Rule-derived preoperative inflammatory-lymphocyte recovery phenotype and pathological response in resected osteosarcoma: a retrospective cohort study - Report - MDSpire
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Preoperative Inflammatory-Lymphocyte Recovery Profile and Its Association with Pathological Outcomes in Resected Osteosarcoma: A Retrospective Analysis

  • By

  • Yang Liu

  • Hua Huang

  • Ke Yang

  • Daxin Gao

  • Tian Hao

  • Haiyu Zhou

  • Yonghong Huang

  • September 7, 2026

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Clinical Report: Preoperative Inflammatory-Lymphocyte Recovery Profile in Osteosarcoma

Overview

This study investigates the association between preoperative inflammatory-lymphocyte recovery phenotypes and pathological outcomes in osteosarcoma patients post-neoadjuvant chemotherapy. A significant correlation was found between persistent recovery failure and poor pathological response.

Background

Osteosarcoma is the most common primary malignant bone tumor in children and adolescents, and its treatment relies heavily on neoadjuvant chemotherapy followed by surgery. Understanding the pathological response to chemotherapy is crucial, as it serves as a significant prognostic factor for patient outcomes. Identifying early markers of treatment response could improve management strategies and patient prognostication.

Data Highlights

Recovery PhenotypePatientsPoor Pathological Response (%)
Favorable Recovery6537.2
Intermediate Recovery45Not specified
Persistent Recovery Failure5275.7

Key Findings

  • 54.3% of patients demonstrated poor pathological response post-chemotherapy.
  • Persistent recovery failure was associated with a significantly higher risk of poor pathological response (Firth OR, 5.72; P<0.001).
  • The risk difference in poor response between favorable recovery and persistent failure was 38.6 percentage points.
  • The phenotype model had an AUC of 0.641, while the continuous T3 score had an AUC of 0.665.
  • Event-free survival and pulmonary metastasis were explored as additional associations.

Clinical Implications

The findings indicate that preoperative inflammatory-lymphocyte recovery profiles are associated with pathological outcomes in osteosarcoma.

Conclusion

The study establishes a significant link between inflammatory-lymphocyte recovery phenotypes and pathological outcomes in osteosarcoma.

Related Resources & Content

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  8. EURAMOS-1 Trial Results
  9. https://discovery.ucl.ac.uk/id/eprint/10142480/1/ESMO%20EURACAN%20GENTURIS%20PaedCan-BONE-Manuscript-Revised-Clean-TablesFiguresSupplementary.pdf
  10. https://discovery.ucl.ac.uk/1432374/1/JCO-2015-Bielack-JCO.2014.60.0734.pdf
  11. Prognostic value of the immune-inflammatory indices in osteosarcoma: a systematic review and meta-analysis - PubMed
  12. Significance of the neutrophil-to-lymphocyte ratio in predicting the response to neoadjuvant chemotherapy in extremity osteosarcoma: a multicentre retrospective study - PMC
  13. Development and validation of a biopsy-based model using tumor-associated neutrophils to predict neoadjuvant chemotherapy response in osteosarcoma: a large single-center retrospective cohort study - PMC

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