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Phantom limb pain (PLP) is a significant and pervasive issue among upper limb amputees, severely impacting their quality of life. The literature delineating prevalence of upper versus lower limb amputations is limited, but the prevalence of total amputations in the United States is estimated to reach 3 million individuals by 2050, with approximately 185,000 new cases annually. PLP affects 60-68% of these patients, leading to heightened levels of anxiety, depression, and reduced overall well-being.
Although studies exploring the efficacy of VR therapy for PLP have reported positive outcomes, several limitations, such as small sample sizes, lack of randomization, and inconsistent treatment protocols, have impeded widespread adoption of these innovative approaches. Additionally, the literature does not sufficiently delineate which aspects of the phantom limb experience may be addressed with VR therapy. To overcome these limitations and optimize treatment efficacy, it is crucial to gain a comprehensive understanding of the phantom limb experience, including both somatosensory and kinesthesia-related symptoms. Additionally, this study will address these limitations by employing a larger sample size, rigorous methodology, and a standardized treatment protocol.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Virtual Reality (VR) Intervention | Experimental | Individuals undergoing virtual reality therapy intervention |
|
| Matched Control | Sham Comparator | The matched controls will receive standard care without the VR intervention |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| virtual reality therapy | Device | 6 2 times weekly sessions of 30-minute VR therapy in the office with pre- and post-intervention surveys |
|
| Measure | Description | Time Frame |
|---|---|---|
| Phantom limb pain levels using Short-form McGill Pain Questionnaire (SF-MPQ) | Short-form McGill Pain Questionnaire - The maximum score an individual can reach on the MPQ is 78. According to the questionnaire, a person with a score of 0 effectively does not experience pain. A person with a high score, nearer to the highest score of 78, more than likely deals with chronic pain daily. | Baseline |
| Phantom limb pain levels using Short-form McGill Pain Questionnaire (SF-MPQ) | Short-form McGill Pain Questionnaire - The maximum score an individual can reach on the MPQ is 78. According to the questionnaire, a person with a score of 0 effectively does not experience pain. A person with a high score, nearer to the highest score of 78, more than likely deals with chronic pain daily. | Week 1 |
| Phantom limb pain levels using Short-form McGill Pain Questionnaire (SF-MPQ) | Short-form McGill Pain Questionnaire - The maximum score an individual can reach on the MPQ is 78. According to the questionnaire, a person with a score of 0 effectively does not experience pain. A person with a high score, nearer to the highest score of 78, more than likely deals with chronic pain daily. | Week 2 |
| Phantom limb pain levels using Short-form McGill Pain Questionnaire (SF-MPQ) | Short-form McGill Pain Questionnaire - The maximum score an individual can reach on the MPQ is 78. According to the questionnaire, a person with a score of 0 effectively does not experience pain. A person with a high score, nearer to the highest score of 78, more than likely deals with chronic pain daily. | Week 3 |
| Phantom limb pain levels using Short-form McGill Pain Questionnaire (SF-MPQ) | Short-form McGill Pain Questionnaire - The maximum score an individual can reach on the MPQ is 78. According to the questionnaire, a person with a score of 0 effectively does not experience pain. A person with a high score, nearer to the highest score of 78, more than likely deals with chronic pain daily. |
| Measure | Description | Time Frame |
|---|---|---|
| Change in Brief Pain Inventory (BPI) scores | Worst Pain Score: 1 - 4 = Mild Pain. Worst Pain Score: 5 - 6 = Moderate Pain. Worst Pain Score: 7 - 10 = Severe Pain - Scores range from 0 to 10 with higher scores indicating greater pain interference. | Hour 24 |
| Change in Short-Form McGill Pain Questionnaire (SF-MPQ) scores |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Joshua Steinke | Contact | 704-942-4351 | joshua.steinke@orthocarolina.com | |
| Ben Connell | Contact | ben.connell@orthocarolina.com |
| Name | Affiliation | Role |
|---|---|---|
| Glenn Gaston, MD | Atrium Health Musculoskeletal Institute | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| OrthoCarolina Hand Center | Recruiting | Charlotte | North Carolina | 28207 | United States |
Individual Participant Data that underlie the results reported in this article, after deidentification
Beginning 3 months and ending 5 years following article publication
Researchers who provide a methodologically sound proposal
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| ID | Term |
|---|---|
| D010591 | Phantom Limb |
| D000377 | Agnosia |
| ID | Term |
|---|---|
| D010468 | Perceptual Disorders |
| D019954 | Neurobehavioral Manifestations |
| D009461 | Neurologic Manifestations |
| D009422 | Nervous System Diseases |
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| ID | Term |
|---|---|
| D035061 | Control Groups |
| ID | Term |
|---|---|
| D015340 | Epidemiologic Research Design |
| D004812 | Epidemiologic Methods |
| D008919 | Investigative Techniques |
| D012107 | Research Design |
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Pre- and post-intervention surveys will be used to assess the effects of virtual reality (VR) therapy on the phantom limb experience in the intervention group. Matched controls from the registry will be surveyed on their phantom limb symptoms at matching time intervals to the intervention group for comparison.
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|
| matched control group | Other | taking the same surveys as the VR intervention group on a weekly basis for 6 weeks |
|
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| Week 6 |
A short form of the McGill Pain Questionnaire (SF-MPQ) has been developed. The main component of the SF-MPQ consists of 15 descriptors (11 sensory; 4 affective) which are rated on an intensity scale as 0 = none, 1 = mild, 2 = moderate or 3 = severe. Consists of 22 different descriptors of pain and each item is rated based on a 0-10 scale with 0 equal to no pain and 10 equal to the worst pain ever during the past week. The total score is calculated by summing 22 individual scores. |
| Week 6 |
| Phantom Limb Experience Survey score | it is qualitative and there is no good or bad, this is just to define the population and better characterize phantom limb experience - assesses presence, onset, location, character, intensity, triggers, and treatment of phantom limb sensations and phantom limb pain. Includes questions on phantom limb posture, movement, size changes, and telescoping. | Baseline |
| Change in Virtual Reality (VR) Therapy Survey scores | There are several questions within this survey to assess attitude towards VR, which activities are favored and then the effect VR had on them. There is a mix of qualitative questions and quantitative. Quantitative questions are on Likert Scale 1-5. An interval change of +1 on Likert scale would be "good" for question on posture, control over limb. For how long the therapy effect lasts after session is over, it will vary from hours to days to weeks (which is why all descriptors are in there). Even if it lasted 1 hour this would be considered "good". | Week 6 |
| System Usability Scale | Assesses subjective usability and satisfaction with the VR system - A perfect score of 100% signifies flawless usability and an exceptional user experience. The average SUS score is 68, and scores up to 70% are generally considered good; a good sus score indicates a decent level of usability. | Week 6 |
| Simulator Sickness Questionnaire | negligible (< 5), minimal (5 - 10), significant (10 - 15), and concerning (15 - 20) symptoms. A simulator resulting in total scores above 20 is considered "bad" | Week 6 |
| Change in EuroQol-5 Dimensions-5 Levels (EQ-5D-5L) scores | Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems and extreme problems. The patient is asked to indicate his/her health state by ticking the box next to the most appropriate statement in each of the five dimensions.EQ-5D-5L index scores range from -0.59 to 1, where 1 is the best possible health state | Week 6 |
| D010149 | Pain, Postoperative |
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D012816 | Signs and Symptoms |
| D010146 | Pain |
| D008722 | Methods |