title: Autologous Bone Grafting and Revision Plating in a Case of Persistent High Tibial Osteotomy Non-Union.
abstract: BACKGROUND
  Uni-compartmental knee arthritis may be treated with several surgical options including uni-compartmental knee arthroplasty, total knee arthroplasty and high tibial osteotomy. Non-union is a well-established and common complication that may arise from the latter option and few reports have shown successful treatment of persistent non-union of high tibial osteotomy.
  
  
  METHODS
  We present a case of persistent non-union after high tibial osteotomy treated with autologous iliac crest bone grafting and revision plating. At 1 year post-operative interval, successful union was achieved after revision internal fixation. In addition, a good functional outcome was achieved.
  
  
  CONCLUSIONS
  In this patient with persistent non-union following high tibial osteotomy, the aim of revision was to restore alignment and effect bone healing while preserving adequate tibial bone stock. Revision plating with autologous bone grafting is a good surgical strategy in the treatment ofpersistent non-union with hardware failure.
authors.affiliation: Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
authors.forename: Tan Shi
authors.initials: TS
authors.lastname: Ming
authors.affiliation: Department of Orthopaedic Surgery, Singapore General Hospital, Singapore.
authors.forename: Wong Merng
authors.initials: WM
authors.lastname: Koon
keywords: Bone Graft; High Tibial Osteotomy; Non-union; Revision