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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1433-7347
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1433-7347
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Type of Medium: Electronic Resource
    Signatur Availability
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1433-7347
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Type of Medium: Electronic Resource
    Signatur Availability
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  • 4
    ISSN: 1433-7347
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1433-7347
    Keywords: Knee hemarthrosis ; Bone imaging ; X-ray ; Bone scan
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Notes: Abstract Follow-up evaluations were carried out in 84 patients examined 5–8 years after sustaining an acute traumatic hemarthrosis of the knee. The initial examination performed within 2 weeks of injury had revealed 18 patients with a stable knee and 66 with anterior instability. Twelve of the patients underwent anterior cruciate ligament reconstruction within 3 months of injury and 11 more did so between 1 and 3 years after injury. To document joint deterioration at follow-up, bone scintigraphy and conventional anteroposterior, lateral, and tunnel X-rays were taken. Medial, lateral, patellofemoral and patellar uptake in bone seintigraphy was graded from 0 to 4. Six radiological variables were graded at eight different sites. Sixty-three patients (75%) had a positive bone scan and 69 patients (82%) showed radiological changes. Bone scan and X-ray scores were both significantly higher in the reconstructed knees.
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  • 6
    ISSN: 1433-7347
    Keywords: Proximal ACL reinsertion ; Late results
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Description / Table of Contents: Zusammenfassung Zwischen 1982 and 1984 wurden im Unfallkrankenhaus Salzburg 49 Patienten mit frischen isolierten proximalen Rupturen des vorderen Kreuzbandes operiert. Die Operation erfolgte bei allen Patienten innerhalb der 1. Woche nach dem Trauma. Die von uns durchgeführte Operationstechnik war die alleinige proximale Reinsertion des gerissenen vorderen Kreuzbandes über 2 Bohrkanäle transossär bzw. über einen transossären Bohrkanal und “over the top”. Die postoperative Ruhigstellung erfolgte im Oberschenkelgehgipsverband für insgesamt 6 Wochen. 42 unserer 49 operierten Patienten konnten wir zwischen 5 und 7 Jahre postoperativ nachuntersuchen. Dabei wurde neben der klinischen Stabilitätsprüfung auch eine Stabilitätsprüfung mit dem KT 1000 durchgeführt. Die objektiven und subjektiven Ergebnisse wurden nach dem Lysholm Scale und nach dem OAK-Bogen ausgewertet. Dabei fanden wir in 29% absolut stabile Kniegelenke. Gibt man sich mit einem KT 1000 Meßwert bis zu 3 mm zufrieden, so fielen 81% unserer Patienten in diese Kategorie. Der Lysholm Score lag ebenfalls bei 81% und über 85 Punkten. Im OAK-Bogen wiesen lediglich 52% über 90 Punkte auf. Subjektiv waren nur 14% unserer Patienten mit dem Ergebnis unzufrieden.
    Notes: Abstract Between 1982 and 1984, 49 patients with fresh isolated proximal ruptures of the anterior cruciate ligament (ACL) were operated on in the Trauma Hospital, Salzburg. The operation was performed within 1 week of trauma. The operational technique used was proximal reinsertion of the ruptured ACL alone. Postoperatively the knee was immobilized for 6 weeks in an above-theknee plaster cast. We were able to re-examine 42 of the 49 patients 5–7 years after injury. In addition to a clinical examination, testing with a KT-1000 arthrometer was performed. The objective and subjective results we found were evaluated using the Lsyholm score and OAK knee evaluation form. We found 12 (29%) absolutely stable knee joints. We accepted a KT-1000 result of up to 3 mm as satisfactory, and 81% of our patients were in this category. The same percentage (81%) scored between 85 and 100 points on the Lysholm scale. Only 52% scored over 90 points on the OAK form. Subjectively only 6 patients (14%) were dissatisfied with their result.
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  • 7
    ISSN: 1433-7347
    Keywords: Posterior cruciate ligament ; Anatomy ; Knee surgery ; Isometry ; Drill-guide ; Stability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Notes: Abstract In 40 normal cadaver knees from adults (mean age 29 years) the average length of the posterior cruciate ligament was 38±4mm. The angle between the ligament and the long axis of the femur was 43.4±30 with the knee in full extension. We studied the functional importance of different attachments of the posterior cruciate ligament. The distance between the central point of the normal attachment area on the tibia and the central proximal part of the femoral attachment area on the medial femoral condyle was found to change least during full range of knee motion. On the basis of the results in the present study we suggest some basic orinciples for a standardized replacement uperation for a deficient posterior cruciate ligament using a new drill-guide. The drill-guide has been used in 14 consecutive patients (mean age 26±6 years) who underwent a reconstruction of the posterior cruciáte ligament. The patients have been followed for 2 years. The Lysholm score increased significantly from 60±16 preoperatively to 76±15 (P〈0.001) at 2 years, and the stability, measured with a laxity tester, improved from 8±3mm total excursion preoperatively to 6±3mm at 2 years follow-up. The follow-up time is still short but the results seem to be promising.
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  • 8
    ISSN: 1433-7347
    Keywords: ACL disruption ; Tibial displacement ; KT-1000 arthrometer
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Notes: Abstract The KT-1000 was used to measure anterior tibial displacement in three populations: normal subjects (n=120), patients with unilateral acute anterior cruciate ligament (ACL) disruptions (n=105), and patients with chronic unilateral ACL disruptions who were scheduled for ACL reconstructions (n=159). All patients with ACL disruptions were measured with and without anesthesia. Tibial displacement under three loading conditions was measured: 89 N anterior displacement force, manual maximum displacement force, and quadriceps contraction to lift the leg. The measurements of the normal knee in the injured populations were not significantly different from those of the knees in the normal population on any test. The injured knee tested with and without anesthesia was significantly different from the normal knee on all tests. The right-left difference in the normal population as less than 3 mm in 98% of patients in the 89-N test, 97% in the manual maximum test, and 99% in the quadriceps active test. The largest amount of displacement and the greatest difference in displacement between the injured and the normal knee was produced by the manual maximum test. The manual maximum injured-minus-normal knee displacement was 3mm or more in 99% of patients with chronic ACL disruptions and in 95% of patients with acute ACL disruptions.
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  • 9
    ISSN: 1433-7347
    Keywords: Glenohumeral joint ; Proprioceptive capability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Notes: Abstract We performed a clinical study examining 60 volunteers with stable shoulder joints randomized to two groups. In group 1 we injected 5 ml lidocaine intra-articularly. In group 2 we injected 5 ml saline with 5 ml contrast dye the same way. After the injection we measured the amount of passive anteroposterior translation that occurred during anterior and posterior drawer tests and the amount of inferior subluxation during downward stress. We documented the extent of the passive glenohumeral translation using ultrasound. We had no complications related to the intra-articular injection or to the stability measurement. After the injection neither group had significant pain, and the patients were not apprehensive about the ensuing stability test. In group 1 (lidocaine) anteroposterior translation of 13.2±6.3 mm was seen in the anterior and posterior drawer test, whereas in group 2 (no lidocaine) the anteroposterior translation was only 6.8±3.2 mm. The difference between the two groups was statistically significant (P〈0.05). With downward stress during the sulcus test the distance between the acromion and the humeral head increased by 5.6 mm (±3.2) in group 1 and by 2.7 mm (±2.1) in group 2. This difference was also statistically significant (P〈0.05).Clinical consequences: Taking our preliminary findings into account, the capsule of the glenohumeral joint seems to have proprioceptive capability. Nerve fibres and mechanoreceptors seem to be localized in the capsule tissue, being part of a physiological feedback mechanism. If our conclusions proprioceptive capability. Nerve fibres and mechanoreceptors seem to be localized in the capsule tissue, being part of a physiological feedback mechanism. If our conclusions turn out to be right, patients with labrum detachment after traumatic shoulder dislocation should undergo surgery as soon as possible to restore their anatomical integrity and retain the neurophysiological feedback mechanism.
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  • 10
    ISSN: 1433-7347
    Keywords: Laser flowmetry ; Arthroscopic measurement ; Microcirculation ; Blood cell flux ; Laser-Flowmetrie ; Mikrozirkulation ; Arthroskopische Messung ; Vorderes Kreuzband
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine , Sports Science
    Description / Table of Contents: Zusammenfassung Die Laser-Doppler-Flowmetrie gestattet den Nachweis der Durchblutung im mikrokapillären Bereich von Strukturen unter in vivo-Bedingungen. Wir verwendeten das Lasergerät der Firma Perimed (Schweden) und eine Spezialsonde um die kapilläre Durchblutung des vorderen Kreuzbandes während eines arthroskopischen Eingriffs nachzuweisen. Dabei erhält man Meßwerte in Millivolt, welche relativer Natur sind, ein absoluter Wert der Kapillardurchblutung in Volumen pro Zeiteinheit kann dadurch nich bestimmt werden. Unter standardisierten Bedingungen erfolgte bei 11 Patienten die Durchblutungsmessung und simultane Aufzeichnung auf einem 2-Kanal-Schreiber. In allen Fällen konnten herzsynchrone Pulsationen der kapillären Durchblutung des vorderen Kreuzbandes an 3 Meßpunkten nachgewiesen werden, welche bei Schließen der Blutsperre zur Gänze verschwanden. Wir fanden eine große individuelle Schwankungsbreite der sogenannten Blood-Cell-Flux-Werte von 30 mV bis 620 mV. Die Höhe der herzsynchronen Pulsationen schwankte zwischen 20 mV und 240 mV. Zwischen den einzelnen Meßpunkten oder zwischen den Fluxwerten und der Höhe der Pulsationen konnte nur ein vager Zusammenhang in der linearen Regressionsanalyse gefunden werden, kein Zusammenhang war zwischen den Fluxwerten und dem Blutdruck bzw. dem roten Blutbild nachzuweisen.
    Notes: Abstract Laser Doppler flowmetry permits observation of circulation in the microcapillary regions of structures under in vivo conditions. We used a laser device manufactured by the Swedish company Perimed and a special probe to observe the capillary circulation in the anterior cruciate ligament during arthroscopic surgery. This produces measured values in millivolts: these values are relative in nature and cannot be used to determine an absolute value for capillary circulation by volume per unit time. Under standardized conditions, circulation measurements and simultaneous recordings with a twochannel recorder were made from 11 patients. In all cases, pulsations of the capillary circulation synchronous with the heart beat could be seen on three measuring points on the anterior cruciate ligament; these disappeared upon complete deprivation of blood supply. We found a large individual range of variation in the so-called blood cell flux values from 30 to 620mV. The magnitude of the heart-synchronous pulsations ranged between 20 and 240 mV. Only vague linear relationships were found (a) between the individual measuring points and (b) between the flux values and the magnitude of pulsation; there was no relationship between the flux values and blood pressure and/or red blood count (erythrocyte count, hemoglobin, hematocrit).
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