NIH-funded research R21 grant

Exploring how flexible spinal implants affect healing in the spine

Official title: Investigating the effect of mechanical compliance of metamaterial interbody cages on spinal fusion progress in vivo

Funded at University of Pittsburgh at Pittsburgh · NIH-11005400 · Data updated 2026-11-12

This study is looking at new flexible spinal implants to see how they help with healing after surgery, which could lead to better recovery for people with back problems.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionUniversity of Pittsburgh at Pittsburgh
NIH-funded
Lab location1 site (Pittsburgh, United States)
Project startJanuary 2, 2024
Project endDecember 31, 2026
Funding year2025
Award (this year)$227,973
NIH project number5R21EB034457-02
Project IDNIH-11005400 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are adults over 21 years old who require spinal fusion surgery due to conditions like degenerative disc disease or spinal instability.

Less likely to help

Patients with spinal conditions that do not require surgical intervention or those who are not candidates for spinal fusion surgery may not benefit from this research.

What this research studies

This research investigates how the flexibility of new spinal implants, known as metamaterial interbody cages, influences the healing process of spinal fusion. By creating these innovative implants with adjustable stiffness and porosity, the study aims to understand their impact on load-sharing and bone formation during movement. The research will be conducted using animal models to assess how these implants perform in real-life conditions, potentially leading to improved surgical outcomes for patients with spinal issues.

Why it matters

Potential benefit: If successful, this research could lead to more effective spinal implants that enhance healing and reduce recovery time for patients undergoing spinal fusion surgery.

How similar studies have gone: While the concept of using flexible implants is gaining interest, this specific approach with metamaterial cages is novel and has not been extensively tested in previous research.

Where this research is happening

  • University of Pittsburgh at Pittsburgh
    Pittsburgh, United States
    Active

Researchers

  • Principal investigator: Alavi, Amir — University of Pittsburgh at Pittsburgh
  • Study coordinator: Alavi, Amir

Related research

Other NIH-funded projects on the same topics.

  • Wireless metacages that measure spine fusion progress in real time

    A tiny, wireless, self-powered cage grown into your spine could tell doctors how well your spinal fusion is progressing, without bulky hardware.

    NIH research University of Pittsburgh at Pittsburgh · Pittsburgh, United States · NIH-11412539

  • Small molecule block of noggin to improve spinal fusion

    A promising approach to help spine fusion uses a tiny molecule to block noggin, allowing safer, lower doses of bone-building signals at the fusion site.

    NIH research Emory University · Atlanta, United States · NIH-11367538

  • Flexible 3D‑printed spine cages to improve spinal fusion

    This project tests whether softer, 3D‑printed spinal cages help bone fuse faster and hold up better for adults who need interbody spinal fusion.

    NIH research University of Pittsburgh at Pittsburgh · Pittsburgh, United States · NIH-11259437

  • A New Medicine to Help Spinal Bones Fuse

    This research explores a new way to help spinal bones grow together by using a special medicine to reduce side effects often seen with current bone-healing treatments.

    NIH research Emory University · Atlanta, United States · NIH-11163278

  • Blocking noggin to enhance spinal fusion

    This study is exploring a new way to help your spine heal better after surgery by using a special material that helps encourage bone growth while reducing side effects, and it's showing good results in early tests with rabbits.

    NIH research Emory University · Atlanta, United States · NIH-10847502

  • Understanding opioid misuse in adolescents after spinal surgery

    This study is looking at how teens aged 12-18 handle pain after spinal fusion surgery and whether they might misuse opioids afterward, so we can find better ways to help them manage their pain safely.

    NIH research Seattle Children's Hospital · Seattle, United States · NIH-10264717

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.