Five-Years Trigger Finger Due to Partial Flexor Tendon Laceration in a Child

Abstract

Trigger finger (TF) is a condition that affects quality of life and one of the most common causes of hand pain and disability. TF is characterized by catching, snapping or locking of the involved finger flexor tendon, associated with pain. TF in the children occurs rarely than in adults and partial tendon laceration is an uncommon cause of TF in the children. Thus, our aim in this study to define TF due to partial flexor tendon laceration in a child.

Ultrasonographic Evaluation of Zone II Partial Flexor Tendon Lacerations of the Fingers: A Cadaveric Study

“…6 Additional complications include triggering symptoms caused by catching between the lacerated tendon stump and the pulley system. [7][8][9] These clinical observations are mechanistically supported by laboratory studies. In a human cadaveric model, flexor tendons with 50% and 75% lacerations maintained ultimate failure loads of 194 and 101 N, respectively.…”

“…16 Correctly diagnosing high-grade partial flexor tendon lacerations with greater than 50% to 60% of tendon involvement is clinically important, as neglect may lead to sequelae that include progression to full rupture, triggering and catching symptoms, poor tendon gliding, and adhesions; each of these has the potential to negatively affect overall hand function. [6][7][8][10][11][12] Currently, no reference standard imaging study exists. An optimal imaging study for this application must address several criteria: (1) accessibility and availability in both the emergency department and clinic settings, (2) high sensitivity, (3) ideally high specificity, (4) low cost, (5) minimal time required for testing, and (6) minimal to no contraindications (in reference to MRI with respect to implanted pacemakers, spinal cord stimulators, and others).…”

“…Furthermore, these injuries are currently difficult to assess accurately short of performing exploratory surgery to directly visualize the tendon, a procedure that has been shown to be accurate . Correctly diagnosing high‐grade partial flexor tendon lacerations with greater than 50% to 60% of tendon involvement is clinically important, as neglect may lead to sequelae that include progression to full rupture, triggering and catching symptoms, poor tendon gliding, and adhesions; each of these has the potential to negatively affect overall hand function …”

“…If left undiagnosed or unrepaired, high‐grade partial flexor tendon lacerations may progress to complete ruptures, resulting in substantial loss of function and grip strength . Additional complications include triggering symptoms caused by catching between the lacerated tendon stump and the pulley system . These clinical observations are mechanistically supported by laboratory studies.…”

Partial tendon tear as unusual cause of trigger finger: a case report

“…Post-traumatic trigger finger is a rare case of resistant trigger finger that can be suspected recording an accurate clinical history and in case of resistant trigger finger after anti-inflammatory drugs therapy and steroid injection. [ 2–6 ].…”