A Unique Case of Negative Weight-bearing Line Ratio in a Young Male Adult: Insights and Implications

Opening-wedge high tibial osteotomy (OWHTO) is a well-documented surgical intervention for medial compartment osteoarthritis with knee varus deformity. The optimal alignment, specifically targeting the Fujisawa point and managing a negative weight-bearing line ratio (WBLR), remains a challenge, espe...

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Main Authors: Chang-Lin Wu, Chen-Heng Hsu, Chieh-An Chung, Yi-Sheng Chan, Kuo-Yao Hsu, Alvin Chao-Yu Chen, Joe Chih-Hao Chiu, Cheng-Pang Yang
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2024-10-01
Series:Formosan Journal of Musculoskeletal Disorders
Subjects:
Online Access:https://journals.lww.com/10.4103/fjmd.FJMD-D-23-00025
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author Chang-Lin Wu
Chen-Heng Hsu
Chieh-An Chung
Yi-Sheng Chan
Kuo-Yao Hsu
Alvin Chao-Yu Chen
Joe Chih-Hao Chiu
Cheng-Pang Yang
author_facet Chang-Lin Wu
Chen-Heng Hsu
Chieh-An Chung
Yi-Sheng Chan
Kuo-Yao Hsu
Alvin Chao-Yu Chen
Joe Chih-Hao Chiu
Cheng-Pang Yang
author_sort Chang-Lin Wu
collection DOAJ
description Opening-wedge high tibial osteotomy (OWHTO) is a well-documented surgical intervention for medial compartment osteoarthritis with knee varus deformity. The optimal alignment, specifically targeting the Fujisawa point and managing a negative weight-bearing line ratio (WBLR), remains a challenge, especially with severe varus deformities. We detail the case of a 46-year-old Asian male medical staff member with a negative WBLR and severe varus deformity due to a combination of traumatic events and underlying osteoarthritis. Despite the existing debate around alignment targets, our patient underwent OWHTO alongside a segmental meniscus transplant using autologous tendon graft. One-year postoperative assessments showed improved alignment, a negative McMurray test result, and enhanced patient-reported outcomes. This case underscores the potential of integrating OWHTO and medial meniscus autograft transplantation in patients with challenging presentations, such as a negative WBLR. Large corrections in such patients’ risk enhancing the medial proximal tibial angle leading to altered knee dynamics. Our approach demonstrates the viability of a concurrent meniscus transplant with a focus on neutral alignment, aiming to mitigate risks associated with overcorrection. Combining OWHTO with meniscus autograft transplantation can be a feasible solution for complex cases presenting with negative WBLR, offering improved patient outcomes and function at 6-month follow-up. Further research is needed to validate these findings in larger patient cohorts.
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spelling doaj-art-a154eeee435044fba5489d3fd2ba0d1e2025-08-20T02:16:34ZengWolters Kluwer Medknow PublicationsFormosan Journal of Musculoskeletal Disorders2210-79402210-79592024-10-0115416016510.4103/fjmd.FJMD-D-23-00025A Unique Case of Negative Weight-bearing Line Ratio in a Young Male Adult: Insights and ImplicationsChang-Lin WuChen-Heng HsuChieh-An ChungYi-Sheng ChanKuo-Yao HsuAlvin Chao-Yu ChenJoe Chih-Hao ChiuCheng-Pang YangOpening-wedge high tibial osteotomy (OWHTO) is a well-documented surgical intervention for medial compartment osteoarthritis with knee varus deformity. The optimal alignment, specifically targeting the Fujisawa point and managing a negative weight-bearing line ratio (WBLR), remains a challenge, especially with severe varus deformities. We detail the case of a 46-year-old Asian male medical staff member with a negative WBLR and severe varus deformity due to a combination of traumatic events and underlying osteoarthritis. Despite the existing debate around alignment targets, our patient underwent OWHTO alongside a segmental meniscus transplant using autologous tendon graft. One-year postoperative assessments showed improved alignment, a negative McMurray test result, and enhanced patient-reported outcomes. This case underscores the potential of integrating OWHTO and medial meniscus autograft transplantation in patients with challenging presentations, such as a negative WBLR. Large corrections in such patients’ risk enhancing the medial proximal tibial angle leading to altered knee dynamics. Our approach demonstrates the viability of a concurrent meniscus transplant with a focus on neutral alignment, aiming to mitigate risks associated with overcorrection. Combining OWHTO with meniscus autograft transplantation can be a feasible solution for complex cases presenting with negative WBLR, offering improved patient outcomes and function at 6-month follow-up. Further research is needed to validate these findings in larger patient cohorts.https://journals.lww.com/10.4103/fjmd.FJMD-D-23-00025high tibial osteotomymeniscus autograft transplantationweight-bearing line ratio
spellingShingle Chang-Lin Wu
Chen-Heng Hsu
Chieh-An Chung
Yi-Sheng Chan
Kuo-Yao Hsu
Alvin Chao-Yu Chen
Joe Chih-Hao Chiu
Cheng-Pang Yang
A Unique Case of Negative Weight-bearing Line Ratio in a Young Male Adult: Insights and Implications
Formosan Journal of Musculoskeletal Disorders
high tibial osteotomy
meniscus autograft transplantation
weight-bearing line ratio
title A Unique Case of Negative Weight-bearing Line Ratio in a Young Male Adult: Insights and Implications
title_full A Unique Case of Negative Weight-bearing Line Ratio in a Young Male Adult: Insights and Implications
title_fullStr A Unique Case of Negative Weight-bearing Line Ratio in a Young Male Adult: Insights and Implications
title_full_unstemmed A Unique Case of Negative Weight-bearing Line Ratio in a Young Male Adult: Insights and Implications
title_short A Unique Case of Negative Weight-bearing Line Ratio in a Young Male Adult: Insights and Implications
title_sort unique case of negative weight bearing line ratio in a young male adult insights and implications
topic high tibial osteotomy
meniscus autograft transplantation
weight-bearing line ratio
url https://journals.lww.com/10.4103/fjmd.FJMD-D-23-00025
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