Demographic Risk Factors for Increased Intra-Articular Injuries with Delayed Anterior Cruciate Ligament Reconstruction

Abstract

percent underwent horizontal AMZ with an average anteriorization of 10.7mm and medialization of 13.4mm. Ninety-four percent (16/17) were satisfied and would reopt for surgery. Eighty two percent reported being active at last follow-up. Nearly half engaged in moderate to high intensity sports. Thirty-five percent engaged in recreational activities while 18% were minimally active. Four of sixteen reported substantial activity-related pain at last follow-up (all grade III arthrosis at surgery). The average pain score [range 0-10] for the remaining 75% was 2.1 (p<0.001); and the majority of these patients demonstrated grade I-II arthrosis. Post-AMZ symptomatic medial patellar subluxation was corrected successfully in two patients. Fifty-nine percent underwent removal of hardware and 41% required additional procedures. There were no cases of post-op PF instability or conversion to knee arthroplasty. Conclusion: AMZ is effective in ameliorating symptoms and facilitating active lifestyles 15-20 years out in select young patients with lateral or distal PF arthrosis. Ninetyfour percent were satisfied and would choose the procedure again.