its proximal half. Distal
end was cylindrical. Lateral surface presented a shallow sulcus muscularis. Caudal surface had a single indistinct
rd popliteal line. Medial surface was slightly convex up to distal 3 of its length. The nutrient foramen was located in
rd th upper 3 of tibia close to the lateral border. Anterior border was prominent in its upper 4 and constituted the tibial
crest. The distal extremity was quadrilateral in outline. It presented two deep antero-posterior grooves separated
by a ridge. Fibula was laterally compressed bone lateral to the tibia. It consisted of a proximal head, shaft and
distally lateral malleolus. Tibial index was recorded as 0.05. Tibial platymeric index was found to be 0.56. Tibial
mid-shaft index represented the ratio of tibial proximal condyles to its shaft. It was 0.28. Distal tibial index was
recorded as 0.85.