Reconstruction of massive knee defects with extensor mechanism deficiency through concurrent anterolateral thigh flap and autogenous hamstring tendon: A report of two cases

Reconstruction of an infected knee joint with a large defect and extensor mechanism deficiency is challenging. In this study, we aim to describe a one-stage reconstruction surgery and provide its surgical outcome. Two patients had patellar open fracture and subsequent septic arthritis; in addition,...

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Main Authors: Wen-Chih Liu, Chih-Hau Chang, Cheng-Chang Lu, Yin-Chih Fu, Chun-Kuan Lu
Format: Article
Language:English
Published: SAGE Publishing 2020-07-01
Series:Journal of Orthopaedic Surgery
Online Access:https://doi.org/10.1177/2309499020935994
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author Wen-Chih Liu
Chih-Hau Chang
Cheng-Chang Lu
Yin-Chih Fu
Chun-Kuan Lu
author_facet Wen-Chih Liu
Chih-Hau Chang
Cheng-Chang Lu
Yin-Chih Fu
Chun-Kuan Lu
author_sort Wen-Chih Liu
collection DOAJ
description Reconstruction of an infected knee joint with a large defect and extensor mechanism deficiency is challenging. In this study, we aim to describe a one-stage reconstruction surgery and provide its surgical outcome. Two patients had patellar open fracture and subsequent septic arthritis; in addition, a large soft tissue defect, loss of patella, and shortening of the patellar tendon were observed. The semitendinosus–gracilis tendon formed a loop to stabilize the patella. A free or supercharged reverse pedicle myocutaneous anterolateral thigh flap with fascial extension is designed to fill the defect and eradicate the infection. Mean clinical follow-up was 18 months. Although some limitation in the knee range of motion was observed, the dynamometer showed only partial loss in peak concentric power and eccentric power. We developed an innovative surgical procedure to alleviate infection and reconstruct a complex knee defect with extensor mechanism deficiency; this procedure resulted in favorable clinical outcomes.
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spelling doaj.art-50cf9a716593439883301637b46b98762022-12-21T23:36:25ZengSAGE PublishingJournal of Orthopaedic Surgery2309-49902020-07-012810.1177/2309499020935994Reconstruction of massive knee defects with extensor mechanism deficiency through concurrent anterolateral thigh flap and autogenous hamstring tendon: A report of two casesWen-Chih Liu0Chih-Hau Chang1Cheng-Chang Lu2Yin-Chih Fu3Chun-Kuan Lu4 Department of Orthopedic Surgery, Kaohsiung Medical University Hospital, Kaohsiung Division of Plastic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung Department of Orthopedic Surgery, Kaohsiung Medical University Hospital, KaohsiungReconstruction of an infected knee joint with a large defect and extensor mechanism deficiency is challenging. In this study, we aim to describe a one-stage reconstruction surgery and provide its surgical outcome. Two patients had patellar open fracture and subsequent septic arthritis; in addition, a large soft tissue defect, loss of patella, and shortening of the patellar tendon were observed. The semitendinosus–gracilis tendon formed a loop to stabilize the patella. A free or supercharged reverse pedicle myocutaneous anterolateral thigh flap with fascial extension is designed to fill the defect and eradicate the infection. Mean clinical follow-up was 18 months. Although some limitation in the knee range of motion was observed, the dynamometer showed only partial loss in peak concentric power and eccentric power. We developed an innovative surgical procedure to alleviate infection and reconstruct a complex knee defect with extensor mechanism deficiency; this procedure resulted in favorable clinical outcomes.https://doi.org/10.1177/2309499020935994
spellingShingle Wen-Chih Liu
Chih-Hau Chang
Cheng-Chang Lu
Yin-Chih Fu
Chun-Kuan Lu
Reconstruction of massive knee defects with extensor mechanism deficiency through concurrent anterolateral thigh flap and autogenous hamstring tendon: A report of two cases
Journal of Orthopaedic Surgery
title Reconstruction of massive knee defects with extensor mechanism deficiency through concurrent anterolateral thigh flap and autogenous hamstring tendon: A report of two cases
title_full Reconstruction of massive knee defects with extensor mechanism deficiency through concurrent anterolateral thigh flap and autogenous hamstring tendon: A report of two cases
title_fullStr Reconstruction of massive knee defects with extensor mechanism deficiency through concurrent anterolateral thigh flap and autogenous hamstring tendon: A report of two cases
title_full_unstemmed Reconstruction of massive knee defects with extensor mechanism deficiency through concurrent anterolateral thigh flap and autogenous hamstring tendon: A report of two cases
title_short Reconstruction of massive knee defects with extensor mechanism deficiency through concurrent anterolateral thigh flap and autogenous hamstring tendon: A report of two cases
title_sort reconstruction of massive knee defects with extensor mechanism deficiency through concurrent anterolateral thigh flap and autogenous hamstring tendon a report of two cases
url https://doi.org/10.1177/2309499020935994
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