title: Isolated A1 Pulley Rupture of Left Fourth Finger in Kendo Players: Two Case Reports.
abstract: Annular pulley injury of fingers is usually observed in rock climbers who support their entire body weight with flexed fingers during climbing. But these lesions can also follow trivial trauma, such as lifting heavy objects with the fingertips, or during sports and recreational activities. The A2 and A4 pulleys are most usually involved and reported most frequently. However, traumatic A1 pulley rupture has not been reported yet, to the best of our knowledge. Kendo is a very vigorous martial art with frequent physical contact. Therefore, we reported two cases of repetitive microtraumatic left fourth finger A1 pulley rupture in Kendo players with results from physical examination and imaging studies, such as ultrasonography and magnetic resonance imaging, together with related literature.
authors.affiliation: Department of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Jin Hyung
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Hyoung Seop
authors.initials: HS
authors.lastname: Kim
authors.affiliation: Department of Diagnostic Radiology, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
authors.forename: Seung Ho
authors.initials: SH
authors.lastname: Joo
keywords: Athletic injuries; Finger injuries; Ultrasonography