title: Patellofemoral contact forces and pressures during intramedullary tibial nailing.
abstract: Patellofemoral joint forces and pressures were measured in a cadaver model during intramedullary nailing of the tibia. A significant increase in contact pressures was found at the lateral facet of the patellofemoral articulation using the medial paratendinous approach (P = 0.01) and at the medial facet when using the trans-patellar tendon approach (P = 0.001) to the proximal tibia. Increased contact pressures at the patello-femoral joint may result in chondral injury, which in turn may cause anterior knee pain, a common complication of tibial nailing.
authors.affiliation: Department of Orthopaedic Surgery, Meath Hospital, Dublin, Ireland.
authors.forename: A T
authors.initials: AT
authors.lastname: Devitt
authors.forename: K A
authors.initials: KA
authors.lastname: Coughlan
authors.forename: T
authors.initials: T
authors.lastname: Ward
authors.forename: D
authors.initials: D
authors.lastname: McCormack
authors.forename: D
authors.initials: D
authors.lastname: Mulcahy
authors.forename: P
authors.initials: P
authors.lastname: Felle
authors.forename: J P
authors.initials: JP
authors.lastname: McElwain
mesh_terms: D018771:Arthralgia / Q000209:etiology; D001696:Biomechanical Phenomena; D001858:Bone Nails; D002102:Cadaver; D005269:Femur / Q000503:physiopathology; D005594:Fracture Fixation, Intramedullary / Q000009:adverse effects / Q000379:methods; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology*; D010329:Patella / Q000503:physiopathology; D016059:Range of Motion, Articular; D013977:Tibia / Q000601:surgery*; D014159:Transducers