ABSTRACT
Introduction: The foramina which leads into a canal on the shaft, through which the vessels enter to supply themedullary cavity is called nutrient foramina. The major source of blood supply during the bone growth anddevelopment is by nutrient artery.Materials and methods: The study was conducted on 218 adult humerii. The number, direction and location ofnutrient foramen were observed with the help of a hand lens. The Total length of humerus, distance of the nutrientforamen from its upper end, Location of the nutrient foramen with respect to the surfaces, zones and the foramenindex were noted.Results: It was observed that 81.19% of the humeri had a single nutrient foramen, 18.35% double foramen, 0.45%triple foramen, where as 3.67% humeri did not have any nutrient foramina. The majority (82.11%) of the nutrientforamina were present on the antero-medial surface, 14.22% on the medial border and 9.63% on the anterolateral surface,7.8%on the posterior border and 0.46% on anterior border of the shaft of humeri. The foramenindex was observed to be 56.35 ±7.36 on right side and 55.57±8.5 on left side, indicating the zonal distributionof foramina in the middle third of the bone.Conclusion: With the increasing number of fracture cases due to various causes, the knowledge of nutrientforamina is of much importance in bone reduction and grafting techniques. The present study adds to theexisting data on nutrient foramina especially in the population of Telangana region.
ABSTRACT
Background: Bone formation, growth and its vitality necessitates blood supply. Nutrient artery is the key sourceof blood supply to the long bone apart from the other important sources like periosteal, metaphyseal andepiphyseal arteries. Nutrient foramina allows nutrient artery. Typically, the direction of the nutrient foramina istowards the elbow joint in radius, away from its growing end. Knowledge of foramen index, number, directionand size of the nutrient foramina assists the surgeon to take an exact section of bone in case of bone resectionand transplantation techniques.Aim: The aim of the present study is to determine the number, position, size, direction of the nutrient foraminaand the Foramen Index of the human dry radius bonesMaterials and Methods: In the present study, 91 right sided and 88 left sided radius bones of unknown age andsex were taken into consideration from the department of anatomy, Mamata Medical College, Khammam,Telanagana.Results: Average length of the radius on the right side was observed to be 23.72 ± 1.93 cm and on left side 23.35± 1.75 cm. The foramen index on right side was 34.92 ± 4.97 cm where as on the left side 34.79 ± 4.43 cm. Thenutrient foramen was directed towards the proximal end of radius in all the bones studied. Most of the foramenwere observed on the anterior surface of the bone. Nutrient foramina was found to be absent in 4 right sided and3 left sided bones.Conclusion: This study may add to the present statistical data available on foramen index, number of foramenand their location in the population of Telangana region, during recent orthopaedic techniques like bone resectionand transplantation