# Vanguard Knee Anterior Stabilized Versus Posterior Stabilized Bearing Study

> **NCT01308515** · NA · WITHDRAWN · sponsor: **Zimmer Biomet**

## Conditions studied

- Osteoarthritis
- Degenerative Arthritis

## Interventions

- **DEVICE:** Vanguard Knee System with AS Bearing
- **DEVICE:** Vanguard Knee System with PS Bearing

## Key facts

- **NCT ID:** NCT01308515
- **Lead sponsor:** Zimmer Biomet
- **Sponsor class:** INDUSTRY
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2010-09
- **Primary completion:** 2010-09
- **Final completion:** 2010-09
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Could not find interested researchers/clinicians to complete study protocol.
- **Last updated:** 2017-06-21


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01308515

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01308515, "Vanguard Knee Anterior Stabilized Versus Posterior Stabilized Bearing Study". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT01308515. Licensed CC0.

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