Chappell CD, et al.
Sonographic changes in median nerve cross-sectional area following microinvasive ultrasound guided carpal tunnel release. J Ultrasound Med 2020;39: 693-702.
To determine the changes in proximal carpal tunnel median nerve cross-sectional area (CSA) in a consecutive group of patients following carpal tunnel release using the SX-One MicroKnife® and ultrasound guidance.
Report of 37 wrists in 23 consecutive patients treated with CTR using the SX-One MicroKnife and ultrasound guidance. All procedures were performed in an office procedure room using only local anesthesia (WALANT). No complications occurred. The authors reported statistically significant reductions in median nerve cross-sectional area, as well as statistically and clinically significant improvements in BCTQ scores at 6-10 weeks post-release. Although the primary endpoint of the study was the change in median nerve cross sectional area at 6-10 weeks, statistically significant reductions in nerve CSA and BCTQ scores were also observed as early as 2-4 weeks post-release.
CTR with ultrasound guidance performed in the office setting using the SX-One MicroKnife is safe and effective and reduces median nerve swelling in the early post-operative period.