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Fig. 3 | Journal of Orthopaedic Surgery and Research

Fig. 3

From: A1 pulley cutting potential and safety of three ultrasound-guided percutaneous A1 pulley release techniques for trigger finger: a cadaveric study

Fig. 3

Needle technique. (a) Inserting a 21 G needle under ultrasound guidance with a stick probe. (b) Ultrasound image identifying the needle penetrating the deepest most distal part of the A1 pulley. MH: metacarpal head. PPh: proximal phalanx. The arrowheads indicate the A1 pulley. The arrow indicates the needle. The asterisks indicate the flexor tendons

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X