Abstract
The purpose of this study was to determine radiographic correction achieved in adult
patients treated with an extraosseous talotarsal stabilization (EOTTS) procedure.
Patients diagnosed with flexible/reducible talotarsal joint dislocation (partial)
underwent surgical correction with the HyProCure® EOTTS device. Preoperative and postoperative weightbearing radiographs taken in the
anteroposterior (AP) and lateral views for a total 95 feet (in 70 patients) were analyzed
to determine standardized radiographic angles, and to quantify the correction obtained
after the EOTTS procedure. Postoperative radiographs were taken at an average follow-up
of 17 days from the surgery date. The mean preoperative and postoperative talar second
metatarsal angles (measured from the AP radiographs) were 24.8° ± 1.0° and 5.8° ±
0.9°, respectively, that is, mean decrease by 19°. The mean preoperative and postoperative
talar declination angles (measured from the lateral radiographs) were 25.1° ± 0.7°
and 19.4° ± 0.5°, respectively, that is, mean decrease by 5.7°. The mean preoperative
and postoperative calcaneal inclination angles (measured from the lateral radiographs)
were 21° ± 0.7° and 21.8° ± 0.7°, respectively, that is, mean increase by 0.8°. Postoperatively,
the talar second metatarsal and talar declination angles were reduced to average values
reported in the literature for normal feet. This study shows the efficacy of a minimally
invasive EOTTS procedure in restoring the normal angular relationships between hindfoot
and forefoot osseous structures on weightbearing, in both the transverse and sagittal
planes. This indicates stabilization of the talotarsal joint complex and elimination
of hyperpronation, which may lead to reduced pain, improved foot functional abilities,
and patient satisfaction.
Level of Clinical Evidence
Keywords
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Article info
Publication history
Published online: July 16, 2012
Footnotes
Financial Disclosure: This study was funded by Graham International Implant Institute (Macomb, MI).
Conflict of Interest: Michael E. Graham is the inventor of HyProCure. He is the sole owner of GraMedica, LLC, the company that manufacturers and distributes HyProCure.
Identification
Copyright
© 2012 American College of Foot and Ankle Surgeons. Published by Elsevier Inc. All rights reserved.