Dataset Information

Combat-related bridge synostosis versus traditional transtibial amputation: comparison of military-specific outcomes.

ABSTRACT: The aim of our study was to determine military-specific outcomes for transtibial amputations of US Service members using either the traditional technique (Burgess) or the Ertl technique. All US Service members sustaining transtibial, combat-related amputation from September 2001 through July 2011 were reviewed. Amputation type, mechanism of injury, time interval to amputation, age, sex, branch of service, rank, force, nature, and injury severity score were recorded. Outcomes were determined by analyzing military-specific medical review results, to include the following: Physical Evaluation Board Liaison Office (PEBLO) rating (0-100), PEBLO outcome (permanent retirement, temporary disability retirement, separation without benefits, continuation of active duty, or fit for redeployment), and the rate of redeployment. Amputation type (Ertl vs. Burgess) was determined by reviewing postoperative radiographs and radiology reports. Data from all of the above categories were compared for both Ertl and Burgess amputees. Of 512 subjects identified, 478 had radiographs or radiology reports distinguishing between Ertl or Burgess transtibial amputation. A total of 406 subjects underwent the Burgess procedure, and 72 subjects underwent the Ertl procedure. There was not a significant difference between the two groups in review board rating (p = 0.858), review board outcome (p = 0.102), or ability to deploy (p = 0.106); however, subjects that underwent the Ertl procedure remained on active duty at a significantly higher rate (p = 0.021). There is a higher rate of remaining on active duty using the Ertl technique. This study suggests that there is an improvement in functional outcome with the Ertl technique.

SUBMITTER: Plucknette BF

PROVIDER: S-EPMC4814387 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature

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Combat-related bridge synostosis versus traditional transtibial amputation: comparison of military-specific outcomes.

Plucknette Benjamin F BF Krueger Chad A CA Rivera Jessica C JC Wenke Joseph C JC

Strategies in trauma and limb reconstruction 20151207 1

The aim of our study was to determine military-specific outcomes for transtibial amputations of US Service members using either the traditional technique (Burgess) or the Ertl technique. All US Service members sustaining transtibial, combat-related amputation from September 2001 through July 2011 were reviewed. Amputation type, mechanism of injury, time interval to amputation, age, sex, branch of service, rank, force, nature, and injury severity score were recorded. Outcomes were determined by a ...[more]

PMID: 26644067

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Project description:Contemporary prosthetic feet are generally optimized for either daily or high-level activities. Prosthesis users, therefore, often require multiple prostheses to participate in activities that span a range of mobility. Crossover feet (XF) are designed to increase the range of activities that can be performed with a single prosthesis. However, little evidence exists to guide clinical prescription of XF relative to traditional energy storing feet (ESF). The objective of this study was to assess the effects of XF and ESF on health outcomes in people with transtibial amputation. A randomized crossover study was conducted to assess changes in laboratory-based (endurance, perceived exertion, walking performance) and community-based (step activity and self-reported mobility, fatigue, balance confidence, activity restrictions, and satisfaction) outcomes. Twenty-seven participants were fit with XF and ESF prostheses with standardized sockets, interfaces, and suspensions. Participants were not blinded to the intervention, and wore each prosthesis for one month while their steps were counted with an activity monitor. After each accommodation period, participants returned for data collection. Endurance and perceived exertion were measured with the Six-Minute Walk Test and Borg-CR100, respectively. Walking performance was measured using an electronic walkway. Self-reported mobility, fatigue, balance confidence, activity restrictions, and satisfaction were measured with survey instruments. Participants also reported foot preferences upon conclusion of the study. Differences between feet were assessed with a crossover analysis. While using XF, users experienced improvements in most community-based outcomes, including mobility (p = .001), fatigue (p = .001), balance confidence (p = .005), activity restrictions (p = .002), and functional satisfaction (p < .001). Participants also exhibited longer sound side steps in XF compared to ESF (p < .001). Most participants (89%) reported an overall preference for XF; others (11%) reported no preference. Results indicate that XF may be a promising alternative to ESF for people with transtibial amputation who engage in a range of mobility activities. TRIAL REGISTRATION:ClinicalTrials.gov NCT02440711.

Project description:BackgroundPersons with lower limb amputation often experience decreased physical capacity, difficulty walking, and increased fall risk. To either prevent or recover from a loss of balance, one must effectively regulate their stepping movements. It is therefore critical to identify how well persons with amputation regulate stepping. Here, we used a multi-objective control framework based on Goal Equivalent Manifolds to identify how persons with transtibial amputation (TTA) regulate lateral stepping while walking without and with lateral perturbations.Research questionWhen walking in destabilizing environments, do otherwise healthy persons with TTA exhibit greater difficulty regulating lateral stepping due to impaired control? Or do they instead continue to use similar strategies to regulate lateral stepping despite their amputation?MethodsEight persons with unilateral TTA and thirteen able-bodied (AB) controls walked in a virtual environment under three conditions: no perturbations, laterally oscillating visual field, and laterally oscillating treadmill platform. We analyzed step-to-step time series of step widths and absolute lateral body positions. We computed means, standard deviations and Detrended Fluctuation Analysis scaling exponents for each time series and computed how much participants directly corrected step width and position deviations at each step. We compared our results to computational predictions to identify the underlying causes of our experimental findings.ResultsAll participants exhibited significantly increased variability, decreased scaling exponents, and tighter direct control when perturbed. Simulations from our stepping regulation models revealed that people responded to the increased variability produced by the imposed perturbations by tightening their control of both step width and lateral position. Participants with TTA exhibited only a few minor differences from AB in lateral stepping regulation, even when subjected to substantially destabilizing lateral perturbations.SignificanceSince control of stepping is intrinsically multi-objective, developing effective interventions to reduce fall risk in persons with amputation will likely require strategies that adopt multi-objective approaches.

Dataset Information

Combat-related bridge synostosis versus traditional transtibial amputation: comparison of military-specific outcomes.

Publications

Combat-related bridge synostosis versus traditional transtibial amputation: comparison of military-specific outcomes.

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