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Comparing Efficacy of Bone Marrow Aspirate Concentrate (BMAC) Combined With Allograft in Treatment of Calcaneus Fractures (BMAC)

Primary Purpose

Fractures, Bone

Status

Withdrawn

Phase

Not Applicable

Locations

Study Type

Interventional

Intervention

Autograft

Allograft only

Allograft combined with BMAC

About this trial

This is an interventional treatment trial for Fractures, Bone focused on measuring calcaneus fracture, bone graft, bone marrow aspirate, stem cells

Eligibility Criteria

18 Years - 75 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

Closed displaced intra-articular fracture without any evidence of nerve or blood vessel injury, the fractures belonged to Sanders type III according to Sanders classification and amenable to open reduction internal fixation
Life expectancy of at least 1 year
Patient is willing to provide informed consent, is geographically stable and able to comply with the required follow up visits, testing schedule and medication regimen
Adequate soft tissue coverage at the fracture site through primary closure.
Unilateral or bilateral calcaneal fractures.

Exclusion Criteria:

Pregnant or breastfeeding women or planning on becoming pregnant during the investigational period
Patient is currently participating in an investigational drug or other device study or previously enrolled in this study.
Uncontrolled diabetes mellitus (hemoglobin A1c levels > 10%)
A current endocrine or metabolic disorder known to affect osteogenesis
Currently has untreated malignant neoplasm(s), or is currently undergoing radiation therapy or chemotherapy.
Inadequate neurovascular status in the involved limb that may jeopardize healing.
Patients who have a preexisting calcaneus deformity that cannot accommodate a reduction or a previous history of osteomyelitis in the index limb.
Other ipsilateral lower extremity fracture(s) if, in the opinion of the investigator, the treatment and/or rehabilitation of such fracture(s) will substantially interfere with the treatment, rehabilitation or other requirements outlined in this protocol.

Sites / Locations

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Active Comparator

Other

Arm Label

Autograft

Allograft only

Allograft combined with BMAC

Arm Description

Following definitive fracture reduction a bone defect often remained in the substance of the calcaneus beneath the reduced posterior facet. In this group an autograft will be used to fill the void. For the purpose of autologous grafting, cancellous strips of bone will be harvested from the posterior superior iliac crest or proximal tibia. It shall be applied wherever bone loss exists as a result of the incident fracture or subsequent bone debridement(s). This will be the control arm.

Following definitive fracture reduction a bone defect often remained in the substance of the calcaneus beneath the reduced posterior facet. In this group a cryopreserved allograft bone (Musculoskeletal Tissue Foundation, New Jersey, NJ) will be used to fill the void. It shall be applied wherever bone loss exists as a result of the incident fracture or subsequent bone debridement(s).

Following definitive fracture reduction a bone defect often remained in the substance of the calcaneus beneath the reduced posterior facet. In this group a cryopreserved allograft bone (Musculoskeletal Tissue Foundation, New Jersey, NJ) combined with BMAC will be used to fill the void. For the purpose of BMAC preparation, bone marrow will be collected from iliac crest or proximal tibia. It shall be applied wherever bone loss exists as a result of the incident fracture or subsequent bone debridement(s).

Outcomes

Primary Outcome Measures

Percentage of participant with satisfactory bone healing using American Orthopedics Foot and Ankle Society (AOFAS) ankle-hindfoot scoring system

The AOFAS ankle-hindfoot scoring system is the most commonly used instruments for measuring the outcome of treatment in patients who sustained a complex ankle or hindfoot injury. It combines a clinician-reported and a patient-reported part. The scoring system range is from 0 to 100 with 100 being the best outcome score.

Percentage of participant with satisfactory bone healing using American Orthopedics Foot and Ankle Society (AOFAS) ankle-hindfoot scoring system

Percentage of patient with satisfactory post treatment pain with Visual Analogue Scale (VAS)

The visual analogue scale or visual analog scale is a psychometric response scale which can be used in questionnaires. It is a measurement instrument for subjective characteristics or attitudes that cannot be directly measured. Scale ranges from 0 to 10 with 10 being worse.

Percentage of patient with satisfactory post treatment pain with Visual Analogue Scale (VAS)

Secondary Outcome Measures

Full Information

NCT ID

NCT05017961

First Posted

August 17, 2021

Last Updated

July 27, 2023

Sponsor

University of Alabama at Birmingham

1. Study Identification

Unique Protocol Identification Number

NCT05017961

Brief Title

Comparing Efficacy of Bone Marrow Aspirate Concentrate (BMAC) Combined With Allograft in Treatment of Calcaneus Fractures

Acronym

BMAC

Official Title

Randomized Prospective Cohort Study Comparing Efficacy of Bone Marrow Aspirate Concentrate Combined With Cryopreserve Allograft Bone in the Treatment of Intra-Articular Calcaneal Fractures

Study Type

Interventional

2. Study Status

Record Verification Date

July 2023

Overall Recruitment Status

Withdrawn

Why Stopped

Unfortunately this study didn't receive funding.

Study Start Date

July 10, 2019 (Actual)

Primary Completion Date

July 10, 2019 (Actual)

Study Completion Date

July 10, 2019 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title

Principal Investigator

Name of the Sponsor

University of Alabama at Birmingham

4. Oversight

Studies a U.S. FDA-regulated Drug Product

Studies a U.S. FDA-regulated Device Product

Yes

Product Manufactured in and Exported from the U.S.

Data Monitoring Committee

5. Study Description

Brief Summary

The purpose of this study is to evaluate the efficacy of BMAC when used in conjunction with viable allograft bone for treating displaced intra-articular calcaneal fractures, in terms of rate of allograft incorporation into the host tissue, bone healing, and functional outcome.

Detailed Description

The study group will consist of patients with intra-articular calcaneal fractures admitted to our academic level I trauma center that underwent open reduction internal fixation. Inclusion criteria will be patients with a closed displaced intra-articular fracture Sanders type III without any evidence of neurovascular injury. Patients will be randomly divided into three groups according to the plan of management: autograft alone, viable allograft combined with BMAC, or viable allograft alone. Radiographic imaging and three-dimensional standing computed tomography will be used to assess the articular surface, Bohler's angle, the crucial angle of Gissane, and the height, width and length of the calcaneus. The American Orthopedic Foot and Ankle Society (AOFAS) ankle-hind-foot scoring system and visual analog scale (VAS) will be used to post-operative evaluation of the patients.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study

Fractures, Bone

Keywords

calcaneus fracture, bone graft, bone marrow aspirate, stem cells

7. Study Design

Primary Purpose

Treatment

Study Phase

Not Applicable

Interventional Study Model

Parallel Assignment

Masking

None (Open Label)

Allocation

Randomized

Enrollment

0 (Actual)

8. Arms, Groups, and Interventions

Arm Title

Autograft

Arm Type

Active Comparator

Arm Description

Arm Title

Allograft only

Arm Type

Other

Arm Description

Arm Title

Allograft combined with BMAC

Arm Type

Other

Arm Description

Following definitive fracture reduction a bone defect often remained in the substance of the calcaneus beneath the reduced posterior facet. In this group a cryopreserved allograft bone (Musculoskeletal Tissue Foundation, New Jersey, NJ) combined with BMAC will be used to fill the void. For the purpose of BMAC preparation, bone marrow will be collected from iliac crest or proximal tibia. It shall be applied wherever bone loss exists as a result of the incident fracture or subsequent bone debridement(s).

Intervention Type

Device

Intervention Name(s)

Autograft

Intervention Description

An autograft bone will be harvested from proximal tibia or posterior superior iliac crest. First the bony landmarks of the posterior iliac crest or proximal tibia are palpated. The skin is then injected down to and including the periosteum with 1% lidocaine without epinephrine. After 1 cm skin incision and gentle dissection of subcutaneous soft tissue, the bone harvesting device inserted through the skin and subcutaneous tissues until it reaches the cortical bone. Then, manual pressure is used to position the bone harvesting device against the dense cortical bone. A battery-powered power instrument is then will be used to drill the harvesting device into the medullary cavity. After the harvesting device insertion the cancellous strips of bone will be harvested and applied to the fracture site gap.At the conclusion of autograft bone harvesting procedure, the wound will be closed with 3-0 Nylon and a sterile dressing will be applied to the harvest site.

Intervention Type

Device

Intervention Name(s)

Allograft only

Intervention Description

The jar containing allograft tissue and cryopreservation solution will be placed in a sterile basin containing a warm (35°C to 39°C; 95°F to 102.2°F) sterile irrigant (Normal saline or 5% Dextrose in Lactated Ringer's Solution). The jar containing the allograft will remain in this solution until the contents of the jar flows freely upon inversion. The jar will be removed from the warm solution once free-flowing. Sterile gauze or the optional strainer will be used to decant the cryopreservation solution into a waste container. 5% Dextrose in Lactated Ringer's Solution will be added to the indicated fill line to immerse the allograft tissue. The cap will be replaced and inverted twice to suspend tissue until ready for use. 5% Dextrose will be decanted in Lactated Ringer's Solution prior to use. Implant will be used within 2 hours of thawing.

Intervention Type

Device

Intervention Name(s)

Allograft combined with BMAC

Intervention Description

A bone marrow aspiration kit will be used for bone marrow aspiration. First the bony landmarks of the posterior iliac crest and sacroiliac joint are palpated. The skin is then injected down to and including the periosteum with 1% lidocaine without epinephrine. Then, the bone marrow aspiration trochar and needle are percutaneously inserted through the skin and subcutaneous tis- sues until it reaches the posterior iliac crest. The trajectory of the needle will be parallel to the iliac crest, or perpendicular to the Anterior Superior Iliac Spine (ASIS) or Posterior Superior Iliac Spine (PSIS), depending on the harvest site used. After the trochar is inserted into the posterior iliac crest but prior to aspiration, 1 mL of heparin (1,000 U/mL) will be preloaded into the syringe. Approximately 60 mL of bone marrow will be aspirated, which requires the use of two 30-mL syringes. At the conclusion of BMAC harvesting, a sterile dressing will be applied to the harvest site.

Primary Outcome Measure Information:

Title

Percentage of participant with satisfactory bone healing using American Orthopedics Foot and Ankle Society (AOFAS) ankle-hindfoot scoring system

Description

Time Frame

baseline to 6 weeks

Title

Percentage of participant with satisfactory bone healing using American Orthopedics Foot and Ankle Society (AOFAS) ankle-hindfoot scoring system

Description

Time Frame

baseline to 12 weeks

Title

Percentage of participant with satisfactory bone healing using American Orthopedics Foot and Ankle Society (AOFAS) ankle-hindfoot scoring system

Description

Time Frame

baseline to 24 weeks

Title

Percentage of participant with satisfactory bone healing using American Orthopedics Foot and Ankle Society (AOFAS) ankle-hindfoot scoring system

Description

Time Frame

baseline to 52 weeks

Title

Percentage of patient with satisfactory post treatment pain with Visual Analogue Scale (VAS)

Description

Time Frame

baseline to 6 weeks

Title

Percentage of patient with satisfactory post treatment pain with Visual Analogue Scale (VAS)

Description

Time Frame

baseline to 12 weeks

Title

Percentage of patient with satisfactory post treatment pain with Visual Analogue Scale (VAS)

Description

Time Frame

baseline to 24 weeks

Title

Percentage of patient with satisfactory post treatment pain with Visual Analogue Scale (VAS)

Description

Time Frame

baseline to 52 weeks

10. Eligibility

Sex

All

Minimum Age & Unit of Time

18 Years

Maximum Age & Unit of Time

75 Years

Accepts Healthy Volunteers

Eligibility Criteria

Inclusion Criteria: Closed displaced intra-articular fracture without any evidence of nerve or blood vessel injury, the fractures belonged to Sanders type III according to Sanders classification and amenable to open reduction internal fixation Life expectancy of at least 1 year Patient is willing to provide informed consent, is geographically stable and able to comply with the required follow up visits, testing schedule and medication regimen Adequate soft tissue coverage at the fracture site through primary closure. Unilateral or bilateral calcaneal fractures. Exclusion Criteria: Pregnant or breastfeeding women or planning on becoming pregnant during the investigational period Patient is currently participating in an investigational drug or other device study or previously enrolled in this study. Uncontrolled diabetes mellitus (hemoglobin A1c levels > 10%) A current endocrine or metabolic disorder known to affect osteogenesis Currently has untreated malignant neoplasm(s), or is currently undergoing radiation therapy or chemotherapy. Inadequate neurovascular status in the involved limb that may jeopardize healing. Patients who have a preexisting calcaneus deformity that cannot accommodate a reduction or a previous history of osteomyelitis in the index limb. Other ipsilateral lower extremity fracture(s) if, in the opinion of the investigator, the treatment and/or rehabilitation of such fracture(s) will substantially interfere with the treatment, rehabilitation or other requirements outlined in this protocol.

Overall Study Officials:

First Name & Middle Initial & Last Name & Degree

Michael Johnson, MD

Organizational Affiliation

University of Alabama at Birmingham

Official's Role

Principal Investigator

12. IPD Sharing Statement

Plan to Share IPD

Learn more about this trial

Comparing Efficacy of Bone Marrow Aspirate Concentrate (BMAC) Combined With Allograft in Treatment of Calcaneus Fractures

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