THE BLOOD SUPPLY OF DEVELOPING WITH SPECIAL REFERENCE TO THE 0. From Humphry the Sicher metaphysis, its more periosteum. nutrient that peripheral Trueta artery did and out the St Thomas’s blood Hospital supply to nutrient the nutrient artery also being supplied by Harrison reach ENGLAND the parts and not LONDON, a dual bone pointed LEWIS, of Anatomy, described compact (1947) the the Department (1858) supplying J. artery (1953) metaphysial LONG BONES METAPHYSES Medical any long supplying believed region, School the bone, supplied that in was central the adult and part arteries wholly vessels Weinmann the metaphysial which periosteal marrow. of derived human supplied the from femur the by metaphysial arteries. and Weinmann plate, and the invading opening tissue. up of the The the Sicher the produced vessels and vessels of the the of vessels blood nutrient arteries in the metaphyses progressively developing approaching and invading of an injected to form in osteoblasts the the to epiphysial applied centre of of supply and described of mesenchymal the to masses tissue. extent bones (1925) masses invading the long FIG. Metatarsal said lumina, cartilaginous Stump ofsyncytial of to determine epiphysial while were formation was in the loops, masses the investigation approaching by the activity syncytial with of this the of vessels hairpin-shaped lacunae cavitation, extension purpose the as long cartilage parts while the The dilated peripheral trabeculae, described cartilage, study of the the cartilage periosteal form of those plate. I twenty-six day rabbit embryo showing nutrient artery giving branches terminating in dilations at the metaphysis of either end. The periosteal plexus of blood vessels can be seen on the surface of the bone. (x35.) METHODS Long injected or bones with teased foetus tibia, Monastral The injected Blue being Indian with bones femora, Fast preparations injected human (e.g., material stained with metatarsals) BNVS cleared ink was and were of paste, were mounted. rabbit embryos used, In the and addition, the young rabbits, bone, l00,s sections, phalanges of a human whole examined. correlated haematoxylin with and histological eosin, sections Heidenhain’s of iron developing rabbit haematoxylin, and or Azan. OBSERVATIONS During the metaphysis, vessels 928 the is being early stages is supplied included of ossification by in the the nutrient developing of a long artery, periosteal bone while all some bone THE the endochondral of the as its blood JOURNAL bone, periosteal plexus supply OF BONE (Fig. AND JOINT including of blood 1). SURGERY BLOOD THE SUPPLY As the periosteal bone grows, vessels, while cavity vessels containing approaching plexus and by the OF DEVELOPING LONG more the periosteal are the metaphysial periosteal artery, vessels of supply, SPECIAL is laid bone REFERENCE down, and is progressively runs while the central through to enter the the part (Figs. of supplied by included to form a medullary peripheral from the the 929 METAPHYSES of the metaphysis bone cavity b a is also The more now derived compact medullary TO THE removed by the nutrient artery. cartilaginous plate are arteries, which WITH bone endochondral marrow supplied the epiphysial nutrient BONES of those periosteal is still supplied shaft parallel the nutrient to its 2 to 5). a 2 FIG. An early stage in the development of a long bone, with a later stage superimposed. Growth of the bone leads to deposition of periosteal bone, a, with its obliquely running periosteal vessels, on the surface of the endochondral bone, b, the peripheral parts of the metaphysis come to be supplied by metaphysial arteries derived from the periosteum. The vessels approaching or the metaphysial its dilated lacunae. related to the epiphysial sections Histological the arteries, Groups Epiphysial epiphysial The that the opened is, on all pattern sides diaphysis. No vessels epiphysis, up in the vascular same of were at any the seen whether cartilage centre traversing derived from where they meet the end in a saccular dilation vessels at the advancing secondary c. approach the artery plate, with intimately epiphysial plate which open into the dilated cartilage lacunae which the fine vessels approaching the epiphysial plate in and have a peripheral mesenchymal sheath of cells saccular endings are the blood-filled lacunae, unlined degenerating is seen plate, terminations fine vessels 6 to 8). endothelial-walled and terminate by funnel-shaped endings thus become filled with blood. Thus, injected specimens are endothelial-walled, developing into osteoblasts, while their by endothelium, plate, have specialised of two or three plate (Figs. show that cartilage the of (Figs. margin ossification epiphysial 9 to 11). of ossification in the epiphysis- except surface at the cartilaginous plate, from related to diaphysis to stage. DISCUSSION The running periosteal VOL. 38 B, compact an periosteal oblique plexus NO. 4, and of blood NOVEMBER bone parallel vessels, 1956 of the course while shaft of a developing through the the endochondral long compact bone, bone is supplied bone and derived until its removal, by vessels from is supplied the 930 0. J. LEWIS I: 0 1. I FIG. 3 Figure 3-Injected tibia of a entering bone parallel to the compact periosteal bone of injected tibia of a thirty-seven part of the metaphysis FIG. thirty-seven day old rabbit obliquely running periosteal the shaft. (x 30.) Figure day old rabbit. The blood from periosteal vessels can FIG. Same bone as Figure entering from 4, showing the 4 showing nutrient artery vessels supplying the 4-Upper extremity of supply of the peripheral be seen. (x 3.) 5 a metaphysial periosteum. (x THE artery, a, 35.) JOURNAL OF BONE AND JOINT SURGERY THE by the the as SUPPLY BLOOD OF DEVELOPING nutrient the In artery. medullary cavity. bone the The grows supply of the and Harrison LONG later BONES stages metaphysis metaphysial WITH the is at arteries region in the adult femur preparation day saccular dilations supplies by from TO THE the the the bone nutrient periosteum take cells itself fill the columns lined by a layer formed, thus so The VOL. the end 38 B, dilated of dilated of no cartilage endothelial metaphysis tibia showing on the vessels eroding plate. (x progressively of endothelial periphery of each of the NO. growth 4, NOVEMBER lacunae contact cells. cells In specimens layer is observed vascular 1956 the the up at Trueta to the of a the the epiphysial the line of the inner the as and this play the in the of cartilage invasion their cartilaginous walls. by Trueta and and of osteoblasts tubules new-formed are the in eroding cartilaginous line advances to 35.) a part a layer of vessels related (x ossification may process walls of ossification described of advancing cartilage wake lining centre loops, blood Thus, blood 110.) endothelial-walled injected secondary at with extends forming the but 6 injected embryo rabbit cartilage in direct dilations and The at of saccular lacunae the is apparently of only, over FIG. 7 FIG. 8 Figure 7-Showing the line of saccular dilations on the vessels where they are the epiphysial cartilage plate. Injected tibia of twenty-six day rabbit embryo. Figure 8-Another IOOjs section of same bone as in Figure 7. (x 100.) Blood marrow artery 2). cartilage blood 931 METAPHYSES to an ever-increasing extent. the nutrient artery supplied any FIG. Teased twenty-six artery supplied derived (Fig. REFERENCE nutrient first peripheral parts of the metaphysis (1953) found no evidence that metaphysial SPECIAL bone. blood-filled in similar fashion and Harrison, beneath the 932 0. J. LEWIS adult articular vessels the their Since the produce were the explained. Section of twenty-six metaphysis day rabbit of tibia embryo of settle a from by vessels the supply derived periosteum take progressively from the completion of to which, for infection. hairpin-like form and be sluggish and in this as has the been sug- vessels described, the be less readily terminations saccular, blood emboli fragile readily Ifthe would as dilated of would usually haematomata of advancing walls region haematomata Alternatively, are the line by of flow might, therefore, in the them easily situation. showing SUMMARY blood-filled lacunae, a, corresponding to the saccular dilations shown in Figures 6, 7 and 8. Stained with Heidenhain’s iron haematoxylin, 8js section. (x 80.) is supplied only act as a nidus ofsuch vessels derived by at the metaphysis trauma small of would is confined the might occurrence 9 blood cartilage, gested, perhaps dilations walls. of calcified are saccular endothelial ossification FIG. cartilage, and only over 1 from the Periosteal . and bone endochondral 2. In the the nutrient supply earliest of its is supplied bone stages artery. periosteal nutrient the metaphysial part, the vessels artery. of development Later, peripheral by by the extent metaphysis arteries derived of their area of increasing. 4’ I FIG. 10 FIG. 11 Figure 10-Section of metaphysis of a twenty-five day rabbit embryo tibia. Blood cells are seen lying free in the lacunae without the intervention of an endothelial wall. e, endothelial cell. 8 section. Heidenhain’s iron haematoxylin. (x 330.) Figure lI-The same bone as in Figure 10, again showing the unlined bloodfilled lacunae at the termination of a vessel which opens in funnel-like fashion into the lacuna. e, endothelial cell. (x 500.) 3. In end in saccular lacunae, epiphysial injected with specimens dilations. no endothelial the blood vessels Histological lining and approaching the sections show these into which open epiphysial dilations the blood cartilaginous to be blood-filled vessels plate cartilage approaching the plate. THE JOURNAL OF BONE AND JOINT SURGERY THE BLOOD I would like assistance SUPPLY OF DEVELOPING to Professor and thank D. Mr J. S. Fenton and LONG V. Davies BONES for WITH valuable Mr A. L. Wooding SPECIAL advice and REFERENCE criticism, TO THE Mr G. METAPHYSES Maxwell for 933 technical for the photographs. REFERENCES HARRIS, HARRIS, The Vascular H. A. (1929): of Anatomy, H. Supply ofBone, with Special Reference to the Epiphysial Cartilage. Journal 64, 3. A. (1933): Bone Growth in Health and Disease. London: Humphrey Milford, Oxford University Press. HUMPHRY, G. M. A. (1919): KEITH, (1858): Studies A Treatise on the Human on the Human Anatomical Skeleton. Changes which Cambridge: Accompany Macmillan Certain and Co. Growth-disorders of the Body. Journal of Anatomy, 54, 101. PAYTON, C. G. (1934): The Position of the Nutrient Foramen and Direction of the Nutrient Canal in the Long Bones of the Madder-fed Pig. Journal of Anatomy, 68, 500. STUMP, C. W. (1925): The Histogenesis of Bone. Journal of Anatomy, 59, 136. TRUETA, J., and HARRISON, M. H. M. (1953): The Normal Vascular Anatomy of the Femoral Head in Adult Man. Journal of Bone and Joint Surgery, 35-B, 442. WEINMANN, J. P., and SICHER, H. (1947): Bone and Bones. Fundamentals of Bone Biology. London: Henry Kimpton. VOL. 38 B, NO. 4, NOVEMBER 1956