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New method of fixation of in-bone implanted prosthesis

New method of fixation of in-bone implanted prosthesis. Mark Pitkin, PhD; Charles Cassidy, MD; Raghuveer Muppavarapu, MD; James Raymond, DVM, MS, DACVP; Maxim Shevtsov, MD; Oleg Galibin, MD; Serge D. Rousselle, DVM, DACVP . Aim

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New method of fixation of in-bone implanted prosthesis

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  1. New method of fixation of in-bone implanted prosthesis Mark Pitkin, PhD; Charles Cassidy, MD; Raghuveer Muppavarapu, MD; James Raymond, DVM, MS, DACVP; Maxim Shevtsov, MD; Oleg Galibin, MD; Serge D. Rousselle, DVM, DACVP

  2. Aim • Present results on effectiveness of new version of titanium porous composite skin and bone integrated pylon (SBIP) • Relevance • SBIP allows direct skeletal attachment of limb prostheses. • New version (“SBIP-3”) may improve bone-pylon bond.

  3. Method • SBIP-3 has side fins designed to improve bond between bone and pylon. • Implanted into hind leg residuum of 3 rabbits. • Fins are positioned inside 2 slots precut in bone walls. • After 13 wk (animal 1) or 26 wk (animals 2 and 3), animals were sacrificed and histopatho-logical samples were collected.

  4. Results • Space between fins and bone into which they were fit was filled with fibrovascular tissue and woven bone. • No substantial inflammation was found.

  5. Conclusion • If further studies substantiate these results, proposed method can become alternative to established technique of implanting prostheses into the medullary canal of the hosting bone.

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