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Dorsal root entry zone lesions for phantom limb pain with brachial plexus avulsion: A study of pain and phantom limb sensation
Stereotactic and Functional Neurosurgery , 06/30/09

Zheng Z et al. – Dorsal root entry zone (DREZ) lesions are effective for treatment of phantom limb sensation (PLS) with brachial plexus avulsion (BPA). Alteration in PLS after surgery may be a predictive factor for good pain relief. The good response of PLP pts with BPA to DREZ lesions suggests that evaluation of cervical dorsal roots should be conducted in pts with post-traumatic PLP.

• Study of 14 post-traumatic pts with BPA and upper limb amputation
• All pts had PLP in and underwent DREZ lesions
• After surgery, pts asked to estimate global percent of pain relief (0%-100%)
• Query of pts for phantom limb sensation (PLS)

• Overall, 9 (64.3%) of 14 pts had satisfactory pain relief
• Mean follow-up: 15.2 ± 6.6 mo
• Among 9 pts with satisfactory pain relief, PLS altered in 6 (66.7%)
• Among other 5 pts with poor pain relief, none experienced alterations in PLS

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