This is a prospective, randomized, controlled clinical trial comparing synthetic cartilage implantation versus osteochondral autograft transfer for treatment of first metatarsophalangeal (MTP) arthritis. This data will allow for accurate comparisons between the two groups in regards to functional outcome, clinical outcome, pain relief, and complications.
First MTP joint arthritis or hallux rigidus is the most common arthritic condition of the foot. Historically, there have been several options to treat this condition surgically, but the current standard for advanced hallux rigidus is first MTP anthrodesis. Newer joint preserving procedures offer patients effective relief of pain and improving functional outcomes as well as maintaining, and potentially improving, range of motion for the first MTP joint. Osteochondral autograft transfer has been shown to be an effective treatment for hallux rigidus, and involves harvesting a small cylindrical osteochondral graft from a site remote of the first MTP joint and transferring the graft to the head of the first metatarsal. A new synthetic cartilage implant, Cartiva, has been shown to have equivalent functional outcomes, pain scores, and complications to anthrodesis, but the first MTP range of motion in the Cartiva group was maintained or even improved in some patients. This is a prospective, randomized, controlled clinical trial comparing synthetic cartilage implantation versus osteochondral autograft transfer for treatment of first metatarsophalangeal (MTP) arthritis. The hypothesis is that clinical range of motion, pain scores, subjective clinical outcomes, and complications will not be clinically inferior with the synthetic cartilage implant group compared to the osteochondral autograft transfer group.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
The Synthetic Cartilage Implant will be implanted in to the first metatarsal head according to the manufacturer's recommendations.
The osteochondral autograft transfer will be harvested from the ipsilateral lateral femoral condyle (or contralateral if a previous ipsilateral total knee anthroplasty or trauma) and the graft will be transferred to the first metatarsal head.
Range of Motion
Pre-operative and post-operative clinical range of motion of the first MTP joint
Time frame: 2 years
Patient's Pain Level
Pre-operative and post-operative visual analog pain scale
Time frame: 2 years
Patient's Quality of Life
Foot and Ankle Ability Measure (FAAM) sports score uses patient-report to determine function
Time frame: 2 years
Clinically-Assessed Foot and Ankle Function
American Orthopedic Foot and Ankle Score (AOFAS) Hallux Metatarsophalangeal-Interphalangeal Scale
Time frame: 2 years
Health Status
12-item short form health survey, use of concomitant medications, and changes in health status
Time frame: 2 years
Surgical Complications
Fractures, nerve injuries, blood loss, infection, etc.
Time frame: 2 years
Implant Failure
Failure of the Cartiva Synthetic Cartilage Implant
Time frame: 2 years
Secondary Surgical Intervention
Additional subsequent procedures, including removal, reoperation, revision, or supplemental fixation
Time frame: 2 years
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