title: Post-arthroscopic osteonecrosis of the medial tibial plateau: a case series.
abstract: BACKGROUND
  Avascular necrosis after arthroscopic surgery of the knee has already been published. The purpose of this article is to report on the frequently misdiagnosed entity of osteonecrosis of the medial tibial plateau.
  
  
  METHODS
  Charts and radiographs of a consecutive series with isolated medial tibial plateau osteonecrosis were analyzed. The criterion for inclusion was the absence of trauma. Six caucasian female patients with an average age of 76.5 years complied with this criterion. Three of these cases had had arthroscopic intervention for medial meniscal lesion within the previous year.
  
  
  CONCLUSIONS
  The etiology of these necroses remains unclear. Osteonecrosis must be taken into account as a possible cause of persistent knee pain after surgery. Correlation between arthroscopic treatment and necrotic processes in the tibial plateau must still be regarded with skepticism.
authors.affiliation: Clinic for Orthopaedics, Sana Kliniken Sommerfeld, 16766, Sommerfeld, Germany. axel@marx.eu.
authors.forename: Axel
authors.identifier: http://orcid.org/0000-0002-7393-503X
authors.initials: A
authors.lastname: Marx
authors.affiliation: Clinic for Orthopaedics, Sana Kliniken Sommerfeld, 16766, Sommerfeld, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Beier
authors.affiliation: Clinic for Orthopaedics, Sana Kliniken Sommerfeld, 16766, Sommerfeld, Germany.
authors.forename: Pouria
authors.initials: P
authors.lastname: Taheri
authors.affiliation: Clinic for Orthopaedics, University Magdeburg, 39120, Magdeburg, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Röpke
authors.affiliation: Department of Pathology, University Magdeburg, 39120, Magdeburg, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Kalinski
authors.affiliation: Clinic for Orthopaedics, Sana Kliniken Sommerfeld, 16766, Sommerfeld, Germany.
authors.forename: Andreas M
authors.initials: AM
authors.lastname: Halder
mesh_terms: D015502:Absorptiometry, Photon; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008592:Menisci, Tibial / Q000000981:diagnostic imaging / Q000473:pathology*; D010020:Osteonecrosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000473:pathology*; D011183:Postoperative Complications; D011859:Radiography; D013977:Tibia / Q000000981:diagnostic imaging / Q000473:pathology*
keywords: Arthroscopy; Osteonecrosis; Osteoporosis; Tibial plateau fracture