High-frequency Ultrasound In Ulnar Nerve Compression Lesions

Objective Discusses high frequency supersonic, in the elbow department ruler nerve card presses in pathological change's clinical practice value. Methods Chooses 40 passes through clinical and the neuroelectricity physiology plans to examine for the bended tube syndrome (CTS) the patient (40 to contract elbow), in the patient group the opposite side healthy arm (does not have ruler nerve card to press symptom and symptom, non-circumference neuritis medical history) takes own control group, applies American GE the LOGIQ9 color ultra meter, the 12L linear polarization probe head, the frequency 9~14MHz wide band probe head. Patient horizontal, the upper limb slight outward turning, abducts 60-75°, follows the nerve to the patient two-sided same stage level the dissection line longitudinal, the crosswise multi-sections to sweep directly separately looks up, and pays attention to and the blood vessel, the tendon, the ligament echo distinction. Contracts the extremity group: Is before the normal place identification ruler nerve, the observation ruler nerve loses shape, the echo change situation, is clear about the card to press the position and the card presses the reason, measured that the gauge rule nerve card presses and the card presses the near-end ruler nerve thickness, and describes the law survey corresponding section with the path nerve CSA. Healthy extremity group: Corresponds the position in the patient healthy opposite side to measure the gauge rule nerve thickness and CSA. Sees the comparison in the supersonic discovery and the technique, the computation supersonic to the cause of disease detection rate, simultaneously the nerve myo- electrograph carries on the contrast before the technique, the computation union diagnosis rate. Results of high frequency ultrasound detection of ulnar nerve compression rate was higher health risk of elbow elbow with the ulnar nerve cross section area of partial thickness and a significant change, the difference was statistically significant (P <0.05), suffering elbow the ulnar nerve CSA and motor conduction velocity (MNCV) have good correlation, the correlation coefficient was -0.933. Conclusion High-frequency ultrasound has a painless non-invasive, convenient and the advantages of dynamic real-time observation of signs of ulnar nerve compression and clear etiology, diagnosis of cubital tunnel syndrome has important reference value for clinical surgical options have important guiding significance.