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Neuraland vascular complications of arthroscopic meniscal surgery (1994)

Bernard, M. ; Grothues-Spork, M. ; Georgoulis, A. ; [et al.]

Springer

Knee surgery, sports traumatology, arthroscopy 2 (1994), S. 14-18

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ISSN: 1433-7347

Keywords: Arthroscopy ; Meniscus ; Complications ; Vessels ; Nerves ; Anatomy

Source: Springer Online Journal Archives 1860-2000

Topics: Medicine , Sports Science

Notes: Abstract Injuries to vessels and nerves are very rare complications of arthroscopic meniscal surgery. The clinical development and diagnosis of such complications are described and illustrated by cases described in the literature and by two of our own cases. Typical patterns of injury are simulated by dissection of cadaver knees. To avoid neural complications in suturing the menisci, on the medial side the joint capsule has to be prepared when using the inside-out orthe outside-in technique. On the lateral side the outside-in technique can be performed by small suture incisions in this area when the lateral knee structures can be palpated. When using the inside-out technique the peroneal nerve must be dissected free. When resecting the posterior horn of the medial meniscus forced external rotation of the knee should be avoided because in this position the popliteal artery and the medial inferior genicular artery lie close to the posterior horn.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF01552648

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Redox processes in polyaniline thin film studied by optical multichannel analysis (1992)

Bernard, M. C. ; Hugot-Le Goff, A.

Chichester [u.a.] : Wiley-Blackwell

Surface and Interface Analysis 19 (1992), S. 27-32

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ISSN: 0142-2421

Keywords: Chemistry ; Polymer and Materials Science

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Physics

Notes: Optical multichannel analysis (OMA) was used to follow the kinetics of colour changes in electrochromic polyaniline films when the latter are polarized in an electrolytic medium at different potentials. These colour changes, which are related to the transition from one polymer form to another, are very fast. OMA also allowed us to obtain an apparent value of the film absorption coefficient. In the investigated range (300-800 nm), several absorption phenomena can be displayed which are characteristic of the different polymer forms. Two electrolytic media (1 M HCl and 1 M H2SO4) were compared to investigate the role played by the size of the inserted counter-ion. The overall results allow us to estimate the practical possibility of using polyaniline in electrochromic devices.

Additional Material: 9 Ill.