Protective and risk factors for phantom limb pain and residual limb pain severity
Pain Practice Mar 20, 2020
Münger M, Pinto CB, Pacheco‐Barrios K, et al. - Given a lack of clarity concerning the exact mechanisms underlying the development and maintenance of phantom limb pain, researchers here sought the factors influencing pain intensity in chronic, lower limb, traumatic phantom limb pain patients. They performed a cross‐sectional analysis of 71 unilateral traumatic lower limb amputees. Results showed that a large majority of the chronic phantom limb pain patients experiences amputation related perceptions (sensations: 90.1%, N = 64; residual pain: 81.7%, N = 58) and there are different neurobiological mechanisms to explain phantom limb and residual limb pain intensity. Following were the two significant protective factors of phantom limb pain intensity: phantom limb movement and having effective treatment for phantom limb pain previously; following were the two significant risk factors: phantom limb sensation intensity and age. On the other hand, risk factors are different for residual limb pain: presence of pain before amputation and level of amputation (in addition to the same protective factors).
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