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This study provides insight into the relatively rarely occurring L3 radiculopathy. The fact that the average age of the patients was in the eighth decade is pertinent in view of the aging population. More important is the revelation that localized pain in the knee or hip can be radicular from the L3 level and not follow a typical radiating distribution characteristic of radiculopathies at the L4, L5, and S1 levels. Although hip and knee pain are common complaints from patients in the seventh and eighth decades of life, owing to arthritis of those joints, it is now clear that an upper lumbar radiculopathy must be considered in the differential diagnosis of such painful disorders, especially in the elderly. (Source: Surgical Neurology)

MedWorm: Arthritis posted:

This study provides insight into the relatively rarely occurring L3 radiculopathy. The fact that the average age of the patients was in the eighth decade is pertinent in view of the aging population. More important is the revelation that localized pain in the knee or hip can be radicular from the L3 level and not follow a typical radiating distribution characteristic of radiculopathies at the L4, L5, and S1 levels. Although hip and knee pain are common complaints from patients in the seventh and eighth decades of life, owing to arthritis of those joints, it is now clear that an upper lumbar radiculopathy must be considered in the differential diagnosis of such painful disorders, especially in the elderly. (Source: Surgical Neurology)

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