Successful replantation of nine severed segments of four fingers in left hand: A case report / 中华显微外科杂志

This article reports a case, happened in July 2019, of 9 severed segments of 2nd-5th fingers in left hand treated in the Department of Repair and Microsurgery, Zhengzhou Renji Hospital. Through the unified management before surgery, team surgery, three or four fixed-point mattress eversion suture and close observation after surgery. It can effectively prevent the occurrence of vascular compromise. All the replanted fingers survived after the surgery. And the function of the fingers recovered well at 2 years after surgery through early and continuous rehabilitation exercise.

Effects of Fixed-Point Lateral Flexion and Rotation Manipulation on Intervertebral Foramina Morphology of Cervical Spondylotic Radiculopathy / 医用生物力学

Objective To analyze the changes in morphology of intervertebral foramina in patients with cervical spondylotic radiculopathy (CSR) treated with fixedpoint lateral flexion and rotation manipulation based on three-dimensional (3D) reconstruction technology, so as to provide references for the effectiveness of manipulation treatment. MethodsForty patients with CSR were treated with fixed point lateral flexion and rotation manipulation once every other day for a total of 7 times and 2 weeks as a course of treatment. CT data of the patients before and after treatment were analyzed by using multifunctional CT, Mimics 21.0, Geomagic and SolidWorks 2017. The area of the intervertebral foramen, anterior and posterior diameter of the intervertebral foramen, upper and lower diameter of the intervertebral foramen were measured before and after treatment, as well as the infrared thermal imaging temperature differences of the bilateral neck and shoulder, front and back of the upper limb, and the VAS scores of the patients were observed before treatment, 7 d after treatment, 14 d after treatment and 1 month follow-up. Results Foraminal area, anterior and posterior diameters, upper and lower diameters of 40 patients were improved after treatment, and the temperature differences of infrared thermal imaging of patients before and after treatment were statistically significant. The VAS score of the patients decreased progressively. Conclusions Fixed point lateral flexion manipulation can significantly improve the shape of the intervertebral foramen in patients with CSR, so as to achieve the treatment purpose of relieving nerve compression.

Clinical observation on the treatment of cervical spondylotic radiculopathy by the pulsed radiofrequency combined with the fixed-point lateral flexion and rotation realignment cervical manipulation / 国际生物医学工程杂志

Objective To observe the clinical efficacy of pulsed radiofrequency combined with fixed-point lateral flexion and rotation realignment cervical manipulation in the treatment of cervical spondylotic radiculopathy (CSR). Methods Sixty-three patients with CSR were randomly divided into observation group (n=32) and control group (n=31). The observation group was given pulse radiofrequency combined with fixed-point lateral flexion and rotation realignment cervical manipulation, and the control group was given the pulsed radiofrequency treatment. Visual analog scale (VAS) and Japanese Orthopaedic Association (JOA) scores were obtained before the treatment, 7 days and 3 months after the treatment. The temperature differences of bilateral upper limbs infrared thermal imaging were observed before and 3 months after the treatment in the two groups. The clinical efficacy of the two groups was evaluated by using TCM disease and syndrome diagnosis criteria. Results After 7 days and 3 months of the treatment, the VAS scores of the two groups were lower than those before treatments, the VAS scores of the observation group were lower than the control group, and all the differences were statistically significant (all P<0.05). The JOA scores in the two groups were higher than those before treatment, the JOA scores of the observation group were higher than the control group , and the differences were statistically significant (all P<0.05). There was no statistically significant difference in the infrared temperature difference between the upper limbs of the observation group and the control group before treatments [(0.83±0.27) °C vs (0.87±0.29) °C, P>0.05]. Three months after the treatment, the temperature difference of infrared thermography in the upper limbs of the observation group was better than that of the control group (P<0.05), and the cure rate of the observation group was better than that of the control group, and the difference was statistically significant (68.75％vs 22.58％, P<0.05). There was no statistically significant difference in the total effective rate between the two groups (93.75％vs 90.32％, P>0.05). Conclusions The pulsed radiofrequency combined with the fixed-point lateral flexion and rotation realignment cervical manipulation in the treatment of radiculopathic cervical spondylosis was effective in improving pain, function and infrared imaging temperature of upper limbs.

On topological groups with an approximate fixed point property

Abstract A topological group G has the Approximate Fixed Point (AFP) property on a bounded convex subset C of a locally convex space if every continuous affine action of G on C admits a net ( x i ), x i ∈ C, such that x i - g ⁢ x i ⟶ 0 for all g ∈ G. In this work, we study the relationship between this property and amenability.

Influence of lumbar disc degeneration on the efficacy of lumbar fixed-point rotation manipulation in sitting position：a finite element study / 针灸推拿医学（英文版）

Objective:To investigate the influence of lumbar disc degeneration on the efficacy of lumbar fixed-point rotation manipulation in sitting position in treating lumbar intervertebral disc herniation (LIDH). Methods:We simulated lumbar fixed-point rotation manipulation of sitting position using three finite element models including a normal model, a mild degeneration model and a moderate degeneration model of L3-5, in which the herniated disc was assumed at the left rear of L4 disc and the rotation manipulation was carried out on the right side. The displacement and stress at the left rear of L4 disc of the three models were analyzed. Results:When lumbar fixed-point rotation manipulation in sitting position was carried out, a displacement and stress were generated at the left rear of L4 intervertebral disc of the three models directing forward. The displacement and stress in degeneration models were less than those in the normal model, and the smallest values were found in the moderate degeneration model. From normal model to mild and then to the moderate degeneration model, the displacement decreased by 36% and 59%, and the stress decreased by 22.3% and 45.2%, respectively. Conclusion:The lumbar disc degeneration affects adversely the effectiveness of lumbar fixed-point rotation manipulation in sitting position in the treatment of LIDH. The severer the lumbar degeneration, the greater the influence.

Observation of fixed -point cervical rotatory manipulation in face -upward position in cervical type cervical spondylosis / 中国基层医药

Objective To observe the clinical effect of the treatment of cervical spondylosis by the fixed rotation pulling method in the supine position.Methods 110 patients with cervical spondylosis met the inclusion criteria were selected as research objects,which were randomly divided into treatment group and control group,55 cases in each group,the treatment group were given fixed -point cervical rotatory manipulation in face -upward position, 1 times a day,3 times a week,1 weeks for 1 courses,the control group were received traditional massage treatment, 1 times a day,5 times a week,rest for 2 days,1 week for a course of treatment.both group had been treated for 2 courses, the cervical curvature were detected by borden,the cervical vertebra activity were detected by tape,then the effects were evaluated.Results The neck vertebral lordosis and activity degree of cervical flexion,extension,left rotation and right rotation,left and right flexion of the treatment group and the control group after treatment were significantly better than before treatment[(9.87 ±3.88)mm vs(6.75 ±3.40)mm,(3.22 ±1.16)mm vs (6.51 ±1.95)mm,(16.69 ± 1.49)mm vs (14.49 ±1.30)mm,(11.26 ±0.95)mm vs (14.07 ±1.16)mm,(11.59 ±1.28)mm vs (13.11 ± 1.71 )mm,(12.59 ±0.96)mm vs (13.02 ±1.14)mm,(12.09 ±0.91)mm vs (12.49 ±0.92)mm],the differences were statistically significant(t =6.226 and 3.558,5.554 and 3.408,4.702 and 3.382,5.003 and 3.605,7.004 and 3.882,5.036 and 3.554,4.818 and 3.588,all P <0.05).After treatment,the neck vertebral lordosis and Activity degree of cervical flexion,extension,left rotation and right rotation of the treatment group were significantly better than the control group,the differences were statistically significant(t =3.312,363.8,3.0338,3.251 and 3.422,all P <0.05).The effective rate of the treatment group was 96.3%,which of the control group were 81.8%,the difference was statistically significant(χ2 =11.444,P <0.05).Conclusion The fixed -point cervical rotatory manipulation in face -upward position has better effect than traditional massage in cervical type cervical spondylosis,which obvious advantages in improving the cervical physiological curvature and the activity,shortening the treatment time,to improve the clinical efficacy,which is worthy of clinical use.

Underwater turning movement during foraging in Hydromedusa maximiliani (Testudines, Chelidae) from southeastern Brazil / Movimento de giro subaquático durante o forrageio em Hydromedusa maximiliani (Testudines, Chelidae) do Sudeste do Brasil

A type of locomotor behavior observed in animals with rigid bodies, that can be found in many animals with exoskeletons, shells, or other forms of body armor, to change direction, is the turning behavior. Aquatic floated-turning behavior among rigid bodies animals have been studied in whirligig beetles, boxfish, and more recently in freshwater turtle, Chrysemys picta. In the laboratory we observed a different kind of turning movement that consists in an underwater turning movement during foraging, wherein the animal pivoted its body, using one of the hindlimbs as the fixed-point support in the substratum. We describe, analyze and quantify this movement during foraging in Hydromedusa maximiliani, using observations made in the laboratory. We studied 3 adult specimens (2 males, 1 female) and 2 non-sexed juveniles of H. maximiliani. They were kept individually in an aquarium filled with water and small fish. They were filmed, in dorsal view, at 30 frames per second. Sequences were analyzed frame by frame and points were marked on limbs and shell to enable analysis of variation in limb flexion and extension, as well as rotation movements. While foraging, turtles frequently turned their bodies, using one hind leg as the pivot point. This underwater turning movement, in addition to slow movements with the neck stretched, or staying nearly immobile and scanning the surroundings with lateral movements of the neck (in arcs up to 180°), and fast attacks of neck, may increase prey capture rates.

Um tipo de comportamento locomotor observado em animais com corpo rígido, que pode ser encontrado em muitos animais com exoesqueleto, conchas, ou outras formas de armaduras, para mudar de direção, é o girar o corpo num plano horizontal (Turning performance). O movimento de girar o corpo flutuando na água (Aquatic floated-turning performance) entre animais de corpo rígido tem sido estudado em besouros, peixe-caixa, e mais recente na tartaruga de água doce, Chrysemys picta. No laboratório nós observamos um tipo diferente de giro que consiste em um giro subaquático, não flutuando na água, durante o forrageio, onde o animal pivota seu corpo, usando uma das patas traseiras como um ponto fixo de suporte no substrato. Nós descrevemos, analisamos e quantificamos esse movimento durante o forrageio de Hydromedusa maximiliani, usando observações feitas em laboratório. Nós analisamos três adultos (2 machos, 1 fêmea) e dois juvenis não sexados. Eles foram mantidos individualmente em um aquário preenchido água e pequenos peixes. Eles foram filmados, em vista dorsal, a 30 imagens por segundo. As sequencias foram analisadas quadro a quadro, e pontos foram marcados nos membros e no casco para permitir analisar variações angulares durante a flexão e extensão, bem como movimentos de rotação. Os membros fizeram movimentos sequencias durante o movimento de giro, mantendo sempre um dos membros posteriores como ponto fixo. Esta estratégia de forrageio associada com movimentos lentos e pescoço esticado, ou permanecer praticamente imóveis apenas observando o ambiente através de movimentos laterais do pescoço, descrevendo trajetórias em um ângulo de 180°, e ataques rápidos com o pescoço, talvez aumente seu potencial na captura de presas.

Cervical spine motion segments and movement patterns in paraphysiologic zone by fixed-point cervical rotatory manipulation / 医用生物力学

Objective To measure movement patterns and size of cervical spine motion segments in paraphysiologic zone by fixed-point cervical rotatory manipulation. Methods The cervical spines from two fresh cadavers of young males with acute brain death were fixed on MTS testing machine. Fixed-point cervical rotatory manipulation was simulated and 3D coordinate of each cervical spine motion segment was collected to calculate physical movement pattern of each segment in paraphysiologic zone. Results The physiological rotation range of C1-C2 segments at left and right side was 22.65°and 17.68°, respectively, being the largest in passive activities under the effect of C4 fixed-point countertraction. The physiological activities of the remaining 3 segments were decreased in turn. The paraphysiologic zone of C4-C5 segments was the smallest, which was 0.55°and 0.84° at left and right side, respectively. The other segment would have a larger paraphysiologic zone if it was farther from fixed-point C4 segment. When the cervical spine rotated in paraphysiologic zone, each motion segment would have a coupling movement to the stretching and contralateral bending side. Moreover, except for C1-C2 segments, the remaining segments moved upward, while movement patterns of C2-C3 segments were opposite to the other segments in backward and forward movement and at horizontal side. Conclusions The size of paraphysiologic zone in each segment of the cervical spine is different. The farther from the fixed-point area of segment, the larger the paraphysiologic zone, and there are significant differences in segmental motion patterns of cervical spine in paraphysiologic zone.

Application of adaptive noise canceller based on fixed-point algorithm for real-time somatosensory evoked potential monitoring / 国际生物医学工程杂志

ObjectiveTo efficiently detect somsatosensory evoked potential (SEP) using field programmable gate array (FPGA) real-time system, fixed-point algorithm based adaptive noise canceller (ANC) was designed to improve signal to noise ratio (SNR). MethodsWith the optimization of important parameters that influence the performance of fixed-point algorithm ANC, the performance was compared to that of floating-point algorithm ANC which was isolated from the effect of quantization error. Results In the simulation study, the outputs of fixed-point-based ANC showed a little higher distortion from real SEP signals than that of floating-point algorithm ANC. In the optimal selection of μ value, fixed-point algorithm ANC could get as good results as floating-point algorithm. Conclusion With appropriate parameter values, fixed-point algorithm ANC is able to improve SNR of SEP as well as that of fixed-point algorithm ANC.

Evaluation on normalized HPLC fingerprints of Shegan Antiviral Injection / 中成药

AIM:To establish the normalized chromatographic fingerprints(NCFP) of Shegan Antiviral Injectionl(Rhizoma Belamcandae,Flos Lonicerae japonicae,Herba Artemisiae scopariae,Radix Bupleuri,etc.)(SGKBDI) and to evaluate them by using the 25 relatively normalized parameters.METHODS:The chromatographic fingerprints of the eight herbal drugs,two intermediates and preparation of SGI were determined by RP-HPLC.The 11 chromatographic fingerprints were evaluated by 25 relatively normalized index calculated by the software of Digitalized Evaluation System of Super-information Characteristic for Traditional Chinese Medicine Fingerprints 3.0.RESULTS:The best fingerprints were S4 Herba Artemislae Scopariae and S7 Radix Isatidis,the next were S2 Flos Lonicerae、 S5 Radix Bupleuri、 S6 Herba Taraxaci、 S8 Folium Isatidis,S10 intermediat Ⅱ and S11 Sgkbdi.CONCLUSION:The 25 characteristic parameters can be used to objectively,authentically and thoroughly reveal the separation of chromatographic fingerprints and its normalized characteristics of the NCFP of SGKBDI.