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Radiocarpal Articular Pressures during the Reduction of Distal Radius Fractures

par Schuind, Frederic ;Fabeck, Laurent ;Burny, Franz Léon ;Cantraine, Francis
Référence Journal of orthopaedic trauma, 11, 4, page (295-299)
Publication Publié, 1997-05

Article révisé par les pairs

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Résumé :

Objectives: To measure in vivo radiocarpal articular pressures during closed reduction and external fixation of distal radius fractures. Design: Intraoperative measurements using a sterile pressure-sensitive sensor specially constructed for this application. Setting and Patients: 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. Main Outcome Measurements and Results: 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. Conclusions and clinical relevance: 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.