Open AccessFemoral tunnel-interference screw divergence in anterior cruciate ligament reconstruction using bone-patellar tendon-bone graft: A comparison of two techniques
Author(s) -
Vivek Pandey,
Kiran Acharya,
Subba Rao,
S. D. Thirumala Rao
Publication year - 2011
Publication title -
indian journal of orthopaedics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.434
H-Index - 33
eISSN - 1998-3727
pISSN - 0019-5413
DOI - 10.4103/0019-5413.80045
Subject(s) - medicine , anterior cruciate ligament , fixation (population genetics) , sagittal plane , anterior cruciate ligament reconstruction , surgery , orthopedic surgery , radiology , population , environmental health
Interference screw is a popular fixation device used to rigidly fix bone-patellar tendon-bone (B-PT-B) graft both in femoral and tibial tunnels in anterior cruciate ligament (ACL) reconstruction. Parallel placement of screw is difficult in transtibially drilled femoral tunnel but always desired as it affects pullout strength of the graft. Commonly, interference screw into the femoral tunnel is inserted through the anteromedial (AM) or accessory AM portal. These portals are not-in-line with the transtibially drilled femoral tunnel. Furthermore, these portals increase the divergence of the interference screw in the femoral tunnel. We hypothesized that interference screw placement through patellar tendon (PT) portal (through donor defect) in transtibially drilled femoral tunnel can be less divergent. We report the prospective randomized study to investigate the difference of divergence of interference screw placed through PT portal and AM portal and its clinical relevance.