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Papers by Hans-Walter Staudte

Research paper thumbnail of Die innere Mechanik der Muskulatur, theoretische Untersuchung normaler und atrophischer Muskeln

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1981

Research paper thumbnail of Histochemische, dynamometrische und muskelmechanische Untersuchungen zur arthrogenen Muskelatrophie

Research paper thumbnail of Zehn-Jahres-Verlauf nach zervikaler Laminektomie C3 - C7 wegen eines intramedullären Astrocytoms Grad I

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1993

Research paper thumbnail of Beiträge zum Feinbau der Blutgefäße von Invertebraten: I. Mitteilung: Die Ultrastruktur des Sinus lateralis von Hirudo medicinalis L

Research paper thumbnail of Untersuchungen zur präoperativen Hautdesinfektion bei Eingriffen am Hüftgelenk

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1988

Research paper thumbnail of A New Approach Towards Robot-Assisted Orthopedic Surgery Based on Human Factor Analysis

Research paper thumbnail of Das Osteoidosteom der Wirbelsäule

Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren, 1991

Research paper thumbnail of Bemerkungen zu der Arbeit von H. W. Staudte und B. Breikmann: „Die thermische Aufbereitung von homologen Knochentransplantaten für die Knochenbank als zusätzliche Sicherheit zur Aids-Prophylaxe“ und Erwiderung zur Stellungnahme

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1992

Research paper thumbnail of Die thermische Aufbereitung von homologen Knochentransplantaten für die Knochenbank als zusätzliche Sicherheit zur Aids-Prophylaxe

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1991

Research paper thumbnail of CRIGOS: a compact robot for image-guided orthopedic surgery

IEEE Transactions on Information Technology in Biomedicine, 1999

The CRIGOS (compact robot for image-guided orthopedic surgery) project was set up for the develop... more The CRIGOS (compact robot for image-guided orthopedic surgery) project was set up for the development of a compact surgical robot system for image-guided orthopedic surgery based on user requirements. The modular system comprises a compact parallel robot and a software system for planning of the surgical interventions and for supervision of the robotic device. Because it is not sufficient to consider only technical aspects in order to improve in clinical routine the therapeutic outcome of conventional interventions, a user-centered and taskoriented design process has been developed which also takes human factors into account. The design process for the CRI-GOS system was started from requirement analysis of various orthopedic interventions using information gathered from literature, questionnaires, and workshops with domain experts. This resulted in identification of conventional interventions for which the robotic system would improve the medical and procedural quality. A system design concept has been elaborated which includes definitions of components, functionalities, and interfaces. Approaches to the acquisition of calibrated X-rays will be presented in the paper together with design and evaluation of a first human-computer interface. Finally, the first labtype parallel robot based on low-cost standard components is presented together with the first evaluation results concerning positioning accuracy.

Research paper thumbnail of Studies on the fine structure of invertebrate blood vessels

Cell and Tissue Research, 1976

The position, structure and function of the valves within the lateral sinus of the medical leech,... more The position, structure and function of the valves within the lateral sinus of the medical leech, Hirudo medicinalis, are described on the basis of vital, light-and electron microscopy, In this species the valvular apparatus consists of multiple elongated fir cone-shaped fibrous villi surrounding the orifices of the latero-lateral and latero-dorsal vessel like a tentacular crest. Each villus is covered by a thin sheet of a continuous endothelium. The valves prevent the backflow of hemolymph during systolic contraction of the lateral sinus.

Research paper thumbnail of 33 Computer-Integrated Orthopaedic Surgery: Connection of Planning and Execution in Surgical Intervention

… Technology and Clinical …, 1996

Research paper thumbnail of Computer assisted orthopaedic surgery with image based individual templates

Clinical Orthopaedics and Related Research, 1998

Recent developments in computer assisted surgery offer promising solutions for the translation of... more Recent developments in computer assisted surgery offer promising solutions for the translation of the high accuracy of the preoperative imaging and planning into precise intraoperative surgery. Broad clinical application is hindered by high costs, additional time during intervention, problems of intraoperative man and machine interaction, and the spatially constrained arrangement of additional equipment within the operating theater. An alternative technique for computerized tomographic image based preoperative three-dimensional planning and precise surgery on bone structures using individual templates has been developed. For the preoperative customization of these mechanical tool guides, a desktop computer controlled milling device is used as a three-dimensional printer to mold the shape of small reference areas of the bone surface automatically into the body of the template. Thus, the planned position and orientation of the tool guide in spatial relation to bone is stored in a structural way and can be reproduced intraoperatively by adjusting the position of the customized contact faces of the template until the location of exact fit to the bone is found. No additional computerized equipment or time is needed during surgery. The feasibility of this approach has been shown in spine, hip, and knee surgery, and it has been applied clinically for pelvic repositioning osteotomies in acetabular dysplasia therapy.

Research paper thumbnail of Die innere Mechanik der Muskulatur, theoretische Untersuchung normaler und atrophischer Muskeln

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1981

Research paper thumbnail of Histochemische, dynamometrische und muskelmechanische Untersuchungen zur arthrogenen Muskelatrophie

Research paper thumbnail of Zehn-Jahres-Verlauf nach zervikaler Laminektomie C3 - C7 wegen eines intramedullären Astrocytoms Grad I

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1993

Research paper thumbnail of Beiträge zum Feinbau der Blutgefäße von Invertebraten: I. Mitteilung: Die Ultrastruktur des Sinus lateralis von Hirudo medicinalis L

Research paper thumbnail of Untersuchungen zur präoperativen Hautdesinfektion bei Eingriffen am Hüftgelenk

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1988

Research paper thumbnail of A New Approach Towards Robot-Assisted Orthopedic Surgery Based on Human Factor Analysis

Research paper thumbnail of Das Osteoidosteom der Wirbelsäule

Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren, 1991

Research paper thumbnail of Bemerkungen zu der Arbeit von H. W. Staudte und B. Breikmann: „Die thermische Aufbereitung von homologen Knochentransplantaten für die Knochenbank als zusätzliche Sicherheit zur Aids-Prophylaxe“ und Erwiderung zur Stellungnahme

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1992

Research paper thumbnail of Die thermische Aufbereitung von homologen Knochentransplantaten für die Knochenbank als zusätzliche Sicherheit zur Aids-Prophylaxe

Zeitschrift Fur Orthopadie Und Unfallchirurgie, 1991

Research paper thumbnail of CRIGOS: a compact robot for image-guided orthopedic surgery

IEEE Transactions on Information Technology in Biomedicine, 1999

The CRIGOS (compact robot for image-guided orthopedic surgery) project was set up for the develop... more The CRIGOS (compact robot for image-guided orthopedic surgery) project was set up for the development of a compact surgical robot system for image-guided orthopedic surgery based on user requirements. The modular system comprises a compact parallel robot and a software system for planning of the surgical interventions and for supervision of the robotic device. Because it is not sufficient to consider only technical aspects in order to improve in clinical routine the therapeutic outcome of conventional interventions, a user-centered and taskoriented design process has been developed which also takes human factors into account. The design process for the CRI-GOS system was started from requirement analysis of various orthopedic interventions using information gathered from literature, questionnaires, and workshops with domain experts. This resulted in identification of conventional interventions for which the robotic system would improve the medical and procedural quality. A system design concept has been elaborated which includes definitions of components, functionalities, and interfaces. Approaches to the acquisition of calibrated X-rays will be presented in the paper together with design and evaluation of a first human-computer interface. Finally, the first labtype parallel robot based on low-cost standard components is presented together with the first evaluation results concerning positioning accuracy.

Research paper thumbnail of Studies on the fine structure of invertebrate blood vessels

Cell and Tissue Research, 1976

The position, structure and function of the valves within the lateral sinus of the medical leech,... more The position, structure and function of the valves within the lateral sinus of the medical leech, Hirudo medicinalis, are described on the basis of vital, light-and electron microscopy, In this species the valvular apparatus consists of multiple elongated fir cone-shaped fibrous villi surrounding the orifices of the latero-lateral and latero-dorsal vessel like a tentacular crest. Each villus is covered by a thin sheet of a continuous endothelium. The valves prevent the backflow of hemolymph during systolic contraction of the lateral sinus.

Research paper thumbnail of 33 Computer-Integrated Orthopaedic Surgery: Connection of Planning and Execution in Surgical Intervention

… Technology and Clinical …, 1996

Research paper thumbnail of Computer assisted orthopaedic surgery with image based individual templates

Clinical Orthopaedics and Related Research, 1998

Recent developments in computer assisted surgery offer promising solutions for the translation of... more Recent developments in computer assisted surgery offer promising solutions for the translation of the high accuracy of the preoperative imaging and planning into precise intraoperative surgery. Broad clinical application is hindered by high costs, additional time during intervention, problems of intraoperative man and machine interaction, and the spatially constrained arrangement of additional equipment within the operating theater. An alternative technique for computerized tomographic image based preoperative three-dimensional planning and precise surgery on bone structures using individual templates has been developed. For the preoperative customization of these mechanical tool guides, a desktop computer controlled milling device is used as a three-dimensional printer to mold the shape of small reference areas of the bone surface automatically into the body of the template. Thus, the planned position and orientation of the tool guide in spatial relation to bone is stored in a structural way and can be reproduced intraoperatively by adjusting the position of the customized contact faces of the template until the location of exact fit to the bone is found. No additional computerized equipment or time is needed during surgery. The feasibility of this approach has been shown in spine, hip, and knee surgery, and it has been applied clinically for pelvic repositioning osteotomies in acetabular dysplasia therapy.