Recently imageless navigation systems have been developed rapidly, and have become major navigation system in clinic. It comprises computer workstation, infrared optical localizing system, foot control pedal and navigation software. Currently, imageless navigation systems have been used successfully in total knee arthroplasty, uni-compartment arthroplasty, total hip arthroplasty, hip surfacing arthroplasty, total shoulder arthroplasty, anterior cruciate ligament reconstruction and peri-articular osteotomy of knee, etc. The first OrthoPilot imageless navigation system was used by Saragaglia et al in total knee arthroplasty in January 1997, and many clinical studies have been conducted. The clinical results show that this kind of systems greatly improves operative accuracy, and reduce cases beyond ideal range. It shows accuracy as CT-based navigation systems, and they can be commonly used as standard navigation systems in clinic.

The purpose of this work was to reestablish the respiratory abduction of the paralyzed vocal cord through reinnervation of the posterior cricoarytenoid (PCA) muscle by partial phrenic fibres.In fifteen adult cats the adductor branch of the recurrent laryngeal nerve (RLN) of the right side was cut and its distal end ligated, while its proximal end was implanted into the PCA muscle belly.The whole RLN was then transected in the tracheo-esophageal groove and its distal stump anastomosed to the upper branch of the phrenic nerve.Direct laryngoscopy showed that the inspiratory abduction of the paralyzed vocal cord recovered within 40 d in all cats.80 d later, a larger abducent motion of the glottis was observed on the reinnervated side.Abduction was caused by reinnervation of the PCA muscle from phrenic motoneurons, as demonstrated by laryngeal electromyography and histological testings.The function of the diaphragm was preserved as revealed by monitoring of the intrathoracic pressure.

Humans ; Skull Base ; anatomy & histology ; surgery

Objective To observe the clinical effect of interferon -1 b (Yundesu)in the treatment of verru-ca planae.Methods 1 1 0 patients with verruca pianae were randomly divided into observation group and control group,55 cases in each group.The observation group was given Yundesu injection 30 g once every day in first week, and once every other day in another three weeks.The control group was given orally mannatide 1 0ml two times every day.The leision changes of the two groups were observed after 4 weeks therapy.Results The total effective rate of the observation group was 92.7%(51 /55),which of the control group was 72.78%(40 /55),the difference between the two groups was statistically significant (χ2 =7.70,P <0.01 ).No adverse reactions in the two groups were observed.Conclusion The clinical effect of Yundesu is more prominently beneficial to patients with verruca planae.

Hearing ; Humans ; Neuroma, Acoustic ; surgery ; Neurosurgical Procedures ; methods

China ; Hearing Tests ; Humans ; Infant, Newborn ; Neonatal Screening

Tinnitus is the most common disease in Otology, and extremely difficult for treatment in clinic, abnormal events in the cochlea (the abnormal events can result in abnormal neuronal activity in central auditory pathways that can then be finally perceived as tinnitus). Neuroplasticity events at the auditory cortex (AC) have been reported to include hyperactive of cortical neurons and an increase in neuronal synchronization. Our recent studies showed the changes markedly, in the expression of the excitatory glutamate receptor subtype NR2B in mRNA and protein levels, and also some changes in synaptic ultrastructure of neurons in auditory cortex of tinnitus animal. We propose that the mechanisms of tinnitus centralization may arise from abnormal events in the cochlea, and result in abnormal neuronal activity at multiple levels which promote abnormal propagation of neural activity in the central auditory pathway. The plastic change may be positive and adaptive as with learning or memory, or in the compensation after abnormal events in the cochlea that results in new neuronal networks that restore normal function. Alternatively, the neuroplasticity changes might be maladaptive leading perhaps to an imbalance in excitatory and inhibitory events in the brain. Indeed, tinnitus may be the consequence of such maladaptive neuroplasticity brain alterations (synaptic structure) has even gone a step further and described tinnitus as the perceptual manifestation of plastic brain changes that result in abnormal neuronal activity. The neuroplasticity changes may also make tinnitus persists, eventually leading to the existence of tinnitus cochlear-originated in the central pathway. They may also extend to non-sensory areas of the brain giving rise to the attentional and emotional aspects that often accompany the disorder. New pathophysiological insights maybe prompt the development of management approaches to directly target the neuroplasticity processes correlates of tinnitus.
Auditory Cortex ; Humans ; Neuronal Plasticity ; Tinnitus ; diagnosis ; etiology ; therapy

Objective To investigate the correlation between the serum levels of homocysteine (Hcy) ,folate acid (FA) and vita‐min B12 (VitB12 ) with cerebral infarction .Methods The enzymatic cycling method and chemiluminescence immunoassay were used to detect the serum Hcy ,FA and Vit B12 levels in 60 patients with cerebral infarction ,and then the detection results were compared the results of 40 people undergoing physical examination in the same period .Results The serum Hcy level in the cerebral infarction group was (23 .16 ± 8 .17)μmol/L ,which was significantly higher than (8 .09 ± 2 .45)μmol/L in the control group(P<0 .01) ,and the serum FA and Vit B12 levels in the cerebral infarction group were (6 .12 ± 2 .19) ng/mL and (323 .92 ± 133 .79)μmol/L ,which were in the control group lower than (10 .57 ± 5 .70) ng/mL and (530 .85 ± 168 .56)μmol/L in the control group (P<0 .01) .The serum Hcy level in the cerebral infarction group showed the negative correlation with FA and VitB 12 levels ( r1 = - 0 .444 , r2 = -0 .535 ,P<0 .05) .Conclusion High hyperhomocysteinemia is an independent risk factor of cerebral infarction and is related to the decrease of FA and VitB12 .

Molecular targeted therapy (MTT) refers to a new therapy designed to interfere with a specific molecular target or signaling pathway that may have a significant influence in tumor growth or progression. MTT can inhibit cell proliferation and induce apoptosis by specific interventions in the signaling pathways of tumor cells. MTT exhibits potential as an effective treatment against cancer. This approach can improve the ability to kill cancer cells and reduce damage to normal tissues. MTT has gradually been used clinically in treating cancer and shown advantages over traditional methods. This paper reviews research progress in this targeted therapy to treat gynecological cancer.

Objective To explore the microsurgery technique and outcome of expanding translabyrinthine ap-proach resection large acoustic neuroma .Methods We have retrospectively studied clinical data and follow -up re-sults of 4 patients of large acoustic neuroma (≥5 cm ,the largest was 8 cm ;3 cases with servere sensorineualt hear-ing loss ,1 case with high frequenoy hearing loss ;1 case with blindness) in our hospital between January 2013 and April 2013 .All patients received expanding translabyrinthine approach microsurgery to resecting the tumors .Post-operative follow -up was 6~10 months .Results The large acoustic neuroma of 4 cases were totally removed via MRI reexamination after operation .Facial nerve in 3 cases were dissection retained ,and 1 case received facial nerve anastomosis .Six months after operatin ,one patient’s facial nerve function recovered from level Ⅲ to level Ⅱ ,the patient underwent facial nerve anastomosis with facial paralysis level Ⅵ recovered to level Ⅳ ,and the vision of pa-tient with blindness completely recovered to normal .Conclusion The expanding translabyrinthine approach can to-tally resect large acoustic neuroma and preserve facial nerve function .