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Trigger finger caused by an old partial flexor tendon laceration: a case report.
Masahiko Tohyama1, Tadao Tsujio, Ikuhisa Yanagida
1Department of Orthopaedic Surgery, Baba Memorial Hospital, Sakai 592-8341, Japan. m-tohyama@k5.dion.ne.jp
Summary
This case study details a rare instance of trigger finger resulting from a prior flexor digitorum superficialis tendon injury. Surgical release of the A1 pulley successfully resolved the triggering, with no reported recurrence.
Area of Science:
- Hand Surgery
- Orthopedics
- Musculoskeletal System
Background:
- Trigger finger, or stenosing tenosynovitis, commonly affects the flexor tendons of the hand.
- Injuries to the flexor tendons can lead to secondary complications, including triggering.
- Delayed presentation of trigger finger following tendon injury is infrequently documented.
Observation:
- A patient presented with trigger finger symptoms five months after sustaining a partial laceration to the flexor digitorum superficialis tendon.
- This represents the latest documented onset of trigger finger post-tendon injury in medical literature.
- The triggering was attributed to the sequelae of the old partial flexor digitorum superficialis laceration.
Findings:
- The patient underwent surgical management involving A1 pulley release.
- The flexor tendon flap was trimmed and sutured.
- Post-operatively, the patient experienced complete resolution of triggering symptoms.
Implications:
- This case highlights the potential for delayed trigger finger development after flexor tendon injuries.
- Surgical intervention, including A1 pulley release, is effective for managing this rare presentation.
- Understanding the link between tendon injury and delayed triggering can improve diagnostic and treatment approaches in hand surgery.