A Study On Variations Of Nutrient Foramen Of Humerus With Its Clinical Implications
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Date
2019-01
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Publisher
IMED Research Publications
Abstract
Background: Nutrient foramen is an opening into shaft of humerus which gives passage to the blood vessels ofmedullary cavity. The knowledge of nutrient foramen is important in surgical procedures like bone grafting andmore recently in microsurgical vascularized bone transplantation. Lack of an adequate vascular supply cansignificantly delay or prevent fracture healing. Nutrient artery is the major source of blood supply to the longbone and hence plays an important role in fracture healing.Objective: The nutrient foramens obey the rule of ossification, that is directed away from the growing end of thebone or not.Materials and Methods: The present study consisted of 68 (34 right and 34 left) dried humeurus excluding anyfracture or pathological abnormalities. Number and direction of nutrient foramen was observed in each humerus.Location of nutrient foramen in relation with surfaces and zones of humeurus was determined.Result: It has been observed that 94.12% of the humerus had a single nutrient foramen, 6.39% double foramen,all humerus have nutrient foramina. It was concluded that the majority (73.61%) of the nutrient foramina werepresent on the antero-medial surface, 8.33% on the anterolateral surface and 8.33% on the posterior surface ofthe shaft of humerus and 8.33% of nutrient foramina present on anterior border. It was also concluded that most(86.11%) of the foramina present in the zone II followed by zone I (8.33%) then by zone III (5.56%). All foraminawere directed toward the lower end of humerus.Conclusion: By knowing the number and location of the nutrient foramina in humerus would be useful in preventingintra-operative injury of nutrient artery during orthopedic, plastic and reconstructive surgery and will also berelevant in medico legal practice.
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Keywords
Clinical implications, Foraminal index, Humerus, Nutrient foramen
Citation
Rathwa Aashish J, Chavda. Sanjay R. A Study On Variations Of Nutrient Foramen Of Humerus With Its Clinical Implications. International Journal of Anatomy and Research. 2019 Jan; 1: 6132-6137