Blood Supply of the Superficial Flexor Tendon in the Horse, as Measured by the Radiosodium Clearance Test

summary A new approach to the problem of flexor tendon repair within the fibro-osseous canal is presented. Using a technique of bevelling the tendon ends and suturing with a fine suture material, under magnification, a sufficiently strong junction is obtained, which enables immediate active mobilisation without strangulation of the blood supply. The junction can resist gap formation up to tensions of 4 Kg. It is postulated that under these conditions tendon nutrition is minimally interfered with, adhesions do not form, and the tendon heals by its own intrinsic healing ability.

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In Vitro Studies of a New Method of Flexor Tendon Repair

Journal of Hand Surgery (European Volume) ◽

10.1016/0266-7681_85_90001-4 ◽

1985 ◽

Vol 10 (2) ◽

pp. 135-141

Author(s):

ROBERT SAVAGE

Keyword(s):

Tensile Strength ◽

Blood Supply ◽

Unsolved Problem ◽

Flexor Tendon ◽

Tendon Repair ◽

Flexor Tendon Repair ◽

Mechanical Factors ◽

A New Technique ◽

Physical Principles

The mechanical factors in tendon repair have been studied and physical principles applied to this unsolved problem. A new technique of tendon repair has been derived and tested in the laboratory. Compared to several well known techniques it has been shown to have three times the tensile strength and to allow one tenth the gap to form between the tendon ends under load. It has been designed not to constrict the blood supply of the tendon and the tests indicate that it will be strong enough to allow early active mobilisation even after inflammation has caused the tendon to soften.

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Innervation of endoneurial microvessels in human sural nerve

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100125002 ◽

1992 ◽

Vol 50 (1) ◽

pp. 920-921

Author(s):

John L. Beggs ◽

Peter C. Johnson ◽

Astrid G. Olafsen ◽

C. Jane Watkins

Keyword(s):

Blood Flow ◽

Blood Vessels ◽

Blood Supply ◽

Peripheral Nerves ◽

Sural Nerve ◽

Nerve Fibers ◽

Arterial Supply ◽

Autonomic Nerve ◽

Vasa Nervorum ◽

Endoneurial Blood Flow

The blood supply (vasa nervorum) to peripheral nerves is composed of an interconnected dual circulation. The endoneurium of nerve fascicles is maintained by the intrinsic circulation which is composed of microvessels primarily of capillary caliber. Transperineurial arterioles link the intrinsic circulation with the extrinsic arterial supply located in the epineurium. Blood flow in the vasa nervorum is neurogenically influenced (1,2). Although a recent hypothesis proposes that endoneurial blood flow is controlled by the action of autonomic nerve fibers associated with epineurial arterioles (2), our recent studies (3) show that in addition to epineurial arterioles other segments of the vasa nervorum are also innervated. In this study, we examine blood vessels of the endoneurium for possible innervation.

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