Unipolar allograft reconstruction for post-traumatic avascular necrosis of the distal tibia: A review of the literature,technique, and case series |
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Affiliation: | 1. Department of Orthopaedics and Rehabilitation, University of Iowa, 200 Hawkins Drive, Iowa City, IA 52242, USA;2. Department of Biomedical Engineering, University of Iowa, 5601 Seamans Center, Iowa City, IA 52242, USA;1. Federal University of Minas Gerais (UFMG), Brazil;2. Federal University of São Paulo (UNIFESP), Brazil;3. Department of Orthopaedic and Trauma Surgery, Ospedale San Carlo, Presidio Ospedaliero di Villa D''Agri, Viale S. Pio da Pietrelcina, 85050 Villa d''Agri, Marsicovetere, PZ, Italy;4. Mater Dei Hospital, Belo Horizonte, Brazil;5. Università degli Studi di Salerno, Italy;1. Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, 82 Gumi-ro 173 Beon-gil, Bundang-Gu, Seongnam, Gyeonggi 13620, South Korea;2. Department of Mathematics, College of Natural Sciences, Ajou University, 206 Worldcup-ro, Yeongtong-gu, Suwon, Gyeonggi 16499, South Korea;1. Department of Orthopaedic Surgery, Yonsei University College of Medicine, Republic of Korea;2. Department of Orthopaedic Surgery, Gwangmyeong Sungae Hospital, Republic of Korea |
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Abstract: | BackgroundAvascular necrosis of the distal tibial plafond following ankle trauma is an underreported and potentially devastating phenomenon. Beyond conservative treatment options, surgical intervention has been limited to ankle arthrodesis, which sacrifices motion and may have longterm sequellae for adjacent hindfoot joints. Total ankle replacement has been historically contraindicated. Unipolar allograft reconstruction provides an option for joint salvage. We present a literature overview, implantation technique, and two cases utilizing matched unipolar distal tibial allograft.MethodsTwo younger patients underwent distal tibia allograft reconstruction for tibial plafond collapse due to post-traumatic avascular necrosis. They were followed to assess for clinical improvement and radiographic graft subsidence.ResultsBoth patients returned to work and activity. One patient had no graft subsidence at four years, but the other patient became symptomatic with graft subsidence at one year.ConclusionsDistal tibia allograft reconstruction can be utilized as a joint salvage surgery for post-traumatic avascular necrosis with collapse of the tibial plafond in younger patients that prefer an alternative to arthrodesis. Results may be mixed and necessitate an engaged, activated patient.Level of evidence: IV. |
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Keywords: | Allograft reconstruction Avascular necrosis Tibial plafond Distal tibia Post-traumatic |
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