Research Clinical Trials

The Center Orthopedic & Neurosurgical Care & Research is committed to ongoing research and developments in the fields of orthopedic, neurosurgical, and rehabilitation care. The physicians at The Center are currently involved in the use and/or development of cutting-edge technology and procedures. In order to advance medical knowledge and practice, The Center participates in a variety of device registries and device clinical trials. In addition, our own physicians often have novel ideas about new treatments that may improve outcomes for our patients. The Research Department facilitates the development of these ideas into research projects by coordinating studies and identifying potential funding sources. Research findings are reported through publications and presentations to other physicians, health care professionals, and patients with the goal of improving patient care.

Clinical Trials

The National Institutes of Health (NIH) defines a clinical trial as research study in human volunteers to answer specific health questions. At The Center, the majority of our studies are interventional as we test new treatments and devices under controlled environments to determine if the intervention is safe and effective. Participants in clinical trials often gain access to new treatments before they are widely available and help others by advancing medical research. If you are interested in participating in a research study or curious about The Center’s clinical trials, below is a list of procedures and conditions that we study at The Center: Title Principal Investigator

Clinical Research Study for Patients with Frozen Shoulder

Principal Investigators: James Verheyden, M.D., Tim Bollom, M.D., James Nelson, M.D.

Ascension MCP Finger Implant Post-Approval Study

PyroCarbon Metacarpophalangeal Joint Prosthesis. Clinical Study Protocol #CP-MCP-002 Principal Investigator: James Verheyden, M.D.


Stenting and Angioplasty with Protection In Patients at High-risk for Endarterectomy SAPPHIRE WW – P06-3603 Principal Investigator: Raymond Tien, M.D.


Vascular Reconstruction Device and Delivery System Principal Investigator: Raymond Tien, M.D.


Neuroform Microdelivery Stent System, Humanitarian Device Exemption (HDE) Principal Investigator: Raymond Tien, M.D.


HD500 Liquid Embolic System Principal Investigator: Raymond Tien, M.D.

Wingspan Stent System

with Gateway PTA Balloon Catheter, HUD #03-0101 Principal Investigator: Raymond Tien, M.D.

Jump test

Comparison of Single leg Squat Test to Jump Test as a Predictor for Risk of Lower Extremity Injury in Older Children and Adolescents Principal Investigator: Viviane Ugalde, M.D.

Contact our research department for more information: (541) 330-8653 or Email us here.