Slätis P, Karaharju E O
Clin Orthop Relat Res. 1980 Sep(151):73-80.
Biomechanical experiments have shown high stability and load acceptance of the pelvis if the external device is mounted as a trapezoid compression frame. Clinical results in 22 patients with double vertical pelvic fractures illustrate the reduction of displaced pelvic fractures and the mounting of the frame. Reduction is obtained under general anesthesia within two days of the trauma. The external compression frame affords noteworthy relief of pain in all patients and greatly facilitates nursing. The patients were verticalized three weeks later and the frame removed six weeks after its applcation. There was one death. The early stabilization of the pelvis and consequently controlled hemorrhage may have contributed to the low mortality. At follow-up, the radiographic result was graded as excellent in 15 cases, good in four cases and poor in two cases. Impaired gait was recorded in two patients and persistent low back pain in one. The trapezoid compression frame is applied as soon as possible after admission of all patients with severely unstable pelvic fractures.
生物力学实验表明，如果将外部装置安装为梯形加压框架，骨盆具有较高的稳定性和负荷承受能力。22例双侧垂直骨盆骨折患者的临床结果表明，移位骨盆骨折得到了复位，且框架得以安装。在创伤后两天内，于全身麻醉下进行复位。外部加压框架使所有患者的疼痛得到显著缓解，并极大地方便了护理。三周后患者可直立，框架在应用六周后拆除。有1例死亡。骨盆的早期稳定以及由此控制的出血可能是导致低死亡率的原因。随访时，影像学结果15例为优，4例为良，2例为差。2例患者记录有步态障碍，1例有持续的下腰痛。对于所有严重不稳定骨盆骨折患者，入院后应尽快应用梯形加压框架。
