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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

From: Sonographic follow-up after endoscopic carpal tunnel release for severe carpal tunnel syndrome: a one-year neuroanatomical prospective observational study

Fig. 2

High frequency ultrasonic imaging of carpal tunnel from right hand of a 48-year-old man with severe CTS. The long axis figures of median nerve were showed in left column. The white arrow indicated the median nerve at the distal end of the carpal tunnel, and the yellow arrow indicated the median nerve at the proximal end of the carpal tunnel. Between the both yellow arrow was the edema length (EL) of median nerve. The red arrow pointed at the compression site. Representative figures on the short axis plane at the inlet of the carpal tunnel (the level of distal wrist crease) were showed in the right column. The cross-sectional area (CSA) of the median nerve was delineated by dashed line and the values were showed on the right side. The anteroposterior diameter (D) of median nerve was showed by blue double arrow line. P and S indicated pisiform and scaphoid separately. Pre-op: 3 days pre-surgery; W2: 2 weeks post-surgery; M3: 3 months post-surgery; M6: 6 months post-surgery; M12: 12 months post-surgery

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