1,720,992 research outputs found
A positioning technique for closed intramedullar nailing of tibia fractures
No full textBackground. We described a method of positioning the patient on the standard operation table that enables manual traction and equipment that is available in almost all operating theaters and compared it with regular positioning technique. Methods: Eighty two patients with unstable unilateral tibia fractures were evaluated and treated in the author's clinic between July 2002 and June 2006. The average age of the patients was 40.6 (29-65) years. The surgical indications included uncomplicated closed fractures, fractures in patients with multiple injuries, and inability to maintain a satisfactory closed reduction. Forty-two fractures that were operated with the new technique and meet these criteria's were included in the study. All operations were performed on normal operation tables. Results: There was not any case of failure related with the nailing and the presented positioning technique. Intraoperative reduction was achieved with closed method in all patients. In 10 patients, satisfactory reduction was achieved with the help of polar screws in 2 patients and cable system in 8 patients. Anatomic reduction was obtained in the rest of 32 patients. There were no cases of compartment syndrome diagnosed postoperatively in both injured and uninjured side. There were also no neurologic complications and postoperative infection formation related to surgery. Conclusion: The advantages of this technique is that, it allows precise reduction, control of rotation, and easy imaging access, without increasing operating or screening time and complication
Partial removal of nail matrix in the treatment of ingrowing toe nail
No full textObjectives: Ingrowing toe nail is a frequent disorder of the foot. In this study, we evaluated the results of surgical treatment of ingrowing toe nail. Methods: Sixty-two patients (31 males, 31 females; mean age 38 years; range 11 to 72 years) with ingrowing toe nail underwent partial removal of the nail matrix according to the Winograd technique. The presenting complaints were pain, foul-smelling drainage, deformity, and difficulty in walking. According to the Heifetz's staging system, 18 patients had stage I, 23 patients had stage II, and 21 patients had stage III disease. Forty-four patients had active drainage due to an infectious process. The infected cases were operated on after improvement of inflammation by antibiotic treatment. One patient underwent excision of subungual exocytosis causing severe deformity of the toe. Time to return to work, time to recurrence, and patient satisfaction were evaluated. The mean follow-up period was 26 months (range 24 to 42 months). Results: Recurrence was seen in four patients (6.5%) within a mean of 4.2 months (range 3 to 7 months). The remaining patients returned to normal daily activities after a mean of 12 days (range 10 to 16 days). The mean time to work was five days (range 3 to 16 days). All but two patients who developed recurrences expressed satisfaction with surgery. None of the patients had deep infection or neurovascular complications. Conclusion: Partial removal of the nail matrix is associated with a very low recurrence rate and a higher rate of patient satisfaction
Full recovery of muscle function after delayed primary repair of deltoid muscle detachment
No full textDetachment of the deltoid muscle and tendon is a rare complication that is reported to result in poor outcome after rotator cuff surgery. We performed a delayed primary repair of the detached deltoid in a 53-year-old female patient who underwent an open acromioplasty procedure. A successful result was achieved after surgical restoration of the deltoid muscle origin back to the acromion. At 25 months follow-up the patient had recovered almost the full range of motion of the glenohumeral joint and was free of pain. Due to lack of literature on this rare condition, there are no well-defined treatment principles for the management of deltoid muscle detachments that develop as a complication of rotator cuff surgery. This paper describes a repair procedure for the management of deltoid muscle detachments. In addition, it discusses the importance of the guidelines that have to be followed during primary rotator cuff surgery
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Effect of partial medial meniscectomy on the proprioceptive function of the knee
No full textThe aim of this study was to assess the proprioception of the partial meniscectomized knee and to assess if there is an effect on the knee proprioception. We performed a case-control study involving patients with meniscus tear at the posterior horn of medial meniscus. Group 1 composed of 19 patients, with an average age of 26.3 years, who were enrolled after sustaining an injury to the medial meniscus. Twenty healthy individuals, with an average age of 25.1, without history of knee injury, constituted Group 2. In order to document the proprioceptive capabilities of the knee, angle reproduction tests were performed. At a mean of 2 years after the surgery, there was no difference between the meniscectomized and healthy knee regarding the angle deviations in the lower flexion angles (15A degrees, 30A degrees, 45A degrees). However, mean knee joint position sense (KJPS) at 60A degrees reproduction in Group 1 and 2 was 64.3 (SD 5.3) and 69.2 (SD 4.9), respectively. Concomitantly, mean KJPS at 75A degrees reproduction in Group 1 and 2 were 80.1 (SD 6.59) and 74.4 (SD 5.6), respectively. Paired t test showed a statistically significant difference between Group 1 and 2 when compared to control angle deviations at 60A degrees and 75A degrees reproductions (P < 0.05). KJPS of the patients in meniscectomized group was poorer than the patients in healthy knee group at 60A degrees and 75A degrees knee flexion degrees. Those results indicated that even a partial absence of menisci causes a deterioration of proprioceptive functions of the knee
The effect of overlapping on the primary stability of osteochondral grafts in mosaicplasty
No full textOur goal was to determine the primary stability of overlapping osteochondral grafts used in mosaicplasty by studying the effect of overlapping in an ex vivo model. Osteochondral grafts, 10 mm in diameter, were transplanted from the trochlea of cow femurs to the weight-bearing area of the lateral femoral condyle with 0, 15, or 30% overlap. The grafts were pushed in with a probe at a rate of 2 mm/min, and load (N)-displacement (mm) curves were recorded. In Group I (control, 0% overlap), insertion 1 and 2 mm below the cartilage level could be reached at 572.3 +/- 273.6 and 999.3 +/- 427.6 N, respectively. In Group II (15% overlap), insertion 1 and 2 mm below the cartilage level could be reached at 263.6 +/- 91.7 and 746.6 +/- 88.0 N, respectively. In Group III (30% overlap), insertion 1 and 2 mm below the cartilage level could be reached at 179.4 +/- 31.2 and 657.0 +/- 106.5 N, respectively. The loads that were necessary to produce a 1-mm dent in the grafts were significantly different between Groups I and II and Groups I and III (p < 0.05). These results suggest that stability may be reduced by graft overlapping in mosaicplasty surgery. The results of this ex vivo animal study contribute to a more complete understanding of the primary stability of osteochondral grafts in an overlapping position as well as postoperative protocols
The Use of Screw at the Fracture Level in the Treatment of Thoracolumbar Burst Fractures
No full textStudy Design: In this prospective randomized study, the results of treating unstable thoracolumbar burst fractures by pedicle instrumentation with and without fracture level screw combination were given. Objective: Our aim was to evaluate the efficacy of fracture level screw combination in achieving and maintaining correction in the treatment of unstable thoracolumbar burst fractures. Summary of Background Data: Most authors reported that intraoperative correction of sagittal deformity is important for the maintenance of fracture reduction and is one of the most consistent predictor of satisfactory functional outcome. Methods: Seventy-two patients with unstable thoracolumbar burst fractures were randomized into 4 groups with equal number of patients. In group 1, patients were treated by segmental posterior instrumentation with 2 levels above and 2 levels below the fracture level fixation, in group 2 they were treated as in group 1 with fracture level screw incorporation. In group 3, patients were treated by short-segment posterior instrumentation with 1 level above and 1 level below, in group 4 they were treated by short-segment posterior instrumentation with fracture level screw incorporation. Clinical and radiologic parameters were evaluated before surgery, after surgery, and at follow-up. Results: The average follow-up was 50 months. Fracture level screw combination provided better intraoperative correction and maintenance in the treatment of unstable thoracolumbar burst fractures, which was more prevalent in short-segment fixation group. Conclusions: Reinforcement with fracture level screw combination can help to provide better kyphosis correction and offers immediate spinal stability in patients with thoracolumbar burst fracture
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