Clinical Research Directory

Inclusion Criteria: * Sportive, active patient (Tegner score =/\>5) * Age above 18 untill 30 years at time of inclusion * Primary rupture of the anterior cruciate ligament, evidence by history (acute trauma, clicking sensation, swelling within a few hours, instability) and physical examination (positive Lachman, anterior drawer test and/or Pivot shift) * Primary rupture indicated by MRI * No associated ligamentuous disorde of the knee, evidenced by history, physical examination, x-ray or MRI) * Time span between anterior cruciate ligament rupture and operation no longer than 21 days * Willingness to comply to advised rehabilitation protocol supervised by (NFVS registrated) sports physiotherapist Exclusion Criteria: * Infection * Known hypersensitive response for materials used (Cobalt, chroom, nickel) * Serieus pre-existing malaligment of leg indicated for surgery * Tendency for excessive scar tisseu formation, such as arthrofibrosis * History of previous surgery on leg indicated for surgery * History of removal of tendon on leg indicated for surgery * Muscular, neurological or vascular disorders negatively affecting healing or rehabilitation * Cartilage injury requiring (some kind of) cartilage repair surgery (such as microfracture or cell therapy) * Arthrosis more dan ICRS grade 2 evidenced by x-ray * Long(er) term use of relevant medication, such as prednisolon or cytostatica * Pregnancy * Know osteoporosis