Abstract:
PURPOSE:To assess distance changes between the femoral and tibial attachment points of 3 different anterior cruciate ligament (ACL) tunnel entry positions throughout the range of knee motion in cadaveric knees. METHODS:The ACLs of 11 fresh-frozen cadaveric knees (from 6 men and 5 women) were removed using radiofrequency. Three tibial tunnel placements were made using a cannulated awl, and three 2.4-mm pilot tunnels were drilled on the lateral femoral condyle. One end of an inelastic suture was inserted from each of the 3 femoral holes and fixed on the femoral cortex using a suture button in turn, whereas the other end of the suture was passed through the cannulated awl and fixed on each of the 3 tibial placements in turn, with constant tension. Distance changes of the suture throughout the range of knee movement (0º, 90º, and 135º of knee flexion) were measured for each combination of tibial and femoral positions. RESULTS:The distance was minimum when the knee was in full extension (p < 0.0001). Most of the distance changes occurred during initial flexion (0º-90º). The most isometric position (mean ± standard deviation [SD] distance change, 2.78 ± 0.93 mm; p < 0.0001) was noted when the suture was at the anteromedial bundle placement in the femur and anterior in the tibia. The least isometric position (mean ± SD distance change, 10.37 ± 2.08 mm; p < 0.0001) was noted when the suture was at the mid-bundle position in the femur and at the posterolateral bundle insertion in the tibia. The anatomic position resulted in a mean ± SD distance change of 7.63 ± 2.01 mm (p < 0.0001). The femoral position had a greater influence on distance change than the tibial position. CONCLUSION:None of the ACL graft positions was isometric. Anatomic ACL positioning resulted in comparable anisometry to the native ACL. The minimum distance for all graft positions was noted in full extension, in which position the graft should be fixed during anatomic ACL reconstruction.
journal_name
J Orthop Surg (Hong Kong)journal_title
Journal of orthopaedic surgery (Hong Kong)authors
Smith JO,Yasen S,Risebury MJ,Wilson AJdoi
10.1177/230949901402200310subject
Has Abstractpub_date
2014-12-01 00:00:00pages
318-24issue
3eissn
1022-5536issn
2309-4990journal_volume
22pub_type
杂志文章abstract::The failure rate of rotator cuff repair is high. Regenerative techniques using material scaffolds, stem cells, and growth factors help augment repair and regenerate tissue. We reviewed the literature of various regenerative techniques in terms of (1) enhancing the repair process, (2) tissue regeneration, (3) mechanica...
journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章,评审
doi:10.1177/230949901302100223
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章,评审
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 临床试验,杂志文章
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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doi:10.1177/230949901502300303
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pub_type: 杂志文章
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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更新日期:2010-04-01 00:00:00
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/2309499020917276
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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journal_title:Journal of orthopaedic surgery (Hong Kong)
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900301100219
更新日期:2003-12-01 00:00:00
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
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更新日期:2017-01-01 00:00:00
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
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更新日期:2020-01-01 00:00:00
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
doi:10.1177/230949900901700204
更新日期:2009-08-01 00:00:00
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journal_title:Journal of orthopaedic surgery (Hong Kong)
pub_type: 杂志文章
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