# Long Term Follow-Up of Post Neck Pain Patients Accompanying Ossification of Posterior Longitudinal Ligament Treated With Integrated Complementary and Alternative Medicine: Observational Study

> **NCT04446221** · — · COMPLETED · sponsor: **Jaseng Medical Foundation** · enrollment: 78 (actual)

## Conditions studied

- OPLL
- Medicine, Korean Traditional

## Interventions

- **OTHER:** phone survey

## Key facts

- **NCT ID:** NCT04446221
- **Lead sponsor:** Jaseng Medical Foundation
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2020-06-12
- **Primary completion:** 2020-08-31
- **Final completion:** 2021-12-31
- **Target enrollment:** 78 (ACTUAL)
- **Last updated:** 2022-02-08


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04446221

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04446221, "Long Term Follow-Up of Post Neck Pain Patients Accompanying Ossification of Posterior Longitudinal Ligament Treated With Integrated Complementary and Alternative Medicine: Observational Study". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04446221. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*