NUTRIENT FORAMEN; STUDY OF NUTRIENT FORAMEN IN DRIED HUMAN CLAVICLE.

Hussain, Anwaar; Khalid, Jawaria; Rauf, Abdul

Objectives: To study the nutrient foramina of the dried human clavicle with respect to their position, number and direction for clinical interest. Study Design: Cross sectional study. Setting: Anatomy Department Faisalabad Medical University Faisalabad. Period: Six months from July to December 2017. Material and Methods: 60 dried human clavicles taken from bone bank of Anatomy Department Faisalabad Medical University Faisalabad. The foramina were studied according to their location, and number and direction. The foramina index was calculated using Hughes Formula by measuring the average total length and average length of foramina from sternal end of the clavicle. Results: The nutrient foramen was observed in all 60(100%) of the clavicle. Single foramen was present in 22 (36.6%) clavicle and double foramen in 30(50%) clavicle. Triple and quadruple foramen in 6(10%) and 2(3.3%) clavicles respectively. The 34 left clavicles posses single foramen 12 (41.1%), double foramen 14(35.2%) while triple and quadruple are 6(17.6%) and 2(5.8%) respectively. Total 26 right clavicles had 10 (38.4%) single foramen and 16(61.5%) double foramen. Total number of foramen in all 60 clavicles were 108 of which 61.1% are located on posterior surface of the clavicle, 27% were found on inferior surface and rest 11.1% were on anterior surface. The clavicle having more than one foramina are 28 out of which 64.2% was having both inferior and posterior foramina, 21.4 % was anterior and posterior while 14.28% was located on triple sites anterior, inferior and posterior. We also found 90% of foramina were present on middle 1/3 and 10% on lateral 1/3. 98.3% of the foramina were directed to acromial end while rest 1.7 % to sternal end. The mean length of foramina from sternal end is 7.46 cm and mean maximum length of the clavicle was 14.51cm. The mean foramina index was 51.41. Conclusion: It is concluded from the study that most of the foramina are located on middle 3rd of the clavicle the commonest site of the fractures of the bone. Most of the foramina are located on the posterior surface denoting its blood supply from the neighboring blood supply. The knowledge of the foramina and its blood supply is important for fracture healing and bone grafting.

CLAVICLE; DONOR blood supply

Professional Medical Journal, 2018, Vol 25, Issue 8, p1252

1024-8919

Academic Journal

10.29309/tpmj/2018.25.08.76