CoChat
Sign Up
Cited by 2,393Sarcoma Diagnosis and TreatmentBone Tumor Diagnosis and TreatmentsOvarian cancer diagnosis and treatment

The DOI matches its Crossref record; 61 of the 61 references it cites were found in a registry or an index.

Prognostic Factors in High-Grade Osteosarcoma of the Extremities or Trunk: An Analysis of 1,702 Patients Treated on Neoadjuvant Cooperative Osteosarcoma Study Group Protocols

Bielack, Stefan S., Kempf-Bielack, Beate, Delling, Günter, Exner, G. Ulrich, Flege, Silke, Helmke, Knut, Kotz, Rainer, Salzer-Kuntschik, Mechthild, Werner, Matthias, Winkelmann, Winfried, Zoubek, Andreas, Jürgens, Heribert, Winkler, Kurt·2002·Journal of Clinical Oncology
DOI 10.1200/jco.2002.20.3.776
Open this paper in CoChat — free account

Abstract

PURPOSE: To define prognostic factors for response and long-term outcome for a wide spectrum of osteosarcomas, extending well beyond those of the typical young patient with seemingly localized extremity disease. PATIENTS AND METHODS: A total of 1,702 consecutive newly diagnosed patients with high-grade osteosarcoma of the trunk or limbs registered into the neoadjuvant studies of the Cooperative Osteosarcoma Study Group before July 1998 were entered into an analysis of demographic, tumor-related, and treatment-related variables, response, and survival. The intended therapeutic strategy included preoperative and postoperative chemotherapy with multiple agents as well as surgery of all operable lesions. RESULTS: Axial tumor site, male sex, and a long history of symptoms were associated with poor response to chemotherapy in univariate and multivariate analysis. Actuarial 10-year overall and event-free survival rates were 59.8% and 48.9%. Among the variables assessable at diagnosis, patient age (actuarial 10-year survival ≥ 40, 41.6%; < 40, 60.2%; P = .012), tumor site (axial, 29.2%; limb, 61.7%; P < .0001), and primary metastases (yes, 26.7%; no, 64.4%; P < .0001), and for extremity osteosarcomas, also size (≥ one third, 52.5%; < one third, 66.7%; P < .0001) and location within the limb (proximal, 49.3%; other, 63.9%; P < .0001), had significant influence on outcome. Two additional important prognostic factors were treatment related: response to chemotherapy (poor, 47.2%; good, 73.4%; P < .0001) and the extent of surgery (incomplete, 14.6%; macroscopically complete, 64.8%; P < .0001). All factors except age maintained their significance in multivariate testing, with surgical remission and histologic response emerging as the key prognostic factors. CONCLUSION: Tumor site and size, primary metastases, response to chemotherapy, and surgical remission are of independent prognostic value in osteosarcoma.

Overview

Integrity signals

Registry

Crossref · 10.1200/jco.2002.20.3.776

Cites

61 of 61 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Verification

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Citations

Cites

Flagged first, then by citations

Show all 61 references

Cited by

Sorted by citations

See all 2,393

Related

Metadata

Authors
Bielack, S. S., Kempf-Bielack, B., Delling, G., Exner, G. U., Flege, S., Helmke, K., Kotz, R., Salzer-Kuntschik, M., Werner, M., Winkelmann, W., Zoubek, A., Jürgens, H., & Winkler, K.
Affiliations
University of Münster (DE)
Corresponding author
Bielack, Stefan S.
ORCID
Bielack, Stefan S.
Venue
Journal of Clinical Oncology
Publisher
American Society of Clinical Oncology (ASCO)
Published
2002-02-01
Volume
20
Issue
3
Pages
776-790
ISSN
  • 0732-183X (ISSN-L)
  • 1527-7755
DOI
10.1200/jco.2002.20.3.776
OpenAlex
W2148077417
Cited by
2,393
References
61
Citations by year
2026: 85 · 2025: 95 · 2024: 112 · 2023: 162 · 2022: 159 · 2021: 167 · 2020: 166 · 2019: 121 · 2018: 114 · 2017: 106 · 2016: 122 · 2015: 139 · 2014: 124 · 2013: 106 · 2012: 75
FWCI
34.99
Type
journal article
Language
en
Update notices
new_edition (2023-09-15)
Open access
closed
Locations
  • Journal of Clinical Oncology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Oncology › Sarcoma Diagnosis and Treatment
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone Tumor Diagnosis and Treatments
  • Health Sciences › Medicine › Oncology › Ovarian cancer diagnosis and treatment
Keywords
high-grade osteosarcoma, prognostic factors, neoadjuvant chemotherapy, limb-sparing surgery, tumor location, tumor size, chemotherapy response, surgical remission, event-free survival, overall survival, histological response, patient age, sex differences
MeSH terms
Adolescent, Adult, Aged, Bone Neoplasms, Child, Child, Preschool, Combined Modality Therapy, Female, Humans, Male, Middle Aged, Neoplasm Metastasis, Prognosis, Osteosarcoma, Survival Rate, Multivariate Analysis, Chemotherapy, Adjuvant

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review