Introduction: The course and distributions of common peroneal nerve (CPN) are important during surgical procedures viz. arthroscopic knee surgery, tibial osteotomy and traction injuries. The present study aims to investigate the morphometry of CPN and its relationship to the adjacent anatomical landmarks. Materials and Methods: The present study was carried on 20 lower limb specimens. The length of the lower limb was measured from the anterior superior iliac spine to the medial malleolus. The distance of origin of CPN from the most prominent points of greater trochanter, iliac crest and ischial tuberosity were measured. The length of CPN was measured from its origin to bifurcation. Results: The length of the lower limb ranged from 75 to 91 cm. The distance between the Origin of CPN- iliac crest was 43.8±7.6 and 40.9±3.4 cm on right and left side respectively. The most common origin of CPN was at the lower third of the thigh (N=11), followed by middle third (N= 5) and at the upper third (N=4). The mean length of CPN was 17.7±7 cm on right and 19.1±7.1 cm on left side. Conclusion: The present study highlights the morphometry of CPN and its relations to important landmarks, the knowledge of which is important for successful surgery in this region.
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