INDICATIONS
The DynaNail TTC Fusion System is indicated for use in tibiotalocalcaneal (TTC)
fusion procedures to treat the following conditions:
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Post-traumatic and degenerative arthritis
Post-traumatic or primary arthrosis involving both ankle and subtalar joints
Revision after failed ankle arthrodesis with subtalar involvement
Failed total ankle arthroplasty
Non-union ankle arthrodesis
Rheumatoid hindfoot
Absent Talus (requiring tibiocalcaneal arthrodesis)
Avascular necrosis of the talus
Neuroarthropathy or neuropathic ankle deformity
Neuromuscular disease and severe deformity
Osteoarthritis
Charcot Foot
Previously infected arthrosis with confirmed eradication of infection
Contraindications
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Patients with an active local or systemic infection
Patients with an active soft tissue infection or osteomyelitis of foot and ankle
Patients with severe peripheral vascular disease
Patients with an obliterated medullary canal or other conditions that tend
to retard healing such as blood supply limitations or previous infections
Patients with an insufficient plantar pad
Skeletally immature patients where the implant would cross open
epiphyseal plates
Patients having an intact asymptomatic subtalar joint
Patients with significant tibial malalignment (>10 degrees in either
sagittal or coronal plane)
Patients with a dysvascular limb
Patients with severe longitudinal deformity
Patients with an insufficient quantity or quality of bone to permit fusion
of the joints or stabilization of the arthrodesis
Patients with conditions that restrict his or her ability or willingness to
follow postoperative instructions during the healing process
Patients with foreign body sensitivity, suspected or documented metal
allergy or intolerance. Where material sensitivity is suspected, appropriate
tests should be conducted and sensitivity ruled out prior to implantation
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