A New Simple and Practical Clinical Classification for Tenosynovial Giant Cell Tumors of the Knee

Objective To propose a simple and practical clinical classification for tenosynovial giant cell tumor (TGCT) of the knee. Methods A retrospective study was conducted to verify the value and significance of this clinical classification. TGCT growth patterns, knee joint capsule, and bone erosion were...

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Main Authors: Kai Zheng, Xiu‐chun Yu, Yong‐cheng Hu, Ming Xu, Jing‐yu Zhang
Format: Article
Language:English
Published: Wiley 2022-02-01
Series:Orthopaedic Surgery
Subjects:
Online Access:https://doi.org/10.1111/os.13179
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author Kai Zheng
Xiu‐chun Yu
Yong‐cheng Hu
Ming Xu
Jing‐yu Zhang
author_facet Kai Zheng
Xiu‐chun Yu
Yong‐cheng Hu
Ming Xu
Jing‐yu Zhang
author_sort Kai Zheng
collection DOAJ
description Objective To propose a simple and practical clinical classification for tenosynovial giant cell tumor (TGCT) of the knee. Methods A retrospective study was conducted to verify the value and significance of this clinical classification. TGCT growth patterns, knee joint capsule, and bone erosion were applied to establish this novel clinical classification. Seventy‐eight patients who underwent surgery for TGCT from 2008 to 2016 were identified. This novel clinical classification was retrospectively applied to patients' existing classification, and patients with different TGCT types were statistically compared to verify the significance of the clinical classification. Results The clinical classification included three types and four subtypes. Type 1: localized TGCT, Subtype 1a: localized intra‐articular TGCT, Subtype 1b: localized extra‐articular TGCT. Type 2: diffuse TGCT, Subtype 2a: diffuse intra‐articular TGCT with bone normal, Subtype 2b: diffuse intra‐articular TGCT with bone destruction. Type 3: diffuse TGCT across the knee joint capsule. The mean follow‐up time for the 78 patients was 59.6 months. Twenty‐one patients were in Subtype 1a, four were Subtype 1b, 38 were Subtype 2a, seven were Subtype 2b, and eight were Type 3. Oncological results and surgical complications differed significantly (P = 0.000, P = 0.000). The mean Musculoskeletal Tumor Society functional scores differed significantly at 27.8 for Type 1 patients, 22.9 for Type 2 patients, and 17.0 for Type 3 patients (P = 0.000). Conclusions This clinical classification can be easily used to evaluate TGCT of all knees prior to surgery or other treatments and can help determine surgical options.
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spelling doaj.art-6147cf306859475597ff5f808f53348b2022-12-22T00:02:51ZengWileyOrthopaedic Surgery1757-78531757-78612022-02-0114229029710.1111/os.13179A New Simple and Practical Clinical Classification for Tenosynovial Giant Cell Tumors of the KneeKai Zheng0Xiu‐chun Yu1Yong‐cheng Hu2Ming Xu3Jing‐yu Zhang4Department of Orthopaedics The 960th Hospital of the PLA Joint Logistice Support Force Jinan ChinaDepartment of Orthopaedics The 960th Hospital of the PLA Joint Logistice Support Force Jinan ChinaDepartment of Bone Oncology Tianjin Hospital Tianjin ChinaDepartment of Orthopaedics The 960th Hospital of the PLA Joint Logistice Support Force Jinan ChinaDepartment of Bone Oncology Tianjin Hospital Tianjin ChinaObjective To propose a simple and practical clinical classification for tenosynovial giant cell tumor (TGCT) of the knee. Methods A retrospective study was conducted to verify the value and significance of this clinical classification. TGCT growth patterns, knee joint capsule, and bone erosion were applied to establish this novel clinical classification. Seventy‐eight patients who underwent surgery for TGCT from 2008 to 2016 were identified. This novel clinical classification was retrospectively applied to patients' existing classification, and patients with different TGCT types were statistically compared to verify the significance of the clinical classification. Results The clinical classification included three types and four subtypes. Type 1: localized TGCT, Subtype 1a: localized intra‐articular TGCT, Subtype 1b: localized extra‐articular TGCT. Type 2: diffuse TGCT, Subtype 2a: diffuse intra‐articular TGCT with bone normal, Subtype 2b: diffuse intra‐articular TGCT with bone destruction. Type 3: diffuse TGCT across the knee joint capsule. The mean follow‐up time for the 78 patients was 59.6 months. Twenty‐one patients were in Subtype 1a, four were Subtype 1b, 38 were Subtype 2a, seven were Subtype 2b, and eight were Type 3. Oncological results and surgical complications differed significantly (P = 0.000, P = 0.000). The mean Musculoskeletal Tumor Society functional scores differed significantly at 27.8 for Type 1 patients, 22.9 for Type 2 patients, and 17.0 for Type 3 patients (P = 0.000). Conclusions This clinical classification can be easily used to evaluate TGCT of all knees prior to surgery or other treatments and can help determine surgical options.https://doi.org/10.1111/os.13179Clinical classificationKneePigmented villonodular synovitisSurgeryTenosynovial giant cell tumor
spellingShingle Kai Zheng
Xiu‐chun Yu
Yong‐cheng Hu
Ming Xu
Jing‐yu Zhang
A New Simple and Practical Clinical Classification for Tenosynovial Giant Cell Tumors of the Knee
Orthopaedic Surgery
Clinical classification
Knee
Pigmented villonodular synovitis
Surgery
Tenosynovial giant cell tumor
title A New Simple and Practical Clinical Classification for Tenosynovial Giant Cell Tumors of the Knee
title_full A New Simple and Practical Clinical Classification for Tenosynovial Giant Cell Tumors of the Knee
title_fullStr A New Simple and Practical Clinical Classification for Tenosynovial Giant Cell Tumors of the Knee
title_full_unstemmed A New Simple and Practical Clinical Classification for Tenosynovial Giant Cell Tumors of the Knee
title_short A New Simple and Practical Clinical Classification for Tenosynovial Giant Cell Tumors of the Knee
title_sort new simple and practical clinical classification for tenosynovial giant cell tumors of the knee
topic Clinical classification
Knee
Pigmented villonodular synovitis
Surgery
Tenosynovial giant cell tumor
url https://doi.org/10.1111/os.13179
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