Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California.
JBJS Case Connect. 2023 Aug 17;13(3). doi: 10.2106/JBJS.CC.23.00179. eCollection 2023 Jul 1.
Olecranon fractures treated with proximal ulna plate fixation and repairing the triceps with suture augmentation to the plate decrease the risk of "olecranon escape," but may lead to failure through triceps rupture. In this case report, a rare complication of triceps rupture occurred, and the patient underwent triceps repair.
When fixing olecranon fractures, surgeons should minimize triceps dissection for hardware placement. If subjected to significant force, a surgical insult to the tendon footprint for a better plate contact on the bone and the presence of suture augmentation may change the construct failure mechanism and result in triceps rupture as opposed to fracture redisplacement.
尺骨近端钢板固定治疗尺骨鹰嘴骨折，并通过缝线加强固定修复三头肌，可降低“鹰嘴脱出”的风险，但可能导致三头肌断裂而失效。在本病例报告中，发生了一种罕见的三头肌断裂并发症，患者接受了三头肌修复。
在固定尺骨鹰嘴骨折时，外科医生应尽量减少为放置内固定物而对三头肌进行解剖。如果受到较大的力，手术对肌腱止点的创伤会改变结构失效机制，使缝线加强固定更有利于钢板与骨接触，导致三头肌断裂而非骨折再移位。
