The Experts below are selected from a list of 42 Experts worldwide ranked by ideXlab platform
Hiroki Iida - One of the best experts on this subject based on the ideXlab platform.
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esra19 0202 efficacy of ultrasound guided pulsed radiofrequency for Lower Subscapular Nerve in patients with persistent chronic shoulder pain after pulsed radiofrequency for suprascapular Nerve
Regional Anesthesia and Pain Medicine, 2019Co-Authors: Shinobu Yamaguchi, Noritaka Yoshimura, Hiroki IidaAbstract:Background and aims Pulsed radiofrequency (PRF) for suprascapular Nerve has been proposed as a therapeutic option in chronic shoulder pain. However, some cases remain pain and limited range of motion after treatment. In the present study, we aimed to assess the efficacy of ultrasound-guided PRF for Lower Subscapular Nerve in patients who complained persisting shoulder pain after PRF for suprascapular Nerve. Methods A total of 15 patients with chronic intractable shoulder pain who did not respond to PRF for suprascapular Nerve underwent ultrasound-guided R-RF treatment for Lower Subscapular Nerve. Radio-frequency needle was inserted to the fascial space between teres major and Subscapularis muscle, PRF was performed 42° C for 360 seconds. Pain intensity was scored using the numeric rating scale (NRS 0–10), and function was measured using simple shoulder test (SST). Results There were 12 women and 3 men. Mean age was 58 years (range, 45–84). Significant decrease in pain (p Conclusions Ultrasound-guided PRF for Lower Subscapular Nerve could be a useful treatment in the patients with intractable persistent shoulder pain and dysfunction which is not improved by PRF for suprascapular Nerve.
Yam Eng Tan - One of the best experts on this subject based on the ideXlab platform.
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the Lower Subscapular Nerve conduction studies and utilisation in brachial plexopathy evaluation
Journal of the Neurological Sciences, 2006Co-Authors: Kumar M Prakash, Stephanie Fookchong, Teng Hee Leoh, Yang F Dan, Siti Nurjannah, Yam Eng TanAbstract:Abstract Objective To define the optimal Nerve conduction study (NCS) method of Lower Subscapular Nerve and evaluate its clinical utility. Methods Thirty healthy adults (8 males) with a mean age of 45.2 ± 16.5 (range, 21–75) years were recruited in this study. A total of sixty Nerves were studied using the Dantec Counterpoint EMG machine (Dantec, Skovlunde, Denmark). 6 patients with clinical and electrodiagnostic evidence of brachial plexopathy were also evaluated. Results The mean ± 2 standard deviation values of the distal latencies, base-to-peak amplitudes and inter-side amplitude ratio were 2.38 ± 0.52 (range, 1.80–2.90) ms, 13.10 ± 5.10 (range, 8.70–21.10) mV and 0.93 ± 0.12 (range, 0.67–1.00), respectively. There was a significant correlation between the subject age and the base-to-peak amplitudes. All 6 patients with brachial plexopathy had reduced base-to-peak amplitudes as well as inter-side amplitude ratio of less than 0.67 (the normal limits for control). Conclusion The Lower Subscapular NCS were satisfactorily recordable and well tolerated. It was useful in evaluation of patients with brachial plexopathy.
Yue Zhu - One of the best experts on this subject based on the ideXlab platform.
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semiquantifying of fascicles of the c7 spinal Nerve in the upper and Lower Subscapular Nerves innervating the Subscapularis and its clinical inference in erb s palsy
Clinical Anatomy, 2013Co-Authors: Le-zi Chen, Liang Chen, Yue ZhuAbstract:To elucidate anatomic basis of susceptibility for contracture of the Subscapularis muscle in Erb's palsy of the brachial plexus, we semiquantitatively studied the spinal Nerve origins of the Subscapular Nerves innervating the Subscapularis, with special reference to the contribution of C7 innervation to the Subscapularis. Thirty-three sides of formalin-fixed upper extremities were dissected to obtain the intact brachial plexus. After immersed in 10% acetic acid for 2 weeks, the upper and Lower Subscapular Nerves innervating the whole Subscapularis, were dissected retrogradely to verify their spinal Nerve origins. The cross-sectional area by C7 innervation and that by the upper trunk innervation was calculated respectively to obtain the constituent percentage of different components in the upper and Lower Subscapular Nerves. In the upper Subscapular Nerve, fascicles of C7 accounted for 0% (interquartile range, 0–1.1%) of cross-sectional area and those of the upper trunk, 100% (98.9–100%). In the Lower Subscapular Nerve, fascicles of C7 accounted for 40.5% (23.5–47.5%) and those of the upper trunk, 59.5% (52.5–76.5%). In total, 18.6% (13.3–27.3%) of fascicles in the Subscapular Nerves innervating the Subscapularis originated from C7, while 81.4% (72.7–86.7%) of those came from the upper trunk. It is confirmed that innervation of the Subscapularis originates from more spinal cord segments than that of infraspinatus and teres minor, and this may be the main reason for which in Erb's palsy, functional recovery of the Subscapularis is often faster than that of lateral rotators of the shoulder, resulting in medial rotation contracture of the shoulder. Clin. Anat., 2013. © 2012 Wiley Periodicals, Inc.
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Semiquantifying of fascicles of the C7 spinal Nerve in the upper and Lower Subscapular Nerves innervating the Subscapularis and its clinical inference in Erb's palsy.
Clinical anatomy (New York N.Y.), 2012Co-Authors: Le-zi Chen, Liang Chen, Yue ZhuAbstract:To elucidate anatomic basis of susceptibility for contracture of the Subscapularis muscle in Erb's palsy of the brachial plexus, we semiquantitatively studied the spinal Nerve origins of the Subscapular Nerves innervating the Subscapularis, with special reference to the contribution of C7 innervation to the Subscapularis. Thirty-three sides of formalin-fixed upper extremities were dissected to obtain the intact brachial plexus. After immersed in 10% acetic acid for 2 weeks, the upper and Lower Subscapular Nerves innervating the whole Subscapularis, were dissected retrogradely to verify their spinal Nerve origins. The cross-sectional area by C7 innervation and that by the upper trunk innervation was calculated respectively to obtain the constituent percentage of different components in the upper and Lower Subscapular Nerves. In the upper Subscapular Nerve, fascicles of C7 accounted for 0% (interquartile range, 0-1.1%) of cross-sectional area and those of the upper trunk, 100% (98.9-100%). In the Lower Subscapular Nerve, fascicles of C7 accounted for 40.5% (23.5-47.5%) and those of the upper trunk, 59.5% (52.5-76.5%). In total, 18.6% (13.3-27.3%) of fascicles in the Subscapular Nerves innervating the Subscapularis originated from C7, while 81.4% (72.7-86.7%) of those came from the upper trunk. It is confirmed that innervation of the Subscapularis originates from more spinal cord segments than that of infraspinatus and teres minor, and this may be the main reason for which in Erb's palsy, functional recovery of the Subscapularis is often faster than that of lateral rotators of the shoulder, resulting in medial rotation contracture of the shoulder.
Shinobu Yamaguchi - One of the best experts on this subject based on the ideXlab platform.
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esra19 0202 efficacy of ultrasound guided pulsed radiofrequency for Lower Subscapular Nerve in patients with persistent chronic shoulder pain after pulsed radiofrequency for suprascapular Nerve
Regional Anesthesia and Pain Medicine, 2019Co-Authors: Shinobu Yamaguchi, Noritaka Yoshimura, Hiroki IidaAbstract:Background and aims Pulsed radiofrequency (PRF) for suprascapular Nerve has been proposed as a therapeutic option in chronic shoulder pain. However, some cases remain pain and limited range of motion after treatment. In the present study, we aimed to assess the efficacy of ultrasound-guided PRF for Lower Subscapular Nerve in patients who complained persisting shoulder pain after PRF for suprascapular Nerve. Methods A total of 15 patients with chronic intractable shoulder pain who did not respond to PRF for suprascapular Nerve underwent ultrasound-guided R-RF treatment for Lower Subscapular Nerve. Radio-frequency needle was inserted to the fascial space between teres major and Subscapularis muscle, PRF was performed 42° C for 360 seconds. Pain intensity was scored using the numeric rating scale (NRS 0–10), and function was measured using simple shoulder test (SST). Results There were 12 women and 3 men. Mean age was 58 years (range, 45–84). Significant decrease in pain (p Conclusions Ultrasound-guided PRF for Lower Subscapular Nerve could be a useful treatment in the patients with intractable persistent shoulder pain and dysfunction which is not improved by PRF for suprascapular Nerve.
Milan Stevanovic - One of the best experts on this subject based on the ideXlab platform.
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Human cadaveric study of Subscapularis muscle innervation and guidelines to prevent denervation
Journal of Shoulder and Elbow Surgery, 2008Co-Authors: James C. Kasper, John M. Itamura, James E. Tibone, Scott L. Levin, Milan StevanovicAbstract:The upper and Lower Subscapular Nerves provide innervation to the Subscapularis muscle. However, the axillary Nerve may provide a significant innervation to the Lower portion of the muscle. The prevalence and patterns of anomalous innervation of the Subscapularis muscle were studied to determine if these variations increased the risk of muscle denervation during open shoulder surgery. Twenty human cadaveric shoulders were dissected, and the innervation to the Subscapularis was defined. The distance from the Nerve insertion to the shoulder joint was measured in neutral and maximal external rotation. In the most common variation, the Lower Subscapular Nerve arose from the axillary Nerve (5 specimens; 25%). Although external rotation of the shoulder brought the Nerve insertion significantly more lateral (35.2 to 16.9 mm, P < .001), the origin of the Nerve had no significant effect on Nerve proximity to the joint. The closeness of the Nerve insertions to the shoulder joint warrants care during an anterior approach to the shoulder and dissections on the anterior surface of the muscle. Subscapularis Nerve damage or denervation may cause unexplained joint instability and Subscapularis dysfunction.
