The Experts below are selected from a list of 15318 Experts worldwide ranked by ideXlab platform
Stanley F Wainapel - One of the best experts on this subject based on the ideXlab platform.
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saphenous nerve injury following medial knee joint injection a case report
Archives of Physical Medicine and Rehabilitation, 2005Co-Authors: Masayuki Iizuka, Stanley F WainapelAbstract:Abstract Iizuka M, Yao R, Wainapel S. Saphenous nerve injury following medial knee joint injection: a case report. Knee joint injection is a procedure commonly performed for pain management of osteoarthritis. Although several techniques have been described, it is usually performed by either medial or lateral approach with the lower limb extended on the Examination Table. We present the case of a patient who developed saphenous neuropathy following knee joint injection via medial approach. The clinical picture suggests that the needle pierced the nerve during the procedure. The patient was moderately obese. This is the first case report in the literature of saphenous nerve injury following medial knee joint injection. Practitioners should be aware of this complication in choosing an approach to the knee joint injection, especially when the patient is obese and the anatomic landmarks are obscured.
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Saphenous Nerve Injury Following Medial Knee Joint Injection: A Case Report
Archives of physical medicine and rehabilitation, 2005Co-Authors: Masayuki Iizuka, Ruijin Yao, Stanley F WainapelAbstract:Knee joint injection is a procedure commonly performed for pain management of osteoarthritis. Although several techniques have been described, it is usually performed by either medial or lateral approach with the lower limb extended on the Examination Table. We present the case of a patient who developed saphenous neuropathy following knee joint injection via medial approach. The clinical picture suggests that the needle pierced the nerve during the procedure. The patient was moderately obese. This is the first case report in the literature of saphenous nerve injury following medial knee joint injection. Practitioners should be aware of this complication in choosing an approach to the knee joint injection, especially when the patient is obese and the anatomic landmarks are obscured.
Rolf Kalff - One of the best experts on this subject based on the ideXlab platform.
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Anesthesia management for spine surgery using spinal navigation in combination with computed tomography.
Anesthesia and analgesia, 2003Co-Authors: H. Fritz, Dietmar Kuehn, Nils Haberland, Rolf KalffAbstract:The development of a spine surgery using neuronavigation with intraoperative computed tomography (CT) is of benefit to the patient. However, the procedure also has a major impact on anesthesia management. During the procedure, the patient remains in the prone position on the CT Examination Table and is moved extensively during CT scans. Furthermore, there is inadequate separation between operating field and anesthetic area. Problems encountered during the procedure were patient positioning, limited patient access, long tubing, and therefore the need for adequate monitoring. We report our experience using this approach in 35 patients with spinal fracture, spinal degeneration, and tumor and describe a step-by-step anesthetic management protocol that has been developed as a guideline for use in spinal neuronavigation with intraoperative CT at our center.
Nils Haberland - One of the best experts on this subject based on the ideXlab platform.
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Anesthesia management for spine surgery using spinal navigation in combination with computed tomography.
Anesthesia and analgesia, 2003Co-Authors: H. Fritz, Dietmar Kuehn, Nils Haberland, Rolf KalffAbstract:The development of a spine surgery using neuronavigation with intraoperative computed tomography (CT) is of benefit to the patient. However, the procedure also has a major impact on anesthesia management. During the procedure, the patient remains in the prone position on the CT Examination Table and is moved extensively during CT scans. Furthermore, there is inadequate separation between operating field and anesthetic area. Problems encountered during the procedure were patient positioning, limited patient access, long tubing, and therefore the need for adequate monitoring. We report our experience using this approach in 35 patients with spinal fracture, spinal degeneration, and tumor and describe a step-by-step anesthetic management protocol that has been developed as a guideline for use in spinal neuronavigation with intraoperative CT at our center.
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Incorporation of intraoperative computerized tomography in a newly developed spinal navigation technique.
Computer aided surgery : official journal of the International Society for Computer Aided Surgery, 2000Co-Authors: Nils Haberland, Kristian Ebmeier, Jan P. Grunewald, Rudolf Hliscs, Rolf-leo KalffAbstract:Objective: We report on the first successful incorporation of intraoperative computerized tomography in spinal navigation procedures.Materials and Methods: All operations were performed with the aid of a Tomoscan M mobile CT system (Philips Medical Systems, Eindhoven, The Netherlands). The system comprises a mobile gantry, a mobile patient Examination Table, and a mobile workstation. Three different navigation systems were used: the EasyGuide (Philips Medical Systems, Eindhoven, The Netherlands), the Surgical Tool Navigator (Zeiss, Oberkochen, Germany), and a prototype of an ultrasound navigation system developed by ourselves (TVS GbR, Chemnitz, Germany). All surgical operations were performed with the patient positioned on the mobile Table of the CT system. Following dorsal preparation of the vertebral region, the surgeon implanted small titanium screws in the vertebrae to serve as fiducial markers. Image data acquisition and image-to-patient registration were performed after implantation of the marker s...
Masayuki Iizuka - One of the best experts on this subject based on the ideXlab platform.
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saphenous nerve injury following medial knee joint injection a case report
Archives of Physical Medicine and Rehabilitation, 2005Co-Authors: Masayuki Iizuka, Stanley F WainapelAbstract:Abstract Iizuka M, Yao R, Wainapel S. Saphenous nerve injury following medial knee joint injection: a case report. Knee joint injection is a procedure commonly performed for pain management of osteoarthritis. Although several techniques have been described, it is usually performed by either medial or lateral approach with the lower limb extended on the Examination Table. We present the case of a patient who developed saphenous neuropathy following knee joint injection via medial approach. The clinical picture suggests that the needle pierced the nerve during the procedure. The patient was moderately obese. This is the first case report in the literature of saphenous nerve injury following medial knee joint injection. Practitioners should be aware of this complication in choosing an approach to the knee joint injection, especially when the patient is obese and the anatomic landmarks are obscured.
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Saphenous Nerve Injury Following Medial Knee Joint Injection: A Case Report
Archives of physical medicine and rehabilitation, 2005Co-Authors: Masayuki Iizuka, Ruijin Yao, Stanley F WainapelAbstract:Knee joint injection is a procedure commonly performed for pain management of osteoarthritis. Although several techniques have been described, it is usually performed by either medial or lateral approach with the lower limb extended on the Examination Table. We present the case of a patient who developed saphenous neuropathy following knee joint injection via medial approach. The clinical picture suggests that the needle pierced the nerve during the procedure. The patient was moderately obese. This is the first case report in the literature of saphenous nerve injury following medial knee joint injection. Practitioners should be aware of this complication in choosing an approach to the knee joint injection, especially when the patient is obese and the anatomic landmarks are obscured.
Hirotsugu Takabatake - One of the best experts on this subject based on the ideXlab platform.
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Medical Imaging: Image-Guided Procedures - Compensation of Electromagnetic tracking system using an optical tracker and its application to bronchoscopy navigation system
Medical Imaging 2007: Visualization and Image-Guided Procedures, 2007Co-Authors: Kensaku Mori, Kazuyoshi Ishitani, Daisuke Deguchi, Takayuki Kitasaka, Yasuhito Suenaga, Hirotsugu Takabatake, Masaki Mori, Hiroshi NatoriAbstract:This paper investigates the utilization of the ultra-tiny electromagnetic tracker (UEMT) in a bronchoscope navigation system. In a bronchoscope navigation system, it is important to track the tip of a bronchoscope or catheter in real time. An ultra-tiny electromagnetic tracker (UEMT), which can be inserted into the working channel of a bronchoscope, allows us to track the tip of a bronchoscope or a catheter in real time. However, the accuracy of such UEMTs can be easily affected by ferromagnetic materials existing around the systems. This research tries to utilize a method for obtaining a function that compensates the outputs of a UEMT in a bronchoscope navigation system using a method proposed by Sato et al. This method uses a special jig combining a UEMT and an optical tracker (OT). Prior to bronchoscope navigation, we sweep this jig around an Examination Table and record outputs of both the UEMT and the OT. By using the outputs of the OT as reference data, we calculate a higher-order polynomial that compensates the UEMT outputs. We applied this method to the bronchoscope navigation system and performed bronchoscope navigation inside a bronchial phantom on the Examination Table. The experimental results showed that this method can reduce the position sensing error from 53.2 mm to 3.5 mm on a conventional Examination Table. Also, by using compensated outputs, it was possible to produce virtual bronchoscopic images synchronized with real bronchoscopic images.
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MICCAI (2) - Bronchoscope tracking without fiducial markers using ultra-tiny electromagnetic tracking system and its evaluation in different environments
Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Inte, 2007Co-Authors: Kensaku Mori, Kazuyoshi Ishitani, Daisuke Deguchi, Takayuki Kitasaka, Yasuhito Suenaga, Yosihnori Hasegawa, Kazuyoshi Imaizumi, Hirotsugu TakabatakeAbstract:This paper presents a method for bronchoscope tracking without any fiducial markers using an ultra-tiny electromagnetic tracker (UEMT) for a bronchoscopy guidance system. The proposed method calculates the transformation matrix, which shows the relationship between the coordinates systems of the pre-operative CT images and the UEMT, by registering bronchial branches segmented from CT images and points measured by the UEMT attached at the tip of a bronchoscope. We dynamically compute the transformation matrix for every pre-defined number of measurements. We applied the proposed method to a bronchial phantom in several experimental environments. The experimental results showed the proposed method can track a bronchoscope camera with about 3.3mm of target registration error (TRE) for wood Table environment and 4.0mm of TRE for Examination Table environment.
