title: Intra-articular risks of suprapatellar nailing.
abstract: To determine the risks to local anatomy near the starting point for tibial nailing during suprapatellar nailing, 15 fresh-frozen hemipelvis specimens were nailed using a suprapatellar technique. After nail passage, the menisci and articular surfaces, anterior cruciate ligament (ACL) insertion, intermeniscal ligament, and fat pad were assessed for injury. The distance from the entry portal to the menisci, articular surfaces, and ACL insertion was determined. Medial meniscus injury occurred in 1 (6.7%) specimen and medial articular injury in 2 (13%). Nails passed through the fat pad in all specimens; intermeniscal ligament injury occurred in 3 (20%) specimens. The ACL insertion and lateral structures were not injured in any specimen. The distance from the entry portal margin to the lateral and medial menisci was 6.46±2.47 mm and 4.74±3.17 mm, respectively. The distances to the lateral and medial articular margins measured 10.33±3.62 mm and 6.54±3.57 mm, respectively. The distance to the ACL insertion averaged 5.80±3.94 mm. Suprapatellar nailing is associated with a risk of injury to anterior knee structures comparable to other nailing techniques. Additional clinical studies are warranted to further define the role of this technique in the management of tibial fractures.
authors.affiliation: Department of Orthopaedics and Rehabilitation, San Antonio Military Medical Center, San Antonio, TX 78234, USA. Michael.beltran@amedd.army.mil
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Beltran
authors.forename: Cory A
authors.initials: CA
authors.lastname: Collinge
authors.forename: Jeanne C
authors.initials: JC
authors.lastname: Patzkowski
authors.forename: Brendan D
authors.initials: BD
authors.lastname: Masini
authors.forename: Robert E
authors.initials: RE
authors.lastname: Blease
authors.forename: Joseph R
authors.initials: JR
authors.lastname: Hsu
mesh_terms: D000273:Adipose Tissue / Q000293:injuries; D000070598:Anterior Cruciate Ligament Injuries; D001858:Bone Nails / Q000009:adverse effects*; D002102:Cadaver; D005594:Fracture Fixation, Intramedullary / Q000009:adverse effects*; D006801:Humans; D007718:Knee Injuries / Q000209:etiology*; D007719:Knee Joint; D008023:Ligaments, Articular / Q000293:injuries; D013978:Tibial Fractures / Q000601:surgery*; D000070600:Tibial Meniscus Injuries