Tissue engineered tendons and ligaments
a technology of tendons and ligaments, applied in the field of tissue engineered tendons and ligaments, can solve the problems of disordered structure which imparts this ability to the connective tissue, tendon defects, and proves difficult problems for orthopedic surgery and hand surgery, and achieves the effect of moderate tensile strength
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Construction of Neo-tendon
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[0035] Sheets approximately 100 microns thick composed of an embossed non-woven mesh of polyglycolic acid with interfiber interstitial spacing averaging 75 to 100 microns in diameter, arranged as either a random array of fibers, or as fibers in parallel (Dexon, Davis and Geck), were cut into pieces approximately 0.4 cm×4 cm and set aside. Tendon was obtained from the shoulder of newborn calves within six hours of sacrifice. The tendons were diced into pieces approximately 0.5 cm×0.5 cm and placed in a sterile 50 ml conical tube. The tendon pieces were washed twice with Dulbecco's phosphate buffered saline (PBS) (Gibco, Grand Island, N.Y.). A sterile 0.396 Collagenase solution was prepared by mixing 75 mg of type collagenase (Worthington, Freehold, N.J.) with 25 ml of Hamm's F-12 medium (Gibco, Grand Island, N.Y.). The tendon fragments were incubated in the collagenase solution for 12-16 hours at 37° C. on a shaker. After digestion, the...
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