3/6/2017 1 Anterior Cruciate Ligament Surgery Roger Ostrander, MD Andrews Institute Anatomy Anatomy Function • Primary restraint to anterior tibial translation • Secondary restraint to internal tibial rotation Anatomy • Length: 32mm (range 22 to 41mm) • Width: 10mm (range 7 to 12mm) • Innervation: Tibial nerve (posterior articular nerve) – Infiltrates capsule posteriorly – Golgi tendon receptors • Blood supply: middle genicular artery • Strength: 2200N Anatomy Background • Incidence of ACL rupture: • 50 per 100,000 persons per year – ~200,000 ACL ruptures in USA per year – ~175,000 ACL recons per year in USA – Initial cost of ACL recon exceeds 2 billion dollars
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Anterior Cruciate Ligamentandrewsref.org/docs/ACL_Ostrander Short 2_Final.pdfAnterior Cruciate Ligament Surgery Roger Ostrander, MD Andrews Institute A tomy A tomy nction • Primary
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3/6/2017
1
Anterior Cruciate LigamentSurgery
Roger Ostrander, MD
Andrews Institute
Anatomy
Anatomy
Function• Primary restraint to
anterior tibial
translation
• Secondary restraint to
internal tibial rotation
Anatomy
• Length: 32mm (range 22 to
41mm)
• Width: 10mm (range 7 to
12mm)
• Innervation: Tibial nerve
(posterior articular nerve)
– Infiltrates capsule
posteriorly
– Golgi tendon receptors
• Blood supply: middle genicular
artery
• Strength: 2200N
Anatomy Background
• Incidence of ACL
rupture:
• 50 per 100,000 persons
per year
– ~200,000 ACL ruptures in
USA per year
– ~175,000 ACL recons per
year in USA
– Initial cost of ACL recon
exceeds 2 billion dollars
3/6/2017
2
7
Epidemiology
» 70% of ACL injuries occur during sport participation.
» Peak age group: 15-30
» Females: 4-6 times rate of ACL injury when compared to males.