01192nas a2200217   4500000000100000008004100001260001300042653002800055653000900083653001100092653002000103653002300123100001600146700001500162700001900177245007400196300001100270490000700281520067200288022001400960       2010                            d  c2010 Feb10aBiomechanical Phenomena10aHand10aHumans10aTendon Transfer10aUlnar Neuropathies1 aSchwarz R J1 aBrandsma W1 aGiurintano D J00aA review of the biomechanics of intrinsic replacement in ulnar palsy.  a94-1020 v353 a<p>The actions of the interossei and lumbricals are many and their loss causes significant impairment of hand function. Many procedures have been described to restore intrinsic function following ulnar nerve palsy. There are many biomechanical issues involved in tendon transfers, including choice of muscle-tendon unit, route, insertion site, tension and drag. The surgeon, therefore, should have a good understanding of biomechanical principles to ensure optimal results. In this article the principles of biomechanics are reviewed with specific reference to tendon transfers for intrinsic reconstruction in ulnar palsy, along with their practical implications.</p>  a2043-6289