Letts M, Smallman T, Afanasiev R, Gouw G
J Pediatr Orthop. 1986 Jan-Feb;6(1):40-6. doi: 10.1097/01241398-198601000-00009.
Stress fracture of the pars interarticularis is an increasing cause of disability in highly competitive adolescent athletes. We have documented this lesion in 14 adolescent athletes engaged in repetitive training and competition exercises involving flexion/extension of the lumbar spine. An in vivo spinal muscle torque study in 11 normal adolescent girls also revealed mean torque values of 22.6 Nm for left lateral flexion and 27.4 Nm for hyperextension. The most common sports resulting in this lesion were gymnastics and hockey. In four patients the lesion was bilateral, and in 10 it was unilateral. Five of the unilateral lesions went on to heal with immobilization in a thoracolumbar spinal orthoses; however, none of the four bilateral lesions or the remaining five unilateral lesions healed in spite of 3 months of immobilization.
关节突应力性骨折在竞争激烈的青少年运动员中导致残疾的情况日益增多。我们记录了14名从事涉及腰椎屈伸的重复性训练和竞赛运动的青少年运动员的这一损伤情况。对11名正常青少年女孩进行的一项活体脊柱肌肉扭矩研究还显示，左侧侧屈的平均扭矩值为22.6牛米，过伸的平均扭矩值为27.4牛米。导致这一损伤的最常见运动项目是体操和曲棍球。4例患者的损伤为双侧性，10例为单侧性。5例单侧损伤通过胸腰椎脊柱矫形器固定后愈合；然而，尽管进行了3个月的固定，4例双侧损伤和其余5例单侧损伤均未愈合。
