title: Sonographically guided posteromedial approach for intra-articular knee injections: a safe, accurate, and efficient method.
abstract: Osteoarthritis of the knee can be a debilitating and extremely painful condition. In patients who desire to postpone knee arthroplasty or in those who are not surgical candidates, percutaneous knee injection therapies have the potential to reduce pain and swelling, maintain joint mobility, and minimize disability. Published studies cite poor accuracy of intra-articular knee joint injections without imaging guidance. We present a sonographically guided posteromedial approach to intra-articular knee joint injections with 100% accuracy and no complications in a consecutive series of 67 patients undergoing subsequent computed tomographic or magnetic resonance arthrography. Although many other standard approaches are available, a posteromedial intra-articular technique is particularly useful in patients with a large body habitus and theoretically allows for simultaneous aspiration of Baker cysts with a single sterile preparation and without changing the patient's position. The posteromedial technique described in this paper is not compared or deemed superior to other standard approaches but, rather, is presented as a potentially safe and efficient alternative.
authors: Department of Radiology, Jackson Memorial Hospital, University of Miami, Miami, Florida USA. jtresley@med.miami.edu.
authors: Jonathan
authors: J
authors: Tresley
authors: Department of Radiology, Jackson Memorial Hospital, University of Miami, Miami, Florida USA.
authors: Jean
authors: J
authors: Jose
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D007270:Injections, Intra-Articular / Q000379:methods*; D007719:Knee Joint / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D018084:Ultrasonography, Interventional; D055815:Young Adult
keywords: knee arthrography; musculoskeletal ultrasound; posteromedial knee injection; sonographically guided injection