1,720,961 research outputs found
Clinical and ultrasound results after arthroscopic repair of the rotator cuff
No full textThe literature reports good functional results obtained with arthroscopic repair of the rotator cuff, but the incidence of anatomical healing has not been sufficiently studied. Ultrasound examination makes it possible to accurately document the healing process of the tendon at the bone, gathering information that may be useful in a comparison with clinical data. A total of 43 consecutive arthroscopic repairs of rotator cuff injuries were considered, that had made use of anchors and non-resorbable suturing. A total of 42 patients were willing to undergo clinical monitoring with an associated ultrasound examination after 3, 6 and 12 months. When ultrasound examination after 6 and 12 months was carried out, 36 patients presented with anatomical healing of the rotator cuff. The total percentage of repair failures was 14.3% and increased to 23% if we take into consideration the subscapular tendon alone. Constant score went from a preoperative mean of 51.25 to a mean of 78.21 after 12 months (p<0.001). Arthroscopic repair of the rotator cuff leads to anatomical healing of the tendons in a high percentage of cases, obtaining good functional results. The absence of healing is associated with lower values for recovery of strength at clinical follow-up. The advanced age of the patients (p<0.001) and the extensive injuries that involve several tendons (p=0.002) are negative prognostic factors
Arthroscopic treatment of chronic acromioclavicular joint dislocation by modified Weaver-Dunn techinique [Trattamento artroscopico delle lussazioni croniche dell’articolazione acromion-claveare mediante tecnica di Weaver-Dunn modificata]
No full textThe authors describe an arthroscopic reconstruction technique for type III, IV and V acromioclavicular symptomatic chronic joint dislocation. It consists of a closed reduction and transfer of the acromial attachment of the coracoacromial ligament to the resected surface of the distal clavicle, associated to the positioning of a cannulated screw between the clavicle and the coracoid under arthroscopic control to achieve greater primary stability. Coracoacromial ligament is secured to the superior surface of clavicle by an Endobutton (Smith and Nephew, Andover, Massachusetts). The resection of the distal clavicle is minimal. The screw is finally removed under local anesthesia 12 weeks after surgery. The described procedure has been performed in three patients. Preliminary results show an excellent functional outcome without any residual pain. Among the advantages of the technique are a minimally invasive approach, the possibility of searching the glenohumeral joint for associated lesions and eventually treating them, and the benefits of not exposing the patient or surgical team to ionizing radiation
Arthroscopic treatment of acute acromioclavicular joint dislocation
No full textAn original technique for the treatment of acute acromioclavicular (AC) joint dislocations is proposed. It consists of a closed reduction and stabilization of the AC joint, positioning a cannulated screw between the clavicle and the coracoid under arthroscopic control, without any exposure to x-rays. The conoid and trapezoid ligaments are not sutured or reconstructed. The screw is finally removed under local anesthesia 12 weeks after surgery. The described procedure has been performed in 9 patients. Short-term preliminary results show an excellent functional outcome without any residual pain. Among the advantages of the technique are that it does not require specific instrumentation, is a minimally invasive approach, has the possibility of searching the glenohumeral joint for associated lesions and eventually treating them, and has the benefits of not exposing the patient or surgical team to ionizing radiation
Arthroscopic treatment of fractures of the radial head.
No full textAn original technique for the arthroscopic diagnosis and treatment of the fractures of the radial head is proposed and described. The elbow arthroscopy is started with a 4.5-mm 30 degrees arthroscope from the proximal anteromedial portal and the anterior elbow is examined; then a proximal anterolateral portal is created and a full-radius blade inserted to take out the hematoma and to allow visualization of the radial head that is explored through the whole range of motion to visualize the fracture fragment. The fragment is manipulated by means of arthroscopic tools to reduce the anteromedial surface of the radial head. The arthroscope is now switched to the posterolateral portal and the posterior aspect of the humeral radial joint is visualized. The soft spot portal is used to insert a periosteal elevator to complete the reduction and firmly hold the fragment in the reduced position. An anterolateral portal is now created to allow the safe insertion of a guidewire, angled 45 degrees to the longitudinal axis of the radius, to pierce the fragment with. A 14-mm long cannulated screw is inserted along the guide after specific drilling. Finally, the reduction and the stability of the fixation are checked with during full rotation of the elbow. The described procedure has been performed in 6 patients. Short-term preliminary results show a satisfactory functional outcome. Among the advantages of the technique are the minimally invasive approach, the direct visualization of the fracture, and the benefits derived from the radiation-free procedure
New trends in shoulder traumatology: The arthroscopic techniques
No full textThe arthroscopic technique for the treatment of the glenoid and the proximal humerus fractures is a technically demanding surgical approach. Few very skilful surgeons with a lot of experience in the classic shoulder arthroscopic procedures (instability and rotator cuff repair) have been able to perform reduction and internal fixation in selected cases. Greater and lesser tuberosity fractures, Bony-Bankart and articular glenoid fractures have been successfully managed by mean arthroscopic technique. K-wires, cannulated screws and suture-anchors have been used to fix the bony-fragments. A new field of arthroscopic surgery is the treatment of acute and chronic acromion-clavicular dislocation and new different techniques have been described. Those arthroscopic treatments follow the trend to develop minimally invasive surgical techniques in the orthopaedic surgeons communit
New trends in shoulder traumatology: The arthroscopic techniques [Le novità nella traumatologia della spalla: Metodiche artroscopiche]
No full textThe arthroscopic technique for the treatment of the glenoid and the proximal humerus fractures is a technically demanding surgical approach. Few very skilful surgeons with a lot of experience in the classic shoulder arthroscopic procedures (instability and rotator cuff repair) have been able to perform reduction and internal fixation in selected cases. Greater and lesser tuberosity fractures, Bony-Bankart and articular glenoid fractures have been successfully managed by mean arthroscopic technique. K-wires, cannulated screws and suture-anchors have been used to fix the bony-fragments. A new field of arthroscopic surgery is the treatment of acute and chronic acromion-clavicular dislocation and new different techniques have been described. Those arthroscopic treatments follow the trend to develop minimally invasive surgical techniques in the orthopaedic surgeons communit
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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