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Study of Subtalar Arthrodesis Using AlloStem® Versus Autologous Bone Graft

This study is currently recruiting participants. (see Contacts and Locations)
Verified October 2013 by AlloSource
Information provided by (Responsible Party):
AlloSource Identifier:
First received: August 8, 2011
Last updated: October 17, 2013
Last verified: October 2013

The purpose of this clinical trial is to evaluate the outcome of implanting AlloStem® graft with appropriate rigid internal fixation hardware as an alternative to autograft bone graft with rigid fixation in subtalar arthrodesis procedures. The primary objective of this clinical trial is to compare the overall fusion rate of the investigational to the control treatment. Fusion will be determined by clinical findings, radiographs and computed tomography (CT) of the subtalar joint 24 weeks (6 months) after the trial surgery.

Condition Intervention
Degenerative Osteoarthritis
Post-traumatic; Arthrosis
Rheumatoid Arthritis and Other Inflammatory Polyarthropathies
Rheumatoid Arthritis of Subtalar Joint
Procedure: Subtalar Arthrodesis

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Study of Subtalar Arthrodesis Using AlloStem® Versus Autologous Bone Graft

Resource links provided by NLM:

Further study details as provided by AlloSource:

Primary Outcome Measures:
  • Fusion Rate (%)(as determined by CT assessment) [ Time Frame: 6 months post-op ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Radiographic outcome assessments [ Time Frame: Pre-operatively, 6 weeks, 3, 6, 12 and 24 months ] [ Designated as safety issue: No ]
  • Functional outcome measurements [ Time Frame: Pre-operatively, 6 weeks, 3, 6, 12 and 24 months ] [ Designated as safety issue: No ]
    FFI-R, SF-12

  • Functional outcome measurements [ Time Frame: Pre-operatively, 3, 6, 12 and 24 months ] [ Designated as safety issue: No ]

Estimated Enrollment: 136
Study Start Date: June 2010
Estimated Study Completion Date: May 2016
Estimated Primary Completion Date: May 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: AlloStem Live Cellular Allograft Procedure: Subtalar Arthrodesis
Active Comparator: Control: Autologous Bone Marrow Aspirate Procedure: Subtalar Arthrodesis


Ages Eligible for Study:   18 Years to 80 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Must be diagnosed with degenerative osteoarthritis, post-traumatic arthritis, inflammatory arthritis (ie: rheumatoid arthritis) or other conditions of the hindfoot requiring subtalar arthrodesis.
  2. Patients must be able to attend follow-up examinations for the duration of the trial.
  3. The patient is at least 18 years of age and skeletally mature, or less than 80 years of age at the time of surgery.
  4. Is willing and able to comply with the clinical trial plan and able to understand and sign the Patient Informed Consent Form.

Exclusion Criteria:

  1. Younger than 18 years old or older than 80 years old.
  2. Has a condition that prevents ambulation or completion of any of the trial measurements.
  3. Requires fusion of additional hindfoot or ankle joints simultaneously (i.e. a pantalar, tibiotalocalcaneal or triple arthrodesis). Concomitant midfoot or forefoot procedures, such as osteotomies, tendon or metatarsal procedures are not exclusionary.
  4. Has treatment planned for the arthrodesis which does not require the use of screws.
  5. Has any active infection of the hindfoot, a systemic infection or bacteremia.
  6. Has received any treatment within the past 12 months which may interfere with bone metabolism [bisphosphonates (Fosamax, Actonel, Boniva, Reclast) and calcitonin (Miacalcin)].
  7. Is scheduled to have any surgical procedure on the contralateral foot within 6 weeks before or after the study procedure.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01413061

United States, Maryland
Institute for Foot and Ankle Reconstruction at Mercy Recruiting
Baltimore, Maryland, United States, 21202
Contact: Catherine Roocker    410-332-9035   
United States, Michigan
Orthopaedic Associates of Michigan Recruiting
Grand Rapids, Michigan, United States, 49525
Contact: Michelle Padley    616-459-7101 ext 797   
United States, Minnesota
Minnesota Orthopedic Sports Medicine Institute (MOSMI) Recruiting
Edina, Minnesota, United States, 55435
Contact: Becky Stone    952-456-7136   
United States, Pennsylvania
Penn State Milton S. Hershey Medical Center Recruiting
Hershey, Pennsylvania, United States, 17033
Contact: Susan Hassenbein    717-531-0003 ext 284214   
United States, Tennessee
Campbell Clinic Recruiting
Germantown, Tennessee, United States, 38138
Contact: Wadie Tank    901-759-5413   
Sponsors and Collaborators
Principal Investigator: Christiaan Coetzee, MD Minnesota Orthopedic Sports Medicine Institute (MOSMI)
Principal Investigator: Mark Myerson, MD Institute for Foot and Ankle Reconstruction at Mercy
Principal Investigator: John Anderson, MD Orthopaedic Associates of Michigan
Principal Investigator: Paul Juliano, MD Milton S. Hershey Medical Center
Principal Investigator: Andrew Murphy, MD Campbell Clinic
  More Information

No publications provided

Responsible Party: AlloSource Identifier: NCT01413061     History of Changes
Other Study ID Numbers: AlloSource Subtalar Fusion RCT
Study First Received: August 8, 2011
Last Updated: October 17, 2013
Health Authority: United States: Institutional Review Board

Keywords provided by AlloSource:
Other Hindfoot Conditions requiring Subtalar Arthrodesis
Post-traumatic Arthritis

Additional relevant MeSH terms:
Arthritis, Rheumatoid
Autoimmune Diseases
Connective Tissue Diseases
Immune System Diseases
Joint Diseases
Musculoskeletal Diseases
Rheumatic Diseases processed this record on November 23, 2014