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  • 1
    Electronic Resource
    Electronic Resource
    Contrast improvement using color-coded radiographs of anatomic specimens (1995)
    Springer
    Surgical and radiologic anatomy 17 (1995), S. 325-327 
    Details
    ISSN: 1279-8517
    Keywords: Radiographs ; Colorcoding ; Monochromatic MoK α-radiation ; Intervertebral disc ; Chemonucleolysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les radiographies sont largement utilisées dans le domaine de la pathologie ostéo-articulaire. Des procédés spéciaux peuvent être utilisés pour améliorer la qualité de l'image. Nous rapportons une nouvelle technique radiographique qui utilise un rayonnement monochromatique de molybdène Kα associée à un codage couleur digital secondaire pour obtenir des images bien contrastées. Afin d'évaluer l'apport diagnostique de cette technique, des specimens de disques intervertébraux de cadavres ayant fait l'objet d'une chimio-nucléolyse par injection de chymopapaine ont été étudiés. Les radiographies des specimens réalisés avec un tube à rayons X avec anode en molybdène et un filtre de zirconium ont fait l'objet d'un traitement informatique et d'un codage couleur. Cette technique améliore la résolution et le contraste des images et ainsi l'analyse des modifications morphologiques.
    Notes: Summary Radiographs are used in a wide variety of musculoskeletal examinations. Special procedures are required to improve image quality. We report a new radiologic technique that uses monochromatic molybdenumK α-radiation together with secondary digital color-coding to produce well contrasted images of supporting tissue. In order to investigate the diagnostic capability of this approach we studied specimens of the intervertebral disc, harvested from cadavers undergoing chemonucleolysis following an injection of chymopapain. Radiographs of the specimen taken using a Mo X-ray tube with a zirconium filter were scanned into a computerised image-processing system and color-coded. This method improves resolution and contrast in the images and allows the differentiation of morphologic changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01795191
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  • 2
    Electronic Resource
    Electronic Resource
    Arterial supply of forearm bones and its importance for the operative treatment of fractures (1997)
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 149-153 
    Details
    ISSN: 1279-8517
    Keywords: Ulna ; Radius ; Blood supply of bones ; Osteosynthesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The operative exposure of a fracture in an osteosynthesis causes disturbances in the blood supply, which often leads to a prolonged process of healing or even to healing problems, a fracture non-union, which is frequently located at the forearm. In order to damage the supplying vessels as little as possible, the position, direction and penetration of the arteries of radius and ulna are demonstrated and systematised in this study. Near the elbow arteries, coming from large adjoining vessels, penetrate the area of the capsular insertion. The nutrient arteries enter both bones in the second proximal quarter of diaphysis, at the radius from anterior to medial, at the ulna from anterior to anteroradial. Small vessels, which penetrate closely proximal to the articular surface in order to supply the distal forearm bones, come from an anastomosis between the radial, the interosseous and the ulnar arteries. In this study access vessels, choice and position of implants will be discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00276-997-0149-9
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The arterial supply of the ankle joint and its importance for the operative fracture treatment (1997)
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 231-235 
    Details
    ISSN: 1279-8517
    Keywords: Tibia ; Fibula ; Talus ; Ankle joint ; Blood supply of bone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The operative exposure of a fracture causes disturbances in the blood supply, which may lead to a prolonged healing process or even to bone necrosis, especially when using the complex and complicated methods of osteosynthesis at the ankle. In order to damage the supplying vessels as little as possible, position, direction and penetration of the bone arteries of the talocrural joint were examined by corrosion preparation. The tibial nutrient artery arises from the posterior tibial artery or from the popliteal artery and penetrates constantly from posterior at the level of the proximal third. The fibular nutrient artery, coming from the peroneal artery, penetrates more distaly from medial into the middle third of the diaphysis. In one specimen it did not exist at all. Distal tibia and fibula are supplied by the perimalleolar arterial ring, which is connected with the three arteries of the leg. The talus is supplied by numerous very small vessels, which are provided with extraosseous anastomoses and penetrate the whole non-articular surface. Implications for the operation will be explained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00276-997-0231-3
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  • 4
    Electronic Resource
    Electronic Resource
    Arthrosis in the peritrapezial joints of the hand (1996)
    Springer
    Surgical and radiologic anatomy 18 (1996), S. 209-213 
    Details
    ISSN: 1279-8517
    Keywords: Arthrosis ; Carpus ; Rhizarthrosis ; Saddle joint
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les articulations péritrapèziennes (art. carpo-métacarpienne du pouce, et articulations adjacentes) de 100 spécimens anatomiques ont été étudiées, notamment en ce qui concerne les altérations arthrosiques radiologiques et macroscopiques. La comparaison entre les constatations radiologiques et macroscopiques montre que les modifications arthrosiques précoces ne peuvent être diagnostiquées par la radiographie. Presque la moitié des mains examinées présentait des lésions arthrosiques de l'art. carpo-métacarpienne du pouce, alors que les articulations scapho-trapèzienne et scapho-trapèzoïdienne n'étaient affectées que dans un tiers des cas. Les mains présentant une arthrose carpo-métacarpienne du pouce évidente présentaient des modifications arthrosiques des articulations entre le scaphoïde, le trapèze et le trapèzoïde dans deux tiers des cas. Il n'y avait pas d'altération arthrosique macroscopiquement évidente dans les autres articulations intercarpiennes du versant radial du poignet. Parmi les facteurs étiologiques susceptibles d'expliquer la coexistence d'arthrose dans les articulations péritrapèziennes, l'architecture du carpe osseux, la morphologie individuelle du scaphoïde, et les processus arthrosiques secondaires ou polyarticulaires sont importants.
    Notes: Summary In the present study saddle joints of the thumb and neighboring joints of 100 anatomic specimens are examined with regard to radiological and macroscopic arthrotic alterations. Comparisons of radiological and macroscopic findings demonstrate that early arthrotic articular alterations cannot be diagnosed radiologically. Almost half of the hands examined displayed arthrotic lesions in the saddle joint of the thumb, whereas the trapezoido-scaphoidal and trapezio-scaphoidal joints are each affected in one third. Hands with manifest thumb saddle joint arthrosis are accompanied by arthrotic alterations of the joints between the scaphoid, trapezium and trapezoid in two-thirds of the cases. In the remaining radial intercarpal joints, no macroscopic evidence can be ascertained of arthrotic alterations. Among the processes discussed as causal factors of simultaneous incidence of scaphoidal and carpo-metacarpal arthroses, the architecture of the osseous carpus, the individual expression of the scaphoid bone and polyor secondary arthrotic processes are important.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02346129
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  • 5
    Electronic Resource
    Electronic Resource
    Radiologic anatomy of the metacarpophalangeal joints II to V (1997)
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 323-327 
    Details
    ISSN: 1279-8517
    Keywords: Anatomy ; Arthrography ; Finger joints ; Joint cavity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les articulations métacarpophalangiennes (MCP) des 2ème au 5ème doigts de 21 mains ont été explorées en radiographie standard et en arthrographie. Plusieurs récessus articulaires, dont un récessus dorsal prédominant, ont été mis en évidence à la fois sur les radiographies et macroscopiquement. Les récessus dorsaux observés pouvaient comprendre une, deux ou trois cornes ou prendre un aspect de coiffe. Un récessus palmaire a été également trouvé sur 49 pièces sous la forme d'une petite expansion capsulaire entre la tête métacarpienne et la plaque palmaire. Un récessus distal était de plus rempli dans presque tous les cas. Des récessus latéraux étaient trouvés sur les bords radial et ulnaire, entre les ligaments latéraux. Les épanchements articulaires se collectent volontiers dans le récessus dorsal qui se manifeste cliniquement. Les récessus latéraux sont cliniquement intéressants par leur proximité avec les ligaments latéraux des MCP. Les récessus décrits sont des structures normales des MCP et ne doivent pas être pris pour des éléments pathologiques.
    Notes: Summary The metacarpophalangeal (MCP) joints II to V of 21 hands were examined radiologically and arthrographically. Different recesses of the joint cavity were demonstrated both radiologically and macroscopically, with a dominating dorsal recess. The existing forms of the dorsal recess were one-tailed, two-tailed, three-tailed, symmetric and caplike. Additionally, a palmar recess was found in the specimens examined, which presented as a small protrusion of the capsule and lay between the metacarpal head and the palmar plate. Furthermore, a distal recess was filled and unfolded in almost all the cases. Lateral recesses were found in the radial and ulnar directions beneath the collateral ligaments. The dorsal recess, due to its ability to collect fluid, is of clinical importance in pathologic processes causing effusions, while the clinical importance of the lateral recesses lie in their proximity to the stabilizing collateral ligaments of the metacarpophalangeal joints. The above mentioned recesses were seen as normal formations of the MCP joints and should therefore be taken into account in pathologic processes in this area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01637603
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    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Arterial supply of forearm bones and its importance for the operative treatment of fractures (1997)
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 149-153 
    Details
    ISSN: 1279-8517
    Keywords: Ulna ; Radius ; Blood supply of bones ; Osteosynthesis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'abord d'un foyer de fracture en vue d'une ostéosynthèse perturbe la vascularisation artérielle des os, ce qui allonge la durée du processus de consolidation, cela peut même conduire à une pseudarthrose dont on connait la fréquence élevée au niveau de l'avantbras. Afin de limiter autant que possible les conséquences vasculaires de l'abord chirurgical, nous avons analysé et systématisé dans cette étude la position, la direction et les zones de pénétration des artères dans le radius et l'ulna. Au voisinage du coude les aa. nourricières des os provenant des vaisseaux voisins, pénètrent dans les os au niveau de la zone d'insertion capsulaire. Les aa. nourricières pénètrent les deux os de l'avant-bras au niveau du second quart proximal de la diaphyse; au niveau du radius cette pénétration se fait en avant et en dedans, au niveau de l'ulna en avant et en dehors. Les petits vaisseaux de la partie distale des deux os de l'avant-bras pénètrent juste en amont des surfaces articulaires et viennent d'une anastomose entre les aa. radiale, interosseuse et ulnaire. Dans cette étude l'abord des vaisseaux, le choix et la position des implants sont discutés.
    Notes: Summary The operative exposure of a fracture in an osteosynthesis causes disturbances in the blood supply, which often leads to a prolonged process of healing or even to healing problems, a fracture non-union, which is frequently located at the forearm. In order to damage the supplying vessels as little as possible, the position, direction and penetration of the arteries of radius and ulna are demonstrated and systematised in this study. Near the elbow arteries, coming from large adjoining vessels, penetrate the area of the capsular insertion. The nutrient arteries enter both bones in the second proximal quarter of diaphysis, at the radius from anterior to medial, at the ulna from anterior to anteroradial. Small vessels, which penetrate closely proximal to the articular surface in order to supply the distal forearm bones, come from an anastomosis between the radial, the interosseous and the ulnar arteries. In this study access vessels, choice and position of implants will be discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01627964
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    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Radiologic anatomy of the metacarpophalangeal joints II to V (1998)
    Springer
    Surgical and radiologic anatomy 19 (1998), S. 323-327 
    Details
    ISSN: 1279-8517
    Keywords: Anatomy ; Arthrography ; Finger joints ; Joint cavity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The metacarpophalangeal (MCP) joints II to V of 21 hands were examined radiologically and arthrographically. Different recesses of the joint cavity were demonstrated both radiologically and macroscopically, with a dominating dorsal recess. The existing forms of the dorsal recess were one-tailed, two-tailed, three-tailed, symmetric and cap-like. Additionally, a palmar recess was found in the specimens examined, which presented as a small protrusion of the capsule and lay between the metacarpal head and the palmar plate. Furthermore, a distal recess was filled and unfolded in almost all the cases. Lateral recesses were found in the radial and ulnar directions beneath the collateral ligaments. The dorsal recess, due to its ability to collect fluid, is of clinical importance in pathologic processes causing effusions, while the clinical importance of the lateral recesses lie in their proximity to the stabilizing collateral ligaments of the metacarpophalangeal joints. The above mentioned recesses were seen as normal formations of the MCP joints and should therefore be taken into account in pathologic processes in this area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00276-997-0323-0
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    The lateral calcaneal artery (1999)
    Springer
    Surgical and radiologic anatomy 20 (1999), S. 419-423 
    Details
    ISSN: 1279-8517
    Keywords: Lateral calcaneal artery ; Calcaneal fracture ; Flap ; Avascular necrosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract An anatomic study of the lateral extraosseous and intraosseous arterial supply of the calcaneus and the lateral soft tissue was carried out on 10 fresh lower adult cadaver legs using different anatomic and radiologic procedures (plastination, modified Spalteholz clearing technique, digital subtraction and rotational angiography and computed tomographic angiography). Consistent patterns of extraosseous and intraosseous lateral calcaneal vascular anatomy were demonstrated. The lateral calcaneal artery is a branch of the anterior tibial artery which crosses over the calcaneal tuberosity and forms a large lateral arch with the lateral tarsal artery which is a branch of the dorsalis pedis artery. The intraosseous circulation is supplied laterally by the lateral calcanear artery, medially via the short branches of the lateral plantar artery. Comparing magnet resonance images after fresh calcaneal fractures the lateral calcanear artery may be interrupted by the impacted lateral bulge, by the conventional lateral surgical approach, or by applying a lateral osteosynthesis plate. This may cause avascular bone necrosis. Furthermore the lateral calcanear artery can clinically serve as a vascular pedicle for a local rotational skin flap to cover soft tissue defects of the heel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s00276-998-0419-1
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    The lateral calcaneal artery (1998)
    Springer
    Surgical and radiologic anatomy 20 (1998), S. 419-423 
    Details
    ISSN: 1279-8517
    Keywords: Lateral calcaneal artery ; Calcaneal fracture ; Flap ; Avascular necrosis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'étude anatomique de la vascularisaiton artérielle extra et intraosseuse du calcanéus et des parties molles a été faite sur 10 jambes fraîches de cadavres d'adultes. Différentes techniques anatomiques et radiologiques ont été utilisées : plastination, diaphanisation (technique de Spaltholtz modifiée), angiographie numérisée par soustraction, angiographie rotationnelle et angiographie par tomographie computérisée. Les aspects habituels de l'anatomie vasculaire de la région latérale du calcanéus ont été décrits : l'ACL est un rameau de l'artère tibiale postérieure ; elle surcroise la tubérosité calcanéenne et constitue une large arcade latérale avec l'artère tarsienne latérale, branche de l'artère dorsale du pied. La moitié de la circulation intraosseuse passe par l'ACL, médialement par des rameaux courts de l'artère plantaire latérale. Lorsqu'on examine les images obtenues en IRM lors de fractures récentes du calcanéus, on constate que l'ACL risque d'être lésée par l'élargissement latéral du calcanéus écrasé. Elle peut l'être aussi lors de l'abord latéral classique de l'os ou lors de l'application d'une plaque d'ostéosynthèse. Le risque en est la nécrose ischémique de l'os. Enfin, l'ACL peut constituer un pédicule vasculaire intéressant pour un lambeau local de rotation, lors de la couverture des pertes de substances cutanées du talon.
    Notes: Summary An anatomic study of the lateral extraosseous and intraosseous arterial supply of the calcaneus and the lateral soft tissue was carried out on 10 fresh lower adult cadaver legs using different anatomic and radiologic procedures (plastination, modified Spalteholz clearing technique, digital subtraction and rotational angiography and computed tomographic angiography). Consistent patterns of extraosseous and intraosseous lateral calcaneal vascular anatomy were demonstrated. The lateral calcaneal artery is a branch of the anterior tibial artery which crosses over the calcaneal tuberosity and forms a large lateral arch with the lateral tarsal artery which is a branch of the dorsalis pedis artery. The intraosseous circulation is supplied laterally by the lateral calcanear artery, medially via the short branches of the lateral plantar artery. Comparing magnet resonance images after fresh calcaneal fractures the lateral calcanear artery may be interrupted by the impacted lateral bulge, by the conventional lateral surgical approach, or by applying a lateral osteosynthesis plate. This may cause avascular bone necrosis. Furthermore the lateral calcanear artery can clinically serve as a vascular pedicle for a local rotational skin flap to cover soft tissue defects of the heel.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01653134
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    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    The arterial supply of the ankle joint and its importance for the operative fracture treatment (1997)
    Springer
    Surgical and radiologic anatomy 19 (1997), S. 231-235 
    Details
    ISSN: 1279-8517
    Keywords: Tibia ; Fibula ; Talus ; Ankle joint ; Blood supply of bone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé L'abord chirurgical d'une fracture crée des perturbations vasculaires qui peuvent provoquer un allongement du temps de consolidation ou une nécrose osseuse, en particulier avec les méthodes complexes et compliquées d'ostéosynthèses utilisées à la cheville. Pour limiter autant que faire se peut les lésions des vaisseaux nourriciers, la position, la direction et le point de pénétration des artères osseuses destinées à l'articulation talo-crurale ont été étudiés sur des injections-corrosions. L'artère nourricière du tibia naît de l'a. tibiale postérieure ou de l'a. poplitée et pénètre toujours la face postérieure du tiers proximal du tibia. L'artère nourricière de la fibula naît de l'a. fibulaire et pénètre la face médiale du tiers moyen de la diaphyse, un peu plus distalement; sur un spécimen, elle manquait complètement. Les parties distales du tibia et de la fibula sont vascularisées par le cercle artériel péri-malléolaire, qui est anastomosé avec les trois artères de la jambe. Le talus est vascularisé par de nombreux petits vaisseaux, reliés entre eux par des anastomoses extra-osseuses, qui pénètrent par toutes les surfaces non articulaires. Les implications pour le traitement opératoire des fractures sont exposées.
    Notes: Summary The operative exposure of a fracture causes disturbances in the blood supply, which may lead to a prolonged healing process or even to bone necrosis, especially when using the complex and complicated methods of osteosynthesis at the ankle. In order to damage the supplying vessels as little as possible, position, direction and penetration of the bone arteries of the talocrural joint were examined by corrosion preparation. The tibial nutrient artery arises from the posterior tibial artery or from the popliteal artery and penetrates constantly from posterior at the level of the proximal third. The fibular nutrient artery, coming from the peroneal artery, penetrates more distaly from medial into the middle third of the diaphysis. In one specimen it did not exist at all. Distal tibia and fibula are supplied by the perimalleolar arterial ring, which is connected with the three arteries of the leg. The talus is supplied by numerous very small vessels, which are provided with extraosseous anastomoses and penetrate the whole non-articular surface. Implications for the operation will be explained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01627863
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    Paper (German National Licenses)
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