Journal of orthopaedic trauma
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Comparative Study
Hematoma block for ankle fractures: a safe and efficacious technique for manipulations.
The purpose of this study was to examine the safety and efficacy of the hematoma block technique for closed ankle fracture manipulation. Twenty-three patients received a hematoma block with or without supplemental analgesia and/or sedation for the manipulative reduction of an ankle fracture, and 37 patients received parenteral agents alone. At an average of 12 months post-reduction, patients were administered a questionnaire concerning their level of discomfort surrounding the manipulation of their acute injury. ⋯ In addition, the hematoma block procedure resulted in no associated complications. The results of this study led us to conclude that the hematoma block with or without supplemental analgesia for the manipulation of ankle fractures was safe and effective and is a useful technique. This is particularly true in those patients in whom an adequate dosage of parenteral medication is contraindicated or unsafe.
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This study examines the risk of injury to medial soft-tissue structures during the fixation of calcaneal fractures performed through a lateral approach. An L-shaped lateral incision was performed on 10 fresh cadaver feet. The calcaneus was divided into three zones for study. ⋯ Wires placed in the subchondral bone of the posterior facet or anterior to the critical angle of Gissane were determined to be at high risk of injury to the medial soft tissues. Structures at risk included the medial and lateral plantar nerves and vessels and the flexor hallucis longus tendon. Caution should be exercised when inserting K-wires, drills, and screws into high-risk areas to avoid iatrogenic injury to the medial structures.
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An instrumented traction post was used to determine the magnitude and direction of the countertraction force applied to the perineum of 15 awake volunteers for a series of 12 positions used in fracture surgery and compared with their corresponding neutral position controls. The results demonstrated that adduction of the affected limb and abduction of the contralateral limb applied the greatest force to the perineum with ipsilateral and contralateral placement of the fracture post. These two maneuvers increased the perineal countertraction force 80% above their respective neutral readings. ⋯ Internal and external rotation of the affected limb had no effect on the perineal countertraction force for either placement of the post. There was a significant decrease in the perineal forces for the neutral positions after adduction of the affected limb and abduction of the contralateral limb with ipsilateral placement of the post, indicating that the volunteers shifted on the fracture table in response to pain. There was no significant difference in the direction of the countertraction force for the various positions.(ABSTRACT TRUNCATED AT 250 WORDS)