Alnaif N, Alrobaiea S, Azzi Alain J, Thibaudeau S, Martin M H
Division of Plastic and Reconstructive Surgery, McGill University Health Centre, 1650 Cedar Avenue, Room L9.317, Montreal, Quebec, H3G 1A4, Canada.
Division of Plastic and Reconstructive Surgery, Security Forces Hospital, Riyadh, Saudi Arabia.
Skeletal Radiol. 2018 Sep;47(9):1289-1292. doi: 10.1007/s00256-018-2901-0. Epub 2018 Mar 7.
Isolated avulsion fracture of the extensor carpi radialis longus (ECRL) tendon is a rare and poorly understood injury. We present a unique case of a 45-year-old male who fell on his flexed right hand. He presented with a subtle but extremely painful mass on the dorsum of his wrist. Ultrasound (U/S) imaging of the mass revealed an avulsed bone fragment attached to the ECRL tendon, confirming the clinical suspicion of an ECRL avulsion injury. Computed tomography and magnetic resonance imaging are well-documented imaging modalities to detect tendon avulsions. As demonstrated by this case report, U/S is an excellent diagnostic tool for ECRL rupture, a cost-effective alternative that provides real-time dynamic examination of hand injuries. To our knowledge, this is the first case of ECRL avulsion diagnosed by U/S. The purpose of this case report is to educate the reader on detection and diagnosis of ECRL tendon avulsion using U/S, a time-efficient and cost-effective imaging modality that is infrequently used for this purpose.
桡侧腕长伸肌（ECRL）肌腱孤立性撕脱骨折是一种罕见且了解甚少的损伤。我们报告一例独特病例，一名45岁男性，右手屈曲位摔倒。他的腕背部出现一个细微但极其疼痛的肿块。对该肿块进行超声（U/S）成像显示，一块撕脱的骨碎片附着于ECRL肌腱，证实了临床对ECRL撕脱伤的怀疑。计算机断层扫描和磁共振成像为检测肌腱撕脱的常用成像方式。如本病例报告所示，超声是诊断ECRL断裂的优秀工具，是一种经济高效的替代方法，可对手部损伤进行实时动态检查。据我们所知，这是首例通过超声诊断的ECRL撕脱病例。本病例报告的目的是让读者了解如何使用超声检测和诊断ECRL肌腱撕脱，超声是一种省时且经济高效的成像方式，但很少用于此目的。
