Secondary Knee Osteoarthritis due to Neurofibromatosis Type 1 Treated with above the Knee Amputation: A Case Report

Background. Neurofibromatosis Type 1 (NF-1) has a variety of associated orthopaedic manifestations that have been previously reported. We report a case of severe, grade 4 knee osteoarthritis (OA) with recurrent subluxation and joint laxity due to multiple extra-articular neurofibromas ultimately tre...

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Main Authors: Jay Patel, Jeffrey Whiting, Daniel Jones
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Case Reports in Orthopedics
Online Access:http://dx.doi.org/10.1155/2013/782106
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author Jay Patel
Jeffrey Whiting
Daniel Jones
author_facet Jay Patel
Jeffrey Whiting
Daniel Jones
author_sort Jay Patel
collection DOAJ
description Background. Neurofibromatosis Type 1 (NF-1) has a variety of associated orthopaedic manifestations that have been previously reported. We report a case of severe, grade 4 knee osteoarthritis (OA) with recurrent subluxation and joint laxity due to multiple extra-articular neurofibromas ultimately treated with Above the Knee Amputation (AKA). Case Description. A 39-year-old man presented with multiple neurofibromas and lymphedema leading to degenerative changes of the knee. Conservative treatment failed due to the severity of the knee degeneration and patient discomfort. Likewise, arthroplasty was not possible due to poor bone quality and joint instability. Therefore, AKA was selected to relieve symptoms and provide functional improvement. six months after the procedure the patient has increased functional capacity for ambulation and activities of daily living, as well as significant decrease in pain and discomfort. Clinical Relevance. Extra-articular neurofibromas causing severe secondary OA in relatively young patients can be functionally improved with AKA and prosthetic device use.
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spelling doaj-art-8dd62e2d87d04fabbffaa9eed7a70a712025-08-20T03:37:54ZengWileyCase Reports in Orthopedics2090-67492090-67572013-01-01201310.1155/2013/782106782106Secondary Knee Osteoarthritis due to Neurofibromatosis Type 1 Treated with above the Knee Amputation: A Case ReportJay Patel0Jeffrey Whiting1Daniel Jones2Orthopaedic Department, Saint Louis University, 3635 Vista Boulevard, St. Louis, MO 63104, USAOrthopaedic Department, Saint Louis University, 3635 Vista Boulevard, St. Louis, MO 63104, USAOrthopaedic Department, Saint Louis University, 3635 Vista Boulevard, St. Louis, MO 63104, USABackground. Neurofibromatosis Type 1 (NF-1) has a variety of associated orthopaedic manifestations that have been previously reported. We report a case of severe, grade 4 knee osteoarthritis (OA) with recurrent subluxation and joint laxity due to multiple extra-articular neurofibromas ultimately treated with Above the Knee Amputation (AKA). Case Description. A 39-year-old man presented with multiple neurofibromas and lymphedema leading to degenerative changes of the knee. Conservative treatment failed due to the severity of the knee degeneration and patient discomfort. Likewise, arthroplasty was not possible due to poor bone quality and joint instability. Therefore, AKA was selected to relieve symptoms and provide functional improvement. six months after the procedure the patient has increased functional capacity for ambulation and activities of daily living, as well as significant decrease in pain and discomfort. Clinical Relevance. Extra-articular neurofibromas causing severe secondary OA in relatively young patients can be functionally improved with AKA and prosthetic device use.http://dx.doi.org/10.1155/2013/782106
spellingShingle Jay Patel
Jeffrey Whiting
Daniel Jones
Secondary Knee Osteoarthritis due to Neurofibromatosis Type 1 Treated with above the Knee Amputation: A Case Report
Case Reports in Orthopedics
title Secondary Knee Osteoarthritis due to Neurofibromatosis Type 1 Treated with above the Knee Amputation: A Case Report
title_full Secondary Knee Osteoarthritis due to Neurofibromatosis Type 1 Treated with above the Knee Amputation: A Case Report
title_fullStr Secondary Knee Osteoarthritis due to Neurofibromatosis Type 1 Treated with above the Knee Amputation: A Case Report
title_full_unstemmed Secondary Knee Osteoarthritis due to Neurofibromatosis Type 1 Treated with above the Knee Amputation: A Case Report
title_short Secondary Knee Osteoarthritis due to Neurofibromatosis Type 1 Treated with above the Knee Amputation: A Case Report
title_sort secondary knee osteoarthritis due to neurofibromatosis type 1 treated with above the knee amputation a case report
url http://dx.doi.org/10.1155/2013/782106
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