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A debate regarding ankle fracture fixation centers on time to weight bearing. Recent literature has supported immediate weight bearing in surgically stabilized ankle fractures. However, significant variation among orthopaedic surgeons persists, and weight bearing recommendations change when there is a syndesmotic disruption. There is very little literature on time to weight bearing, with most available series casting/immobilizing these injuries for 6 weeks after fixation. There is very little data examining post-operative weight bearing after syndesmotic stabilization, and the majority centers on screw fixation. The minimum time to weight bearing after an ankle fracture with syndesmotic fixation in the literature is 4 weeks, with most focusing on 6 to 12 weeks. Based on biomechanical data regarding suture button techniques, the investigators hypothesize that patients undergoing ankle fracture fixation plus suture button fixation of their syndesmotic disruption will be able to safely bear weight early (2 weeks) after surgery. The investigator's null hypothesis is that there will be no difference between early weight bearing (2 weeks), and late weight bearing (6 weeks) in terms of outcome, hardware failure, loss of reduction, and return to work.
Adult patients who have an ankle fracture with suspected syndesmotic disruption, requiring a suture button fixation operative intervention will be randomized into early (2 weeks post-surgically) weight-bearing status or delayed weight-bearing status (non-weight-bearing for 6 weeks following fixation).
Primary objective: Maintenance of ankle reduction at 1 year follow-up (measured by comparing immediate post-op CT and 1 year time-point CT).
Secondary Objectives: Pain scores, surgical experience, work productivity and activity impairment , AAOS foot and ankle scores (2w, 6w, 12w, 6m, 1y), use of assistive devices, range of motion, physical therapy requirement/length of use/compliance, post-operative protocol compliance, post-operative complications (wound healing, infection, implant failure, fracture healing).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Early Weight-Bearing | Active Comparator | Being directed to bear weight on the affected ankle two weeks from suture button fixation for syndesmotic disruption |
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| Delayed/Late Weight-Bearing | Active Comparator | Being directed to bear weight on the affected ankle six weeks from suture button fixation for syndesmotic disruption |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Early Weight-Bearing | Other | Being directed to bear weight on the affected ankle two weeks from suture button fixation for syndesmotic disruption |
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| Measure | Description | Time Frame |
|---|---|---|
| Measure of the syndesmotic change | Determined by comparing the 1-year, post-operative CT scan to the immediate post-operative CT scan of the injured ankle | 1 year |
| Measure | Description | Time Frame |
|---|---|---|
| Pain scores | Measured on a 0-10 scale by VAS or PROMIS patient reported outcome forms | 2 weeks to 1 year |
| Surgical Experience (SSQ-8) | The SSQ-8 (Surgical Satisfaction Score) is a patient administered 8-item survey designed to asses satisfaction after a surgical procedure. Answers are then measured on a scale of 1 to 5 or 6, with 1 being the best outcome score. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Kyle Schweser, MD | University of Missouri Health System, Department of Orthopaedic Surgery | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Vicki Jones | Columbia | Missouri | 65212 | United States |
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| Delayed/Late Weight-Bearing | Other | Being directed to bear weight on the affected ankle six weeks from suture button fixation for syndesmotic disruption |
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| Day 0 |
| Work productivity and activity impairment (WPAI) | The Work Productivity and Activity Impairment (WPAI) questionnaire is a self-administered instrument used to assess the impact of disease on productivity. The sum of specific health problem impairment and impairment due to other health reasons is equal to impairment due to all health reasons. WPAI outcomes are expressed as impairment percentages, with higher numbers indicating greater impairment and less productivity, i.e., worse outcomes. | 6 weeks to 1 year |
| Foot and ankle outcomes (AAOS) | The AAOS foot and ankle questionnaire is a patient-administrated 25-item survey specifically developed for foot and ankle-related disability. The questionnaire is divided into two scales, the Foot and Ankle Core scale, comprised of 20 questions and the Shoe Comfort Scale with five questions. The questions themselves are distributed amongst five different categories: Pain (9 items), function (6 items), stiffness and swelling (2 items), giving way (3 items) and shoe comfort (5 items). Answers are then measured on a scale of 1 to 5 or 6, with1 being the best outcome score. | 2 weeks to 1 year |