Trigger finger following partial flexor tendon laceration: Magnetic resonance imaging-assisted diagnosis
Jose Couceiro1, Javier Fraga1, Marcos Sanmartin1
1Hand Surgery Unit, Orthopaedics Department, POVISA Hospital, Calle Salamanca, 5, 36211 Vigo, Spain.
Introduction:
Post-traumatic trigger finger is considerably rarer than normal trigger finger. The diagnosis is usually made on a clinical basis. This can be obscured; however, by concurrent pathological conditions. We report a case of post-traumatic trigger finger in which diagnosis was aided by magnetic resonance imaging (MRI).
Presentation Of Case:
Our patient is a 32-year-old male who had a previous laceration with a subsequent surgery for infectious tenosynovitis. The MRI showed the impinging tendon tag. Surgical excision of the tag successfully solved the case.
Discussion:
The use of imaging studies for the diagnosis of post-traumatic trigger finger has been previously reported, the authors described a variation on the contour of the pulley system. The full lacerated tendon tag can be seen on our patient's MRI.
Conclusion:
On this case, the use of MRI was a useful aid for the differential diagnosis of post-traumattic trigger finger.
