Schuind F A, Cantraine F R, Fabeck L, Burny F
Department of Orthopaedics, Cliniques Unviersitaires de Bruxelles, Université libre de Bruixelles, Hôpital Erasme, Belgium.
J Orthop Trauma. 1997 May;11(4):295-9. doi: 10.1097/00005131-199705000-00013.
To measure in vivo radiocarpal articular pressures during closed reduction and external fixation of distal radius fractures.
Intraoperative measurements using a sterile pressure sensitive sensor specially constructed for this application.
Ten patients with a closed distal radius fracture stabilized by radiometacarpal external fixation. Radiocarpal pressures measured during transarticular distraction, wrist palmar flexion, wrist ulnar inclination, and fracture reduction.
Transarticular distraction resulted in a substantial decrease of the articular pressure, averaging -158.1 mmHg. Palmar flexion resulted in a mean pressure increase of 91.8 mmHg. The reduction of the fracture using a combination of distraction, palmar flexion and ulnar deviation resulted in either an increase or decrease of articular pressure, but always with a tendency toward progressive normalization of the pressure, with a mean slope of 3.2 mmHg/min.
The phenomena leading to the reduction of distal radius fractures could be related in part to a decrease of the intraarticular pressure, which may be responsible for a suction effect on the intraarticular bone fragments.
测量桡骨远端骨折闭合复位及外固定过程中的腕关节内压力。
术中使用专门为此应用构建的无菌压敏传感器进行测量。
10例闭合性桡骨远端骨折患者，采用桡掌骨外固定进行固定。在经关节牵张、腕关节掌屈、腕关节尺偏及骨折复位过程中测量腕关节压力。
经关节牵张导致关节压力大幅下降，平均为-158.1 mmHg。掌屈导致平均压力升高91.8 mmHg。通过牵张、掌屈和尺偏相结合的方式进行骨折复位，导致关节压力升高或降低，但压力始终有逐渐恢复正常的趋势，平均斜率为3.2 mmHg/分钟。
导致桡骨远端骨折复位的现象可能部分与关节内压力降低有关，这可能对关节内骨碎片产生吸力作用。
