ANATOMICAL RELATIONSHIPS OF THE TRANSVERSE CARPAL LIGAMENT WITH THE MEDIAN NERVE AND THE SUPERFICIAL PALMAR ARCH

Tuyền Lê Quang, Vân Nguyễn Thanh, Huy Nguyễn Tiến, Lâm Nguyễn Vũ Quang

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Abstract

Objective: To describe the anatomical relationships of the TCL with the median nerve, the recurrent branch of the median nerve, and the superficial palmar arch in adult Vietnamese cadavers. Subjects and methods: A descriptive cross-sectional study was conducted on 16 fresh adult Vietnamese cadavers preserved through cold storage. Results: The distance from the median nerve to the scaphoid tubercle and the trapezium tubercle was 14.6 ± 2.2 mm and 12.0 ± 2.3 mm, respectively. The depth from the TCL to the median nerve at the proximal, mid, and distal borders of the TCL measured 1.6 ± 0.4 mm, 1.9 ± 0.3 mm, and 2.3 ± 0.3 mm, respectively. The study recorded that 100% of the recurrent branches of the median nerve originated below the distal border of the TCL and lay outside a longitudinal line, projecting towards the thenar eminence. The distance from the distal border of the TCL to the superficial palmar arch along a longitudinal line was 25.0 ± 4.3 mm. Conclusion: Our study provides valuable insights into the anatomical relationships of the TCL with the median nerve and the superficial palmar arch. These findings may help reduce specific complications during carpal tunnel release surgery.

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References

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