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KEY FACTS
Imaging
Pathology
TERMINOLOGY
Definitions
- Bowstring sign (bowstringing): flexor tendon and sheath pull away from volar aspect of phalanx
- Jersey finger (rugby finger): flexor digitorum profundus (FDP) tendon avulsion; most commonly affects ring finger; results from sudden hyperextension of actively flexed finger (e.g., grabbing opponent's jersey)
- Gamer's thumb/finger (gamer grip, Nintendo thumb, Nintendo-itis, PlayStation thumb, iPod thumb, text messaging syndrome): repetitive injury resulting in pain, swelling, tendinopathy, and tenosynovitis
- Trigger finger: restricted ROM due to thickening of A1 pulley and adjacent tendon and sheath
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Ultrasonographic Findings
Imaging Recommendations
PATHOLOGY
Staging, Grading, & Classification
Relevant Anatomy
Mechanisms of Injury
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
- Rehwald C et al: 3T magnetic resonance imaging of the wrist tendons. Top Magn Reson Imaging. 29(5):221-35, 2020
- Nacey NC et al: Ultrasound imaging of the hand and wrist: fundamentals and new perspectives. Curr Radiol Rep, 4:43, 2016
- Plotkin B et al: MR imaging and US of the wrist tendons. Radiographics. 36(6):1688-700, 2016
- Bayer T et al: Evaluation of finger A3 pulley rupture in the crimp grip position-a magnetic resonance imaging cadaver study. Skeletal Radiol. 44(9):1279-85, 2015
- Korstanje JW et al: Ultrasonographic assessment of flexor tendon mobilization: effect of different protocols on tendon excursion. J Bone Joint Surg Am. 94(5):394-402, 2012
- Nugent N et al: The use of ultrasound in evaluating flexor tendons following surgical repair. Plast Reconstr Surg. 129(2):392e-4e, 2012
- Yeh PC et al: Tendon ruptures: mallet, flexor digitorum profundus. Hand Clin. 28(3):425-30, xi, 2012
- Puippe GD et al: Prospective morphologic and dynamic assessment of deep flexor tendon healing in zone II by high-frequency ultrasound: preliminary experience. AJR Am J Roentgenol. 197(6):W1110-7, 2011
- Lisle DA et al: MR imaging of traumatic and overuse injuries of the wrist and hand in athletes. Magn Reson Imaging Clin N Am. 17(4):639-54, vi, 2009
- Wessely K et al: Ultrasound findings of the locked metacarpophalangeal joint. Skeletal Radiol. 38(1):85-9, 2009
- Guerini H et al: Sonographic appearance of trigger fingers. J Ultrasound Med. 27(10):1407-13, 2008
- Schöffl VR et al: Finger pain in rock climbers: reaching the right differential diagnosis and therapy. J Sports Med Phys Fitness. 47(1):70-8, 2007
- Beredjiklian PK: Biologic aspects of flexor tendon laceration and repair. J Bone Joint Surg Am. 85-A(3):539-50, 2003
- Martinoli C et al: Sonographic evaluation of digital annular pulley tears. Skeletal Radiol 29:387-91, 2000
Related Anatomy
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References
Tables
Tables
KEY FACTS
Imaging
Pathology
TERMINOLOGY
Definitions
- Bowstring sign (bowstringing): flexor tendon and sheath pull away from volar aspect of phalanx
- Jersey finger (rugby finger): flexor digitorum profundus (FDP) tendon avulsion; most commonly affects ring finger; results from sudden hyperextension of actively flexed finger (e.g., grabbing opponent's jersey)
- Gamer's thumb/finger (gamer grip, Nintendo thumb, Nintendo-itis, PlayStation thumb, iPod thumb, text messaging syndrome): repetitive injury resulting in pain, swelling, tendinopathy, and tenosynovitis
- Trigger finger: restricted ROM due to thickening of A1 pulley and adjacent tendon and sheath
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Ultrasonographic Findings
Imaging Recommendations
PATHOLOGY
Staging, Grading, & Classification
Relevant Anatomy
Mechanisms of Injury
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
- Rehwald C et al: 3T magnetic resonance imaging of the wrist tendons. Top Magn Reson Imaging. 29(5):221-35, 2020
- Nacey NC et al: Ultrasound imaging of the hand and wrist: fundamentals and new perspectives. Curr Radiol Rep, 4:43, 2016
- Plotkin B et al: MR imaging and US of the wrist tendons. Radiographics. 36(6):1688-700, 2016
- Bayer T et al: Evaluation of finger A3 pulley rupture in the crimp grip position-a magnetic resonance imaging cadaver study. Skeletal Radiol. 44(9):1279-85, 2015
- Korstanje JW et al: Ultrasonographic assessment of flexor tendon mobilization: effect of different protocols on tendon excursion. J Bone Joint Surg Am. 94(5):394-402, 2012
- Nugent N et al: The use of ultrasound in evaluating flexor tendons following surgical repair. Plast Reconstr Surg. 129(2):392e-4e, 2012
- Yeh PC et al: Tendon ruptures: mallet, flexor digitorum profundus. Hand Clin. 28(3):425-30, xi, 2012
- Puippe GD et al: Prospective morphologic and dynamic assessment of deep flexor tendon healing in zone II by high-frequency ultrasound: preliminary experience. AJR Am J Roentgenol. 197(6):W1110-7, 2011
- Lisle DA et al: MR imaging of traumatic and overuse injuries of the wrist and hand in athletes. Magn Reson Imaging Clin N Am. 17(4):639-54, vi, 2009
- Wessely K et al: Ultrasound findings of the locked metacarpophalangeal joint. Skeletal Radiol. 38(1):85-9, 2009
- Guerini H et al: Sonographic appearance of trigger fingers. J Ultrasound Med. 27(10):1407-13, 2008
- Schöffl VR et al: Finger pain in rock climbers: reaching the right differential diagnosis and therapy. J Sports Med Phys Fitness. 47(1):70-8, 2007
- Beredjiklian PK: Biologic aspects of flexor tendon laceration and repair. J Bone Joint Surg Am. 85-A(3):539-50, 2003
- Martinoli C et al: Sonographic evaluation of digital annular pulley tears. Skeletal Radiol 29:387-91, 2000
