title: Pseudoaneurysm of the superior lateral genicular artery: case report of a rare complication after total knee arthroplasty.
abstract: BACKGROUND
  Pseudoaneurysm of superior lateral genicular artery following total knee arthroplasty is a rare complication and has been reported following lateral release performed for eversion of patella in a knee with tight lateral structures.
  
  
  METHODS
  This report describes a case of pseudo aneurysm of superior lateral geniculate artery that developed after primary Total knee arthroplasty for a stiff knee in a 68 year old patient. Patient presented with pain and rapidly increasing swelling in early post operative period. Diagnosis was made on duplex ultrasound and confirmed by angiography. Angiographic coil embolisation of the pseudoaneurysm was performed. Since no lateral release was performed in this case, the probable mechanism was shear injury to the vessel.
  
  
  CONCLUSIONS
  Pseudoaneurysm of superior lateral genicular artery can occur in absence of lateral release by shear injury to an atherosclerotic vessel. Angiographic coil embolisation appears to be the best method for treating such post arthroplasty pseudoaneurysm because of less chance of infection, non interference with rehabilitation and diagnosis and treatment during same procedure.
authors.affiliation: Department of Orthopedics, All India Institute of Medical Sciences, Ansari, Nagar, New Delhi 110029, India.
authors.forename: Pramod
authors.initials: P
authors.lastname: Saini
authors.affiliation: Department of Orthopedics, All India Institute of Medical Sciences, Ansari, Nagar, New Delhi 110029, India.
authors.forename: Sanjay
authors.initials: S
authors.lastname: Meena
authors.affiliation: Department of Orthopedics, All India Institute of Medical Sciences, Ansari, Nagar, New Delhi 110029, India.
authors.forename: Rajesh
authors.initials: R
authors.lastname: Malhotra
authors.affiliation: Department of Radiodiagnosis, All India Institute of Medical Sciences, Ansari, Nagar, New Delhi 110029, India.
authors.forename: Shivanand
authors.initials: S
authors.lastname: Gamanagatti
authors.affiliation: Department of Orthopedics, All India Institute of Medical Sciences, Ansari, Nagar, New Delhi 110029, India.
authors.forename: Vijay
authors.initials: V
authors.lastname: Kumar
authors.affiliation: Department of Orthopedics, All India Institute of Medical Sciences, Ansari, Nagar, New Delhi 110029, India.
authors.forename: Vaibhav
authors.initials: V
authors.lastname: Jain
keywords: Embolization; Genicular artery; Pseudo aneurysm; Stiff knee; Total knee arthroplasty