Lateral extra-articular tenodesis (LET) is
being performed more frequently with anterior cruciate ligament
(ACL) reconstruction (ACLR) to decrease graft failure rates. The
posterior tibial slope (PTS) affects ACL graft failure rates. The
effect of ACLR + LET on tibial motion and graft forces with
increasing PTS has not been elucidated.
In conclusion, increased PTS was confirmed to
increase graft forces linearly. Although ACLR + LET reduced graft
force compared with ACLR alone, slope reduction had a larger effect
across all testing conditions. No other clinically significant
differences were noted between ACLR with versus without LET in
regard to graft force, ATT, or IR.
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