Carpal Tunnel Syndrome Analysis
Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy in the body 1 ; 2. It is a median neuropathy at the wrist due to compression of the median nerve beneath the transverse carpal ligament 2; 3 ; 4.
Carpal tunnel syndrome is confirmed by the identification of abnormal median nerve conduction tests across the carpal tunnel. Nerve conduction tests are essential in the confirmation of the diagnosis of suspected cases of CTS. These tests are objective tests that assess the physiological status of the median nerve across the carpal tunnel 5 ; 6. The results of electrodiagnostic tests lead to changes in the recommended management of CTS [7]. There are a variety of tests. They include motor and sensory conduction tests. They vary in sensitivity …show more content…
In spite of that, the sensory tests are more sensitive and changes in it occur earlier, motor tests are usually recordable in advanced degree of CTS and in patients with peripheral polyneuropathy 2 ; 8. There are three motor tests that assess the median nerve across the wrist. Median motor conduction study measures the median distal latency (DL) across the carpal tunnel to the abductor pollicis brevis (APB) muscle. This test has poor sensitivity for the diagnosis of CTS. The second test is the median (recording second lumbrical muscle) versus ulnar (recording the 1st palmar interosseous muscle) (2-LINT) motor latency comparative test. This test has better sensitivity than the previous one [3]. The third test is the median versus ulnar [medial thenar motor (MTM)] motor latency comparative test. They are scanty studies that assessed this test 2; 3 ; 9. As regards
Carpal tunnel syndrome is confirmed by the identification of abnormal median nerve conduction tests across the carpal tunnel. Nerve conduction tests are essential in the confirmation of the diagnosis of suspected cases of CTS. These tests are objective tests that assess the physiological status of the median nerve across the carpal tunnel 5 ; 6. The results of electrodiagnostic tests lead to changes in the recommended management of CTS [7]. There are a variety of tests. They include motor and sensory conduction tests. They vary in sensitivity …show more content…
In spite of that, the sensory tests are more sensitive and changes in it occur earlier, motor tests are usually recordable in advanced degree of CTS and in patients with peripheral polyneuropathy 2 ; 8. There are three motor tests that assess the median nerve across the wrist. Median motor conduction study measures the median distal latency (DL) across the carpal tunnel to the abductor pollicis brevis (APB) muscle. This test has poor sensitivity for the diagnosis of CTS. The second test is the median (recording second lumbrical muscle) versus ulnar (recording the 1st palmar interosseous muscle) (2-LINT) motor latency comparative test. This test has better sensitivity than the previous one [3]. The third test is the median versus ulnar [medial thenar motor (MTM)] motor latency comparative test. They are scanty studies that assessed this test 2; 3 ; 9. As regards