# Safety and Effectiveness of Extended Circumferential Decompression for Thoracic Ossification of Posterior Longitudinal Ligament

> **NCT04910737** · — · COMPLETED · sponsor: **Second Affiliated Hospital, School of Medicine, Zhejiang University** · enrollment: 30 (actual)

## Conditions studied

- Indications and Effectiveness for Extended Posterior Circumferential Decompression

## Interventions

- **PROCEDURE:** extended posterior circumferential decompressive surgery

## Key facts

- **NCT ID:** NCT04910737
- **Lead sponsor:** Second Affiliated Hospital, School of Medicine, Zhejiang University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2020-06-08
- **Primary completion:** 2021-03-01
- **Final completion:** 2021-04-01
- **Target enrollment:** 30 (ACTUAL)
- **Last updated:** 2021-06-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04910737

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04910737, "Safety and Effectiveness of Extended Circumferential Decompression for Thoracic Ossification of Posterior Longitudinal Ligament". Retrieved via AI Analytics 2026-07-16 from https://api.ai-analytics.org/clinical/NCT04910737. Licensed CC0.

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