Adult ; Arthroscopy ; Bursa, Synovial ; surgery ; Chondroma ; surgery ; Female ; Humans ; Middle Aged

OBJECTIVETo explore the effectiveness of hamstring tendon graft embedding reconstruction of medial patellofemoral ligament for the treatment of recurrent dislocation of the patella.

METHODSFrom March 2008 to June 2013,67 patients with recurrent dislocation of patella were treated, including 28 males, 39 females with an average age of 22 years ranging from 10 to 42 years old. The clinical manifestations involved knee joint instability,"giving way", sense of patellar dislocation, anterior knee pain. All 67 patients underwent arthroscopic hamstring tendon graft embedding reconstruction of the medial patellofemoral ligament. The curative effect were evaluated by preoperative and postoperative Lysholm score and Q angle changes.

RESULTSAll cases were followed up after operation and the mean follow-up time was(27.5±13.4) months(4 to 69 months). Postoperative incision were healed well and no patellar dislocation or subluxation occurred. Lysholm score improved from preoperative 76.35±2.86 to 82.71±2.29 postoperatively; Q angle decreased from preoperative (18.75±2.33)° to postoperative(13.28±1.75)°.

CONCLUSIONThe method for the reconstruction of medial patellofemoral ligament can provide enough tension, patellar stability.imoroving the function of knee ioint.

Adolescent ; Adult ; Child ; Female ; Humans ; Male ; Patellar Dislocation ; surgery ; Patellar Ligament ; surgery ; Patellofemoral Joint ; surgery ; Reconstructive Surgical Procedures ; methods ; Recurrence ; Tendons ; transplantation

OBJECTIVETo explore causes of gluteal muscle contracture induced anterior knee pain and curative effect of arthroscopic release.

METHODSFrom March 2002 to August 2013,36 patients with gluteal muscle contracture induced anterior knee pain were treated, including 15 males, 21 females, aged from 9 to 40 years old with an average (18.7±7.2) years old; the courses of diseases ranged from 4 to 30 years. The clinical manifestations involved limited to symmelia, positive Ober sign, buttocks touch contracture belts, knee and patella slide to lateral when doing squat activities. All patients were performed gluteal muscle contracture release under arthroscopic. Postoperative complications were observed, Kujala scoring before and after operation was used for compare curative effect.

RESULTSAll patients were followed up with an average of 29 months. The incision were healed well, and no complications were occurred. Postoperative Kujala score were improved more than preoperative.

CONCLUSIONGluteal muscle contracture release could alleviate hypertension of lateral patella, and palys an important role in preventing patellofemoral arthritis.

Adolescent ; Adult ; Buttocks ; Child ; Contracture ; physiopathology ; Female ; Humans ; Knee ; Male ; Pain ; etiology

OBJECTIVETo evaluate the clinical outcome of arthroscopic repair method of meniscus injury with Fast-fix under local anesthesia.

METHODSFrom October 2005 to September 2012,106 patients with meniscus injuries admitted into our - hospital were studied, including 74 males and 32 females, ranging in age from 13 to 71 years old, averaged 27.6 years old. The duration of the disease ranged from 15 days to 5 years. The main clinical manifestations included knee joint pain after exercise, joint locking, pressing pain of knee joint and positive McMurray signs. The MRI showed meniscus tear or degeneration. Arthroscopic repairing surgeries were performed with Fast-fix under local anesthesia. Each patient was assessed with VAS pain evaluation and Lysholm knee-joint score system before and after operation. All the patients were followed up more than 1 year.

RESULTSOne hundred and 2 patients were followed up by recording subjective symptoms, clinical examinations and questions naires for an average of 2.6 years (ranged, 1.1 to 8 years), and 4 patients lost follow-up. All the 102 patients had no anesthetic complications. Ninety-six patients had normal subjective symptom and clinical examinations. Four patients had a mild ache with activities,2 patients had moderate pain after activities with joint space pressing pain. VAS pain evaluation and Lysholm knee-joint score after operation both were much better than that before operation.

CONCLUSIONonclusion: Local anesthesia can provide nice circumstances for surgeries. Arthroscopic repair using Fast-fix is an idea method for meniscus injury, especially for the posterior horn tear of medial meniscus, which is simple and convenient with less complications, and satisfactory results.

Adolescent ; Adult ; Aged ; Anesthesia, Local ; methods ; Arthroscopy ; methods ; Female ; Humans ; Knee Injuries ; surgery ; Magnetic Resonance Imaging ; Male ; Menisci, Tibial ; surgery ; Middle Aged ; Tibial Meniscus Injuries ; Visual Analog Scale ; Young Adult

OBJECTIVETo investigate surgical procedure and clinical effects for the treatment of patellofemoral osteoarthritis (PFOA) with arthroscopic patelloplasty and circumpatellar denervation.

METHODSTotally 156 patients with PFOA (62 males and 94 females; aged from 45 to 61 years old with an average of 52) were treated from September 2011 and March 2013. The clinical manifestations included recurrent swelling and pains on knee-joint,and aggravated pains upon going up/down-stairs, squatting-down, or standing-up. PFOAs were treated with arthroscopic patelloplasty and circumpatellar denervation. The therapeutic effects before and after surgery were evaluated by Lysholm scores and Kujala scores. The therapeutic effects were graded by classification of cartilage injury degrees.

RESULTSTotally 149 cases were successfully followed up for 14.8 months. The incisions were healed well and no complication were occurred. Lysholm score was improved from 73.29 preoperatively to 80.93 postoperatively and average Kajala score from 68.34 preoperatively to 76.48 after surgery. This procedure was highly effective for patients with I - III degree cartilage injury, while not for patients with IV degree cartilage injury.

CONCLUSIONFor PFOA patients, arthroscopic patelloplasty and circumpatellar denervation is effective for significantly relieving anterior knee pains, improving knee-joint functions and quality of life, and deferring arthritic procession.

Arthroscopy ; Denervation ; Female ; Humans ; Knee Joint ; innervation ; surgery ; Male ; Middle Aged ; Osteoarthritis, Knee ; physiopathology ; surgery ; Range of Motion, Articular ; Treatment Outcome

OBJECTIVETo observe the effect of volatile oil of amomum (VOA) on the expressions of mastocarcinoma-related peptide (PS2) and platelet activating factor (PAF) in helicobacter pyloriassociated gastritis (HPG) and to analyze its potential mechanism.

METHODSEighty patients with HPG were randomly assigned to two groups, 42 patients in the treated group treated with 0.5 mL VOA, thrice per day; and the 38 patients in the control group receiving Western tertiary medicinal treatment. Gastroscopic picture and helicobacter pylori (HP) infection (by quick urease and Warthin-Starry stain) of the gastro-membrane, expressions of PS2 and PAF (by immunohistochemical assay and Western blotting) as well as the contents of aminohexose and phospholipid (by Neuhaus method) in the gastric membrane of all patients were detected before treatment and 4 weeks after treatment. The clinical efficacy in the two groups was compared.

RESULTSThe total effective rate in the treated group was 88.1%, which was significantly higher than that in the control group (78.9%, P<0.05). After treatment, in the treated group, gastric membranous contents of aminohexose and phospholipid was increased, expression of PS2 elevated but that of PAF lowered, all showing significant difference as compared with those in the control group (P<0.01). In the control group, the expressions of PS2 and PAF changed insignificantly. The radical eliminating rate of HP in the treated group and the control group was insignificantly different between them (76.1% vs. 65.8%, P>0.05).

CONCLUSIONThe mechanism of VOA for anti-gastritis might be related with its action in increasing the expression of PS2 and decreasing the expression of PAF, and thus regulating the hydrophobicity of the gastric membrane.

Adult ; Aged ; Amomum ; Blotting, Western ; Chronic Disease ; Female ; Gastric Mucosa ; chemistry ; Gastritis ; drug therapy ; metabolism ; Helicobacter Infections ; drug therapy ; metabolism ; Helicobacter pylori ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Oils, Volatile ; adverse effects ; therapeutic use ; Peptides ; analysis ; Phospholipids ; analysis ; Platelet Activating Factor ; analysis

Ultramicroelectrode was usually used in scanning electrochemical microscope(SECM) as a probe. The redox reaction on the probe is a diffusion process. But the fast moving of probe in SECM will affect the diffusion process, resulting in unclear obtained images. A new SECM image-processing technique was proposed in this paper involving combination of LoG algorithm and New edge-directed interpolation (NEDI) interpolation algorithm. LoG algorithm is helpful for the clarity of SECM images, but leading to some loss of edge information. Fortunately, NEDI algorithm based on edge directed interpolation can solve this problem well. Two substrates with gold interdigitated electrode and gold electrode array were prepared by ion sputtering method. The SECM images were obtained of the gold interdigitated electrode, gold electrode array and ITO substrate printed with fingerprints. The corresponding images treated by LoG filter and these for NEDI interpolation were compared and analyzed. The image-processing technique combining the LoG algorithm with the NEDI interpolation algorithm can significantly improve the clarity and resolution of SECM image.

BACKGROUND: Matrix metalloproteinase-9 (MMP-9) plays a pivotal role in early atherosclerosis, vascular remodeling and development of atherosclerotic lesion. The potentially functional MMP-9 gene polymorphism may contribute to the susceptibility of acute coronary syndrome (ACS). This study aimed to investigate the association between two single nucleotide polymorphisms (-1562C>T, R279Q) of the MMP-9 gene in patients with ACS in the Uygur population of China. METHODS: This case-control study was composed of 361 ACS patients and 432 control subjects, who had undergone coronary angiography. Among the ACS patients, 162 (44.9％) had single-vessel disease, 145 (40.2％) had two-vessel disease, and 54 (14.9％) had three-vessel disease. The genotypes of the two selected SNPs were determined by the method of polymerase chain reaction and restriction fragment length polymorphism (RFLP-PCR). The relationship between the polymorphism of the MMP-9 gene and the severity of coronary arterial stenosis was analyzed. RESULTS: Analysis of the two SNPs showed that the frequency of CT and TT genotypes in patients with ACS was significantly higher than that in the control group (ACS vs. controls; CT+TT:25.5％ vs. 15.8％, P=0.001). And the -1562 gene allele (C/T) was significantly associated with acute coronary syndrome (ACS vs. controls; C allele: 85.7％ vs. 91.5％, T allele: 14.3％ vs. 8.5％, P<0.001). But the frequencies of CT+TT and CC genotypes were not statistically different among ACS patients with one, two and three or more significantly diseased vessels (P=0.55). The R279Q polymorphism site with regard to the association with ACS was not significant (P>0.05). The presence of CT or TT genotypes, assuming codominant effect of the T allele, was independently associated with increased risk of coronary artery disease when adjustment was made for age, body mass index, smoking, hypertension and diabetes mellitus [odds ratio=1.737 (95％ confidence interval, 1.337-2.257), P=0.018]. CONCLUSIONS: MMP-9-1562C>T polymorphism is associated with the susceptibility to ACS in the Uygur population of China. However, this mutation apparently is not related to the severity of coronary arterial stenosis. Another SNP (R279Q) polymorphism of MMP-9 is not significantly associated with the risk of ACS.

OBJECTIVETo evaluate the clinical efficacy and toxicity of vinorelbine (N) and epirubicin (E) as the neoadjuvant chemotherapy regimen in the treatment of locally advanced breast cancer (LABC).

METHODSFrom September 2001 to December 2004, 158 patients with LABC were treated with NE chemotherapy before operation. Neoadjuvant chemotherapy containing vinorelbine (N), 25 mg/m(2) (days 1 and 8) and epirubicin (E), 60 mg/m(2) (days 1) was administered every 3 weeks for three cycles before local treatment.

RESULTSResponse in the breast: the clinical objective response was 81.6% [23.4% (37/158) cCR and 58.2% (92/158) PR], 16.5% (26/158) SD and 1.9% (3/158) PD. Pathological complete response was found in 29 cases (18.3%). Eighteen cases (26.5%) who have positive FNA result in the axillary lymphnode before chemotherapy showed negative result in the surgery specimen. The most common toxicities were neutropenia, alopecia and nausea/vomiting. Neutropenia grade 3 - 4 was reported in 111 patients (70.3%) and there was no toxic deaths.

CONCLUSIONSThe combination of vinorelbine and epirubicin is a very active and well-tolerated regimen as neoadjuvant chemotherapy for the LABC.

Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast Neoplasms ; drug therapy ; pathology ; Chemotherapy, Adjuvant ; Drug Administration Schedule ; Epirubicin ; administration & dosage ; Female ; Humans ; Middle Aged ; Neoplasm Staging ; Treatment Outcome ; Vinblastine ; administration & dosage ; analogs & derivatives

OBJECTIVETo investigate the association between the tissue inhibitor of metalloproteinase-2 (TIMP-2) gene polymorphisms with the predisposition and disease severity of thoracic adolescent idiopathic scoliosis (AIS).

METHODSThree hundred and fifty-four female thoracic AIS patients treated from January 2007 to March 2009 and 210 healthy female who underwent health examination during March 2005 to June 2006 as normal controls were recruited in this study. One SNP-418G/C (rs8179090) in the promoter region were selected for TIMP-2 gene. PCR- RFLP was used for genotyping.

RESULTSNo significant differences of genotype and allele frequency distribution were found between AIS patients and normal controls (P > 0.05). In AIS patients, the frequency of C allele of the patients with the body mass index (BMI) < 17 kg/m(2) was significantly higher than those with the BMI > or = 17 kg/m(2) (P < 0.05), and the frequency of C allele of cases with the major Cobb angle > or = 40 degrees was significantly higher than that with Cobb angle < 40 degrees (P < 0.05). Among the patients who reached skeletal maturity without any interference of natural history, significantly higher average maximum Cobb angle was found in patients with GC and CC genotype compare with those with GG genotype.

CONCLUSIONSThe SNP-418G/C (rs8179090) in the promoter region of TIMP-2 gene may be associated with abnormal growth pattern and curve progression of thoracic AIS. TIMP-2 gene is a disease-modifier gene of thoracic AIS.

Adolescent ; Case-Control Studies ; Female ; Genetic Predisposition to Disease ; Genotype ; Humans ; Polymorphism, Genetic ; Polymorphism, Single Nucleotide ; Scoliosis ; genetics ; Tissue Inhibitor of Metalloproteinase-2 ; genetics