Dorsal hamstring pain does not usually lead to the symptoms of weak knees, dorsal hamstring pain and weak knees may be caused by lumbar disc herniation, or may be caused by degenerative joint disease.
1. Herniated lumbar intervertebral disc: Herniated lumbar intervertebral disc can lead to spinal cord or nerve root compression, which will cause the nerves innervating the knee and dorsum of the foot to be compressed, resulting in abnormal sensation and muscle strength in the knee and dorsum of the foot, and causing dorsal hamstring pain and knee weakness.
2. Degenerative joint lesions: degenerative joint lesions of the knee and ankle joints can lead to osteophytes, synovial hyperplasia and other pathologic changes, resulting in synovitis, joint free body and other lesions, which can cause dorsal tendon pain and knee tenderness when the joints are moving.
Dorsal tendon pain, knee weakness and other symptoms may also be caused by other reasons, based on the above symptoms alone sometimes can not be accurately judged, it is recommended that the patient timely hospital consultation, through the examination to clarify the cause of the disease, and then carry out standardized treatment.