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Clinical Trial Summary

The purpose of this study is to determine the clinical efficacy of a novel sustained dynamic compression intramedullary nail for tibiotalocalcaneal (TTC) arthrodesis.


Clinical Trial Description

This proposal is a collaborative effort between MedShape and the University of Alabama at Birmingham. This is a prospective investigation to assess the clinical outcomes of patients with a tibiotalocalcaneal arthrodesis with the sustained Dynamic Compression Intramedullary Nail (DynaNail). We are planning on enrolling 30 patients. Patients with end-stage tibiotalar (ankle) and talocalcaneal (subtalar) joint arthritis from any etiology will be asked to enroll in the study. After informed consent, the patients will be asked to complete the following patient reported outcomes questionnaires (standard of care for all patients in the Foot and Ankle section): 100mm Visual Analog Scale (VAS) for pain, Short form-36 (SF-36), and the Foot and Ankle Ability Measure (FAAM). After informed consent, they will then be scheduled for surgery in a routine fashion. The following surgical procedure is standard of care. The surgical procedure will involve both tibiotalar and talocalcaneal joint preparation through any approach (lateral, posterior, anterior with sinus tarsi). The use of supplemental bone graft is at the discretion of the treating surgeon but must be documented. The MedShape DynaNail will then be inserted according to the manufacturer's technique. The patient will be placed in a short leg splint and kept non-weight bearing. The patient will be discharged from the hospital when medically ready and follow-up in two weeks. At two weeks, the patient will return to clinic and their splint will be removed. Non-weight bearing radiographs of the hind foot will be taken to assess the amount of travel of the compressive element. The patient will be placed in a non-weight bearing cast. The patient will then be asked to return in four weeks (6 weeks post-operatively). At this time additional non-weight bearing radiographs will be taken to assess the amount of travel of the compressive element. The patient will be asked to return at 12 weeks, 24 weeks, and one year after surgery. At 24 weeks, a CT scan will be obtained to assess healing and fusion. At each of these time-points, the same patient specific outcome questionnaires will be administered. Patients will be identified in the clinic by an attending orthopaedic foot and ankle surgeon or his physician assistant based on clinical exam and radiographic findings. Inclusion criteria include anyone over age 18 who has ankle and subtalar arthritis and has failed nonoperative management. Typically, these patients have multiple medical comorbidities and therefore the exclusion criteria will be patients who are not healthy enough to undergo surgery. Additional exclusion criteria include non-English speakers, and patients that are blind, illiterate, or are prisoners. Patients of all racial, religious, and cultural backgrounds will be included in this study. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04784273
Study type Observational [Patient Registry]
Source MedShape, Inc
Contact Kenneth Dupont, PhD, MS
Phone 6782353336
Email kenneth.dupont@medshape.com
Status Recruiting
Phase
Start date September 23, 2020
Completion date September 2023

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