Wounds and Injuries Clinical Trial
Official title:
Blood Flow Restriction Training After Patellar INStability (BRAINS Trial)
This research study is designed to allow health care professionals and researchers to answer many questions about whether a new type of physical therapy called blood flow restriction training (called BFRT) will improve recovery for those with patellar instability.
Participants will randomly be assigned to 1 of 2 groups. This means that neither the participant or their doctor will not choose the treatment, but that the treatment will be randomly selected (like a coin toss). The study treatments is blood flow restriction training (BFRT). BFRT uses an air cuff that is inflated around the top of the thigh. This temporarily limits blood flow to the muscles and may allow the participant to recover strength more quickly after injury. As will be described later, the participant will be closely monitored during all study treatments to make sure they are as safe as possible. The two groups that participants could be assigned to are: 1. Standard physical therapy 2. Standard physical therapy and BFRT Physical Therapy Sessions: We are comparing two physical therapy interventions, one is the standard of care and the other is the standard of care plus an additional treatment. Participants have a 50/50 chance of receiving either treatment. If randomized to receive BFRT, the air cuffs will then be placed on the participants' thighs and they will be doing a standardized exercise program that will vary depending on the stage of rehabilitation they are in and as determined by the study personnel. Participants will also complete a standardized course of physical therapy. Activities in physical therapy may include ice over the knee, range of motion exercises to maintain hip strength and gait training exercises as needed. The following procedures may be performed. Some procedures may not be performed due to time constraints, availability of equipment, and/or by the decision of the investigator. Before initiating physical therapy, participants will be asked some questions including but not limited to the following: age, sex, level of activities, and expectations. Participants will also complete a Sports Activity Scale to determine their physical activity level. Timeline of Study Visits: Visit 1 Screening and enrollment: Upon arriving at the clinic or Biomotion Laboratory, potential subjects will have the following assessments: range of motion and knee instability, both of which are the standard of care for a patient with a suspected patellar instability. After providing informed consent to participate in the study, we will ask you to provide a urine sample and will collect about 2 teaspoons of blood for laboratory testing. The blood will be collected from your arm using standard venipuncture. In addition, we will ask you questions about your medical history including current medications, demographic information, BMI, and smoking status. You will be asked to complete three study questionnaires: the Norwich Patella Instability Score which asks questions about your knee, the Cincinnati Occupational Rating Scale which asks questions about the physical demands of your job or daily life, and a Visual Analogue Scale that will ask you to rate your current pain. You will be randomized to either standard physical therapy or standard physical therapy with BFRT. You have a 50/50 chance of having BFRT. We will also schedule you to go to the BioMotion laboratory for baseline strength testing and to have your first study MRI at the MRISC. Visit 2 (1 week) - Knee and Hip Strength - Walking Biomechanics - MRI Visit 3 (5 weeks) - Knee and Hip Strength - Questionnaires Visit 4 (9 weeks) - Lab specimens collected (urine and about 2 teaspoons of blood) - Knee and Hip Strength - Walking Biomechanics - Questionnaires Visit 5 (6 months) - Lab specimens collected (urine and about 2 teaspoons of blood) - Knee and Hip Strength - Walking and Running Biomechanics - Questionnaires Visit 6 (1 year) - Lab specimens collected (urine and about 2 teaspoons of blood) - Knee and Hip Strength - Walking, Running, and Jumping Biomechanics - Questionnaires - MRI Visit 7 (2 years) - Lab specimens collected (urine and about 2 teaspoons of blood) - Knee and Hip Strength - Walking, Running, and Jumping Biomechanics - Questionnaires - MRI ;
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