BACKGROUND: The change of the axial angle of the lower limb is related to the occurrence and development of osteoarthritis.OBJECTIVE: To analyze the correlation between the change of lower limb power line and pain area in the knee osteoarthritis patients.METHODS: Totally 65 knee osteoarthritis patients were selected as pain group and 30 healthy people were selected as control group. All the participants took anteroposterior and lateral knee radiographs through PACS imaging systems to collect six imaging indexes, including install index, the degree of tibiofemoral joint subluxation, tibiofemoral inside and outside joint clearance ratio, femoral angle, tibial angle and tibiofemoral angle. Knee osteoarthritis patients in pain group were divided into two common clinical pain areas which were proparea and medial area.RESULTS AND CONCLUSION: (1) The insall index, the degree of tibiofemoral joint subluxation, tibiofemoral inside andoutside joint clearance ratio between knee osteoarthritis patients in pain group and people in healthy control group hadsignificant differences. There was no statistical significance in the femoral angle, tibial angle and tibiofemoral angle. (2) In terms of the comparison between proparea and medial area in knee osteoarthritis patients in pain group, tibiofemoral joint subluxation degree was statistically different. (3) These findings suggest that there was a higher patella in knee osteoarthritis patients who were in pain, more severe in the degree of tibiofemoral joint subluxation, and more limited in tibiofemoral inside and outside joint clearance ratio. The degree of tibiofemoral joint subluxation of proparea was more severe than medial area in pain group.

OBJECTIVE:To investigate the effect of bayberry polyphenol(BPP) on thrombopenia induced by cytotoxic drug and radiation in mice and rats.METHODS:The mice and rats were treated with cyclophosphamide and 60Co-? radiation to establish the animal thrombopenia models.RESULTS:Platelet counts were increased in BPP treated animals with a significant difference compared with the controls(P

Yunnan sudden death syndrome (YSDS) is an abruptly fatal disease of unknown etiology, found mostly in central or northwestern mountain area (with altitude between 1,815 and 2,225 meters) of Yunnan province from June to September every year. It occurs mostly in young female adults, with high incidences in Lisu, Yi and Miao ethnics and high familial aggregation. The clinical manifestation of YSDS is changeful and the pathological characteristic is lack of specificity. The pathogenesis may be attributed to several factors including poor hygiene and lower socioeconomic conditions, lack of Selenium or Chromium, infection of Coxsackie B virus, mushroom consumption and special geological conditions. This article reviews the epidemiologic features, clinical manifestations, pathological features, etiology and hypothesis in order to provide clues for the research of YSDS.
Adult ; China ; Death, Sudden/pathology* ; Female ; Humans ; Syndrome

Objective To evaluate the clinical effect of edaravone injection on patients with early cerebral ischemia (ECI) after clipping of intracranial aneurysm.Methods Seventy-eight patients with intracranial aneurysms were randomly divided into control group and treatment group,with 39 cases in each group.Patients in two groups were given the treatments of high blood volume,high perfusion pressure,blood dilution and others.On the basis of control group,treatment group was intravenously dripped edaravone 30 g mixed in 0.9％ NaCl 100 mL,finished within 30 min.Control group was intravenously dripped 0.9％ NaCl 100 mL.The treatment was lasted for 14 d.The neurological function recovery and prognosis of two groups were compared.Results After treatment,the neurologic function defect (NFD) scores in treatment and control groups were (7.36 ± 5.42),(10.71 ± 4.39) points (P ＜ 0.05).Barthel scores in treatment and control groups were (49.20 ± 13.32),(37.58 ± 11.46) points (P ＜0.05).The blood flow velocity in brain and incidence of cerebral vasospasm (CVS) in treatment group were (95.38 ± 19.60)cm · s-1,12.82％ (5/39 cases).In control group,blood flow velocity in brain and incidence of CVS were (118.25 ± 17.94)cm · s-1,33.33％ (13/39 cases).There was significant difference between the two groups (P ＜ 0.05).The Glasgow outcome score (GOS) of 5 points in treatment group was 79.49％ (31/39 cases),had significant difference with that in control group,which was 58.97％ (23/39 cases,P ＜ 0.05).Serum super oxide dismutase (SOD),nitric oxide (NO) and malonaldehyde (MDA) in treatment group were (93.26 ± 13.71) U · mL-1,(5.29 ±0.53) nmol · mL-1 and (63.29 ± 10.58) mol · L-1 after treatment.Cerebrospinal fluid SOD,NO and MDA in treatment group were (61.34 ±4.26) U · mL-1,(4.40 ± 0.25) nmol · mL-1 and (1.83 ± 0.37) mol · L-1 after treatment.Serum SOD,NO and MDA in control group were (80.20 ± 11.59) U · mL-1,(6.74 ±0.32) nmol · mL-1 and (50.91 ±9.37) mol · L-1 after treatment.Cerebrospinal fluid SOD,NO and MDA in control group were (54.29 ± 6.64) U · mL-1,(5.12 ± 0.83) nmol · mL-1 and (1.50 ± 0.24) mol · L-1 after treatment.There was significant difference between the two groups (P ＜ 0.05).There were no obvious adverse drug reactions in two groups.Conclusion The scavenging effect of edaravone on oxygen free radical in serum and cerebrospinal fluid could significantly reduce cerebral artery blood flow and CVS incidence in patients with ECI after clipping of intracranial aneurysm.

OBJECTIVES: To compare the short- and long-term hearing outcomes after successful inlay cartilage tympanoplasty between patients with small (< or =25%) and large (> or =50%) eardrums perforations. METHODS: This is a retrospective case series study conducted in a tertiary referral center. Twenty-five patients who underwent 27 procedures were enrolled. Their mean age was 60.26 years (range, 42 to 76 years). The mean follow-up time was 18.86 months (range, 12.30 to 35.83 months). The preoperative, initial postoperative, and long-term hearing results in patients with total repair of the eardrum were analyzed. RESULTS: In the small size group, the average (+/-standard deviation) air-bone gap (ABG) closure was 1.08+/-7.53 dB in the short-term and 2.33+/-11.56 dB in the long-term hearing examinations. There was no difference between short- and long-term ABG closure (P=0.689). In the large size group, the average ABG closure was 9.77+/-9.40 dB in the short-term and 16.25+/-6.01 dB in the long-term hearing examinations. There was a significant difference between short- and long-term ABG closure (P=0.029). CONCLUSION: Patients with large perforations have continuous hearing improvement and ABG closure for more than one year. In contrast, the short- and long-term postoperative ABGs are almost the same in patients with small perforations. More long-term postoperative follow-up of hearing results is necessary for large perforations.
Cartilage* ; Follow-Up Studies ; Hearing* ; Humans ; Inlays* ; Retrospective Studies ; Tertiary Care Centers ; Tympanic Membrane* ; Tympanoplasty*

Objectives: The early local vasodilator response to local warming is predominantly dependent on neural reflexes. However, it is suggested that systemic vasomotor activities are unaffected by a local warming at early stage. The purposes of this study were to assess the hypothesis that systemic vasomotor activities might make an adjustment at early stage of hand warming. Materials and Methods: Thirty-nine young volunteers who were healthy were recruited. Each participant received a right hand bathing at 40°C for 10 minutes. Doppler ultrasound technique was used to monitor the brachial artery mean blood velocity (aMBV) at the heated arm, and changes in aMBV were used to evaluate local vasodilator response to hand warming. Photoplethysmographic technique was used to monitor digital volume pulse (DVP) at the unheated finger, and changes in the DVP derived peak amplitude (DVPampl), reflection index (DVPRI), stiffness index (DVPSI), and heart rate (HR) were used to evaluate vascular distensibility of the unheated upper limb, small artery tone in the lower body, large artery stiffness, and cardiac regulation respectively. The data collected in each minute were averaged as an interval. Comparisons of aMBV, DVPRI, DVPSI, and HR at each interval with their respective baseline values were performed using one-way ANOVA. Results: Plots of one-minute intervals versus aMBV, DVPampl, DVPRI, DVPSI, and HR were shown in Figure. aMBV values presented significant increases with a early peak at the third minute. DVPampl presented significant decrease in the first minute and then reversed to a significant increase at the sixth minute. DVPRI presented a significant increase in the first three minutes, and then returned to the level of baseline. DVPSI and HR did not present any significant changes. Conclusion: At the period of early local vasodilator response to hand warming, systemic vasomotor activities did make a significant adjustment by decreasing vascular distensibility of the unheated upper limb and increasing small artery tone of the lower body, though the activities in heart rate and large artery tone were unaffected. Later, vascular distensibility of the unheated upper limb made a reverse adjustment and reached a significant increase.

OBJECTIVESTo compare short-term and long-term change of paraspinal muscle between percutaneous and open pedicle screw fixation in the treatment of thoracolumbar fractures.

METHODSThirty-three patients were divided into four groups: short-term percutaneous pedicle screw fixation group, short-term open pedicle screw fixation group, long-term percutaneous pedicle screw fixation group, and long-term open pedicle screw fixation group. Paraspinal muscle were studied by needle electromyography and CT. Cross-sectional area and color grade information of paraspinal muscle were measured using CT image.

RESULTSThe area and color grade of paraspinal muscle changed significantly after surgery. The color grade of paraspinal muscle showed significant change while the muscle area observed no significant change in the two short-term groups; There was significant change in paraspinal muscle area, however no significant change was found in muscle color grade of the two long-term groups. In electromyography study the results showed that there was significant difference in the two short-term groups, however no significant difference existed in the long-term groups. There was no significant difference of patients treated by the two surgical technique in long-term function evaluation.

CONCLUSIONBoth percutaneous and open pedicle screw fixation damage paraspinal muscle, however the muscle showed less injury treated by percutaneous pedicle fixation.

Adult ; Bone Screws ; Female ; Follow-Up Studies ; Fracture Fixation, Internal ; instrumentation ; methods ; Humans ; Lumbar Vertebrae ; injuries ; Male ; Middle Aged ; Muscles ; pathology ; physiopathology ; Spinal Fractures ; pathology ; physiopathology ; surgery ; Thoracic Vertebrae ; injuries ; Time Factors

OBJECTIVETo appraise the value of clinical treatment of percutaneous reduction and fixation of osteoporotic fractures for the proximal humerus in a geriatric population.

METHODSPostoperation complication, mortality in hospital and within the first three months postoperation, operation time, blood transfusion requirement, the functional outcome of the shoulder had been analysed and observed in 37 cases for open and closed fixation.

RESULTSClosed reduction provided the benefit of obtaining and holding adequate reduction without the soft-tissue dissection of open reduction and internal fixation. The general complication and mortality in the first three months postoperation in the open reduction and internal fixation cases were more severe than the percutaneous cases.

CONCLUSIONSOpen operation increases the risk of the geriatric population with osteoporotic proximal humerus fracture; percutaneous reduction and fixation may be preferable.

Aged ; Aged, 80 and over ; Female ; Fracture Fixation, Internal ; methods ; Humans ; Male ; Minimally Invasive Surgical Procedures ; Osteoporosis ; complications ; Postoperative Complications ; prevention & control ; Shoulder Fractures ; etiology ; surgery ; Treatment Outcome

OBJECTIVETo introduce the technique of minimally invasive percutaneous pedicle screws osteosynthesis (MIPPSO) and compare the preliminary clinical outcomes of the treatment of thoraco-lumbar vertebra fracture with traditional open pedicle screws osteosynthesis (TOPSO).

METHODSUsing the "C" arm fluoroscopic guidance, the pedicle screws were put through new-designed instrumentation and inserted percutaneously with fifty cases of thoraco-lumbar vertebra fracture. Semi-Laminectomy were made in the heavy-occupation side through the incision of 4 cm. Vertebroplasty were made through pedicle of disease vertebrae. perioperative parameter and the index of image were compared with the treatment of traditional open pedicle screws osteosynthesis in other fifty cases.

RESULTSThe consumed time of operation in the MIPPSO group and the TOPSO group made no significant difference (P >0.05), but the length of incision, injury of paraspinal muscles, bleeding of operation, drain of postoperation, pain of postoperation, spending time of hospitalization were all significantly different between the two group (P <0.05). Each group compared to itself between preoperation and postoperation, the vertebral height, the height of intervertebral disk, Cobb's angle and the occupation index of vertebral canal were all significantly different (P <0.05). however compared to each other, whether preoperation or postoperation, there were not significant different in the index of image (P >0.05).

CONCLUSIONSThe technique of minimally invasive percutaneous pedicle screws osteosynthesis (MIPPSO) has the advantages of simple manipulation, safety, small trauma, less bleeding, light pain, quickly recovery and short hospitalization time.

Adult ; Female ; Humans ; Laminectomy ; methods ; Lumbar Vertebrae ; injuries ; surgery ; Male ; Middle Aged ; Minimally Invasive Surgical Procedures ; Retrospective Studies ; Spinal Fractures ; surgery ; Spinal Fusion ; instrumentation ; methods ; Thoracic Vertebrae ; injuries ; surgery ; Treatment Outcome

OBJECTIVETo investigate the frequency of micrometastasis in levels lII - IV of clinical negative neck (cN0) in patients with squamous cell carcinoma (SCC) of oral tongue, and to discuss the management of cervical lymph node for cN0 tongue SCC.

METHODSA total of 471 cervical lymph nodes derived from 25 patients with cN0 tongue SCC, including 263 lymph nodes in level III and 208 lymph nodes in level IV, were included in this study. All lymph nodes were re-examined by anti-cytokeratin (CK) immunohistochemical staining combined with semi-serial section per 500 microm.

RESULTSAmong the 25 cases, seven patients were confirmed harboring metastasis in 11 lymph nodes of level III, and no positive lymph node in level IV was detected by routine hematoxylin-eosin (HE) staining. 11 positive lymph nodes in level IIl, which confirmed by HE staining, were also detected by immunohistochemical staining with CK combined with semiserial section. Among the 460 cervical lymph nodes in which HE staining did not show metastasis, only one lymph node in level III harboring a 2.0 mm x 1.5 mm micrometastasis was detected by immunohistochemical staining with CK, and no positive lymph node in level IV was detected by immunohistochemical staining with CK.

CONCLUSIONThe frequency of occult metastasis in level IV was very low, so it seemed unnecessary to dissect level IV for all patients with cN0 tongue SCC.

Adult ; Aged ; Carcinoma, Squamous Cell ; Female ; Humans ; Keratins ; Lymph Nodes ; Lymphatic Metastasis ; Male ; Middle Aged ; Neck ; Neoplasm Micrometastasis ; Tongue ; Tongue Neoplasms