Postoperative Functional Assessment in Patients with Tumors Around the Knee Treated with Endoprosthetic Reconstruction: A Multicenter Retrospective Cohort Study

Objectives The restoration of as much normal function as possible has become an important goal following the endoprosthetic reconstruction. The objective of this study was to assess the functional outcome after endoprosthetic reconstruction for tumors around the knee and to explore prognostic factor...

Full description

Bibliographic Details
Main Authors: Yun-long Zhao MD, Hao-ran Zhang MD, Jing-yu Zhang MD, Yong-cheng Hu MD, PhD
Format: Article
Language:English
Published: SAGE Publishing 2023-06-01
Series:Technology in Cancer Research & Treatment
Online Access:https://doi.org/10.1177/15330338231181283
_version_ 1797802508043681792
author Yun-long Zhao MD
Hao-ran Zhang MD
Jing-yu Zhang MD
Yong-cheng Hu MD, PhD
author_facet Yun-long Zhao MD
Hao-ran Zhang MD
Jing-yu Zhang MD
Yong-cheng Hu MD, PhD
author_sort Yun-long Zhao MD
collection DOAJ
description Objectives The restoration of as much normal function as possible has become an important goal following the endoprosthetic reconstruction. The objective of this study was to assess the functional outcome after endoprosthetic reconstruction for tumors around the knee and to explore prognostic factors of functional outcome. Methods We retrospectively collected data on patients who underwent tumor prosthetic replacements consecutively. Musculoskeletal Tumour Society score and Toronto Extremity Salvage Score were used to assess the functional outcome at 1, 3, 6, 12, and 24 months after surgery. The logistic model was used to select factors that had potential predictive value for postoperative function. Potential prognostic factors included age, gender, tumor site, type of tumor, length of bone resection, type of prosthesis, length of prosthetic stem, chemotherapy, pathological fracture, and body mass index. Results At the 24 months after surgery, the mean musculoskeletal tumor society (MSTS) score was 81.4% and the mean Toronto extremity salvage score (TESS) was 83.6%. At the last follow-up, 68% of patients and 73% of patients received perfect or good MSTS score and TESS score, respectively. The multivariate analysis according to ordered-logit model showed that age < 35 years, distal femoral prosthesis, and length of bone resection < 14 cm were independent prognostic factors of better functional outcome. Conclusions Endoprosthetic reconstruction may provide good functional results for most patients. Younger patients with distal femoral prosthesis and shorter resection of bone (on the premise of complete resection of tumor) are more likely to obtain satisfactory functional results after surgery.
first_indexed 2024-03-13T05:06:44Z
format Article
id doaj.art-4f3b88161775470aab2938a6ff6022cf
institution Directory Open Access Journal
issn 1533-0338
language English
last_indexed 2024-03-13T05:06:44Z
publishDate 2023-06-01
publisher SAGE Publishing
record_format Article
series Technology in Cancer Research & Treatment
spelling doaj.art-4f3b88161775470aab2938a6ff6022cf2023-06-16T08:03:33ZengSAGE PublishingTechnology in Cancer Research & Treatment1533-03382023-06-012210.1177/15330338231181283Postoperative Functional Assessment in Patients with Tumors Around the Knee Treated with Endoprosthetic Reconstruction: A Multicenter Retrospective Cohort StudyYun-long Zhao MD0Hao-ran Zhang MD1Jing-yu Zhang MD2Yong-cheng Hu MD, PhD3 Department of Bone Tumor, , Tianjin, China Department of Orthopedic Surgery, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China Department of Bone Tumor, , Tianjin, China Department of Bone Tumor, , Tianjin, ChinaObjectives The restoration of as much normal function as possible has become an important goal following the endoprosthetic reconstruction. The objective of this study was to assess the functional outcome after endoprosthetic reconstruction for tumors around the knee and to explore prognostic factors of functional outcome. Methods We retrospectively collected data on patients who underwent tumor prosthetic replacements consecutively. Musculoskeletal Tumour Society score and Toronto Extremity Salvage Score were used to assess the functional outcome at 1, 3, 6, 12, and 24 months after surgery. The logistic model was used to select factors that had potential predictive value for postoperative function. Potential prognostic factors included age, gender, tumor site, type of tumor, length of bone resection, type of prosthesis, length of prosthetic stem, chemotherapy, pathological fracture, and body mass index. Results At the 24 months after surgery, the mean musculoskeletal tumor society (MSTS) score was 81.4% and the mean Toronto extremity salvage score (TESS) was 83.6%. At the last follow-up, 68% of patients and 73% of patients received perfect or good MSTS score and TESS score, respectively. The multivariate analysis according to ordered-logit model showed that age < 35 years, distal femoral prosthesis, and length of bone resection < 14 cm were independent prognostic factors of better functional outcome. Conclusions Endoprosthetic reconstruction may provide good functional results for most patients. Younger patients with distal femoral prosthesis and shorter resection of bone (on the premise of complete resection of tumor) are more likely to obtain satisfactory functional results after surgery.https://doi.org/10.1177/15330338231181283
spellingShingle Yun-long Zhao MD
Hao-ran Zhang MD
Jing-yu Zhang MD
Yong-cheng Hu MD, PhD
Postoperative Functional Assessment in Patients with Tumors Around the Knee Treated with Endoprosthetic Reconstruction: A Multicenter Retrospective Cohort Study
Technology in Cancer Research & Treatment
title Postoperative Functional Assessment in Patients with Tumors Around the Knee Treated with Endoprosthetic Reconstruction: A Multicenter Retrospective Cohort Study
title_full Postoperative Functional Assessment in Patients with Tumors Around the Knee Treated with Endoprosthetic Reconstruction: A Multicenter Retrospective Cohort Study
title_fullStr Postoperative Functional Assessment in Patients with Tumors Around the Knee Treated with Endoprosthetic Reconstruction: A Multicenter Retrospective Cohort Study
title_full_unstemmed Postoperative Functional Assessment in Patients with Tumors Around the Knee Treated with Endoprosthetic Reconstruction: A Multicenter Retrospective Cohort Study
title_short Postoperative Functional Assessment in Patients with Tumors Around the Knee Treated with Endoprosthetic Reconstruction: A Multicenter Retrospective Cohort Study
title_sort postoperative functional assessment in patients with tumors around the knee treated with endoprosthetic reconstruction a multicenter retrospective cohort study
url https://doi.org/10.1177/15330338231181283
work_keys_str_mv AT yunlongzhaomd postoperativefunctionalassessmentinpatientswithtumorsaroundthekneetreatedwithendoprostheticreconstructionamulticenterretrospectivecohortstudy
AT haoranzhangmd postoperativefunctionalassessmentinpatientswithtumorsaroundthekneetreatedwithendoprostheticreconstructionamulticenterretrospectivecohortstudy
AT jingyuzhangmd postoperativefunctionalassessmentinpatientswithtumorsaroundthekneetreatedwithendoprostheticreconstructionamulticenterretrospectivecohortstudy
AT yongchenghumdphd postoperativefunctionalassessmentinpatientswithtumorsaroundthekneetreatedwithendoprostheticreconstructionamulticenterretrospectivecohortstudy