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11.
T. Aköz B. Erdoğan M. Görgü M. R. Kapucu O. Girgin 《European journal of plastic surgery》1998,21(6):308-310
Camptodactyly is a flexion deformity of the proximal interphalangeal joint. Because of unsatisfactory results, treatment is
not recommended for mild deformities, and in severe deformities surgery has been disappointing. A specially designed external
fixator providing gradual distraction was used in a severe case. With this mildly aggressive method, an acceptable result
was obtained.
Received: 5 June 1997/Accepted: 2 February 1998 相似文献
12.
Dysphoric Rumination Impairs Concentration on Academic Tasks 总被引:3,自引:0,他引:3
Three studies investigated the effects of dysphoric rumination on concentration during 3 academic tasks—reading a passage from the GRE (Study 1), watching a videotaped lecture (Study 2), and proofreading written text (Study 3). Before performing these tasks, dysphoric and nondysphoric students were induced either to ruminate about themselves or to distract themselves by focusing on neutral images (all three studies) or by planning an event (Study 1). The results supported our hypothesis that dysphoric rumination, relative to distraction, would impair students' concentration. In all 3 studies, dysphoric ruminators reported difficulty concentrating, as well as interfering thoughts, during the relevant academic tasks. Furthermore, dysphoric ruminators were slower than dysphoric distractors in completing the tasks—specifically, reading the GRE passage (Study 1) and answering lecture comprehension questions (Study 2). In addition, dysphoric participants who ruminated showed impaired reading strategies (Study 1), reduced comprehension of academic material (Study 2), and poor proofreading performance (Study 3). These findings suggest that, in addition to its documented adverse effects on mood, thinking, and problem-solving, self-focused rumination interferes with instrumental behavior. Implications for social relationships and job performance are discussed. 相似文献
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Seong-Woong Kim Kyu-Won Shim Nick Plesnila Yong-Oock Kim Joong-Uhn Choi Dong-Seok Kim 《Child's nervous system》2007,23(2):201-206
Objects We designed several distraction devices and applied these instruments in 14 patients with varying types of craniosynostosis.
The aim of this report is to clarify the advantages and disadvantages of these surgical methods and to discuss current concepts
for the surgical strategy in the treatment of craniosynostosis.
Methods From January 2000 to July 2005, 28 patients with craniosynostosis were retrospectively analyzed. Surgical treatment was performed
on 14 patients using the distraction method with internal distraction devices that we designed, in which 5 patients had plagiocephaly,
3 brachycephaly, and 6 scaphocephaly. All patients underwent preoperative and postoperative evaluations, which included the
patient’s neurological state, and three-dimensional CT.
Results With distraction devices, the time required for the surgery could be shortened almost 3 1/3 h; the bleeding during the surgery
was decreased with reduced requirement of more than 200 ml of blood transfusion as compared with remodeling surgery. Postoperatively
achieved distraction distances varied from 30.0 to 47.5 mm (mean, 42.99 mm). The average increased volume percent of cranium
in distraction surgery group was 20.9% (range, −11.5 to 58.9%) after full distraction.
Conclusion With distraction surgery, satisfactory cranial volume expansion and aesthetically pleasing morphological states were achieved
in all cases, and the efficacy was statistically significantly high as compared with remodeling method. 相似文献
15.
Distraction osteogenesis in the Cbfa-1+/- mouse. 总被引:2,自引:0,他引:2
S Isefuku C J Joyner A A C Reed A H R W Simpson 《Journal of orthopaedic research》2004,22(6):1276-1282
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目的 观察中面部牵引成骨技术对眼眶周围软、硬组织结构的三维空间位置变化的影响.方法 回顾性分析2003年9月至2006年6月接受Le Fort III型截骨+中面部牵引成骨术的8例Crouzon综合征患者CT数据,平均年龄11.9岁,实施影像三维重建后,采用眶耳平面(术前)作为测量的基准平面,分别选择眶上点、眶下点、眶内缘点、眶外缘点、眼球前点、眼球后点,以及上、下、内、外四直肌与眼球的附着点作为评估标志,以双侧耳门上点连线作为颅底宽度基准,记录各个主要标志点至耳门上点连线的矢状距(y轴向)、垂直距(z轴向)以及眼球前点、眼球后点的水平间距(x轴向)变化,行配对t检验,并与健康对照组比较.结果 牵引成骨术前后眼球前点的y轴向及z轴向位置并没有显著性变化,但x轴向间距变化为-3.40 mm;眶下点移动在y轴向平均12.24 mm,z轴向平均4.25 mm;眶内缘点移动在y轴向平均10.11 mm,z轴向平均2.80 mm;眶外缘点移动在y轴向平均9.86 mm,z轴向平均2.31mm;下直肌支点移动,y轴向平均3.63mm,z轴向平均2.98mm.其余各标记点未见有临床意义的位移变化.结论 以Le Fort III型截骨为主的面中部牵引成骨技术,可以使Crouzon综合征患者的术后眼眶内、外、下侧壁均出现明显的前、下方移位,而患者的眼球没有显著性的矢状向位置变化,仅呈现轻度的内移、下降和前上方旋转. 相似文献
18.
Gérard Brunel Edmond Benqué Frédéric Elharar Catherine Sansac Jean François Duffort Pierre Barthet Eric Baysse Neal Miller 《Clinical oral implants research》1998,9(5):303-312
The aim of the present study was to evaluate the combined application of different bioabsorbable materials for healing of residual peri‐implant defects after placement of non‐submerged implants into fresh extraction sockets. Second and third mandibular premolars were extracted from 10 Beagle dogs, the coronal part of the distal sockets were surgically enlarged and this was followed by immediate placement of specially designed hollow‐screw non‐submerged dental implants. For each animal, the coronal peri‐implant defects were further treated with one of the 4 following procedures: 1) no treatment, control site: 2) grafting with porous hydroxyapatite (HA); 3) collagen membrane tightly secured around the implant and over the defect and 4) grafting with HA covered with a collagen membrane. After 16 weeks of healing, specimens were removed from the mandibule and prepared for a histomorphometric evaluation. The bone-to-implant contact length (BIC) was measured and compared amongst the different treatment modalities. In the defect area, the irregular bone regeneration was similar between all the treatment procedures ( P >0.10). In the sites covered with a collagen membrane alone, the total BIC (47%) was greater than in control sites (28.7%. P <0.05) or sites grafted with HA (22.2%, P <0.02). Total BIC in sites treated with the HA‐membrane combination (43%) was only significantly different from sites treated with HA ( P <0.10). It is concluded that the use of bioabsorbable materials results in a limited increase of osseointegration when used in conjunction with immediate placement of non-submerged implants, although the principle of the one stage surgical approach can be maintained. 相似文献
19.
K. S. Desyatnichenko A. A. Shreiner Yu. M. Ir'yanov S. N. Asonova S. A. Erofeev O. L. Grebneva S. N. Luneva E. L. Matveeva S. P. Isotova O. B. Ustyuzhanina 《Bulletin of experimental biology and medicine》1997,124(2):826-829
The effects of Stimbone-1, a complex of growth factors deposited by osteal tissue, on maturation of distraction regenerative
substrate are studied in dogs. At the end of distraction, the preparation is injected into the regenerative connective tissue
interlayer. Roentgenological, biochemical, and quantitative morphological data show that Stimbone-1 stimulates reparative
osteogenesis.
Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 124, No. 8, pp. 233–236, August, 1997 相似文献
20.