ABSTRACT
OBJECTIVES@#The purpose of this study was to determine the accuracy and reproducibility of image intensifier (fluoroscopic) measurements of gap and step-off displacements on the articular surface of the distal radius using a standard cadaver osteotomy fracture model.@*METHODS@#Fourteen orthopedic residents were randomly assigned using the fish bowl method to measure the gap and step-off displacements in cadaveric fluoroscopic images using a digital caliper. Each physician was randomly assigned the images where they examined the images twice and the average taken using a standard technique. The interobserver and intra-observer reliability were calculated using the intraclass correlation coefficient (ICC). Rank Sum test was used to evaluate the validity of measurements.@*RESULTS@#The results of the study showed that there was no significant difference between the cadaveric and measured step-off and gap displacements. Intraclass correlation coefficient scores showed moderate (0.41) to perfect (1.0) agreement.@*CONCLUSION@#The study showed that fluoroscopy can aid in the interpretation of gap and step-off displacements in acute distal radius fractures.
ABSTRACT
A 30‑year‑old male presented with diplopia for 20 days post occupational accident involving left side of his nose, while he was working with a nail gun. He was fully conscious and did not have any neurological deficits. Patient narrated the mechanism of injury and was sure that the nail fell down after hitting the left side of his nose. He had normal vision, but extra ocular movements were restricted and painful. Computed tomography (CT) scan revealed a curved metal object lodged in the posterior aspect of the left orbit extending diagonally from medial wall to the anterior‑superior aspect of the orbital roof. The object was removed via a small surgical approach, inflicting least possible surgical trauma. Post surgery, the patient recovered with complete resolution of diplopia. The original aspects of this case are the lack of signs of a foreign body entry and its relative harmlessness in spite of its large size.
ABSTRACT
PURPOSE: To measure the annual radiation exposure of staff in the orthopaedic surgical room. MATERIALS AND METHODS: From January 2010 to December 2010, we measured the radiation exposure of a tumor surgeon, spine surgeon, trauma surgeon, six residents, and six scrub nurses. Radiation was monitored with the use of thermoluminescent dosimeters placed on the chest under the lead apron. The annual dose of radiation exposure was compared to the maximum yearly permissible dose (20 mSv). During the study period, the trauma surgeon made a deliberate effort to minimize the radiation time and maintain a distance of 1 m from the image intensifier. RESULTS: The annual exposure levels were 0.04 mSv (radiation time, 34 min 50 s), 0.08 mSv (151 min 46 s), and 0.12 mSv (135 min 27 s) for the tumor surgeon, trauma surgeon, and spine surgeon, respectively. The mean exposure was 0.0146 mSv (range, 0.4~0.39 mSv) for the residents and 0.06 mSv (range, 0.04~0.13 mSv) for the scrub nurses. Overall, the annual radiation exposure was 0.2~1.95% of the maximal yearly permissible dose. Despite the longer period of radiation exposure, the trauma surgeon was exposed to a lower dose of radiation than the spine surgeon. CONCLUSION: The annual radiation exposure of a trauma surgeon can be reduced by a deliberate effort to decrease exposure time and maintain a distance of at least 1 m from the image intensifier.
Subject(s)
Operating Rooms , Spine , ThoraxABSTRACT
Osteoid osteoma is a relatively common benign osteogenic tumor that mainly occurs in children and young adults. The common curative treatment involves an en bloc surgical excision of the nidus. Because intraoperative localization of a small bone lesion can be difficult, surgical removal of the tumor often necessitates significant bone resection and soft tissue damage. The authors treated a case of osteoid osteoma involving the proximal femur by image intensifier guided percutaneous ablation with a cannulated screw and believe the technique simple, minimally invasive and safe for the treatment of osteoid osteoma.