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Adductor T reflex abnormalities in patients with decreased patellar reflexes
Author(s) -
Tataroglu Cengiz,
Deneri Ersin,
Ozkul Ayca,
Sair Ahmet,
Yaycioglu Soner
Publication year - 2009
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.21299
Subject(s) - reflex , medicine , h reflex , electromyography , triceps reflex , anesthesia , vastus medialis , diabetic neuropathy , anatomy , physical medicine and rehabilitation , diabetes mellitus , withdrawal reflex , endocrinology
The adductor reflex (AR) is a tendon reflex that has various features that differ from other tendon reflexes. This reflex was tested in different disorders presenting with diminished patellar reflexes such as diabetic lumbosacral radiculoplexus neuropathy (DLRPN), L2–L4 radiculopathy, and distal symmetric diabetic neuropathy (diabetic PNP). The AR and crossed‐AR (elicited by tapping the contralateral patellar tendon) were recorded using concentric needle electrodes. Additionally, the patellar T reflex (vm‐TR) and vastus medialis H reflex (vm‐HR) were recorded using surface electrodes. AR was recorded in only one out of eight patients with DLRPN, but it was recorded in 21 out of 22 patients with L2–L4 radiculopathy (95.5%). Of these reflexes, only AR showed prolonged latency in the L2–L4 radiculopathy group. The latencies of AR, vm‐TR, and vm‐HR were prolonged in patients with diabetic PNP. We conclude that AR can be useful in the differential diagnosis of some lower motor neuron disorders that present with patellar reflex disturbance. Muscle Nerve 40: 264–270, 2009