Ankle Arthrodesis using Ilizarov Ring Fixator: A Primary or Salvage Procedure? An Analysis of Twenty Cases

Abstract

Introduction: Ankle arthrodesis using the Ilizarov technique provides high union rate with the added benefits of early weight-bearing, and the unique advantage of its ability to promote regeneration of soft tissue around the bone, including skin, muscle and neuro-vascular structures, and its versatility to allow correction of the position of the foot by adjusting the frame post-operatively as needed. We describe our experience with this technique and the functional outcomes in our patients.Materials and Methods: This retrospective study was conducted in 20 ankle fusion cases using the Ilizarov method between the years 2007 and 2017. We defined success in treatment by loss of preoperative symptoms and radiological union on plain radiographs of the ankle.Results: Fusion was achieved in all patients (100%). Immediate post-operative ambulation was with full weight bearing (FWB) in 16 (83%) of the participants and non-weight bearing (NWB) in 3 patients (17%). Post-procedure 11 patients (67%) of the participants who were full weight bearing required some form of support for walking for 2-3 weeks. Post-operatively three patients had pin tract infection requiring intravenous antibiotics. Radiological union took range of 6-12 weeks, mean union time was 8 weeks. Only one patient required bone grafting due to bone loss. Average follow-up period was 10-45 months.Conclusion: The Ilizarov technique has a high union rate and leads to general favourable clinical outcome and may be considered for any ankle arthrodesis but is especially useful in complex cases such as for revisions, soft-tissue compromise, infection and in patients with risk for non-union. Early weight bearing is an extra benefit.

Clinical evaluation of arthrodesis with Ilizarov external fixator for the treatment of end-stage ankle osteoarthritis

“…The lower incidence of complications was also consistent with other research results. [ 20 ] Ilizarov external fixation has the characteristics of strong fixation and allowing axial load compression, which is conducive to the early load-bearing activities of patients after ankle fusion and promotes bone healing. The wearing time of external fixator reduced, which is also conducive to the early recovery of normal life and work.…”

Tibiocalcaneal arthrodesis using the Ilizarov fixator in compromised hosts: an analysis of 19 patients

“…Since the introduction of compression arthrodesis by Charney in 1951, several different surgical procedures have been described as treatment options for ankle destruction of various etiologies [1]. Today, external Ilizarov arthrodesis represents an established and effective procedure in compromised hosts with acute or chronic infections, soft tissue defects, axial malpositions (varus/valgus) and comorbidities (diabetes mellitus, polyneuropathy, peripheral vascular disease, and alcohol abuse) [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. Some authors even consider the Ilizarov method to be the "gold standard" in these difficult situations [2].…”