1.Ceramic on Ceramic or Ceramic-on-polyethylene for Total Hip Arthroplasty: A Systemic Review and Meta-analysis of Prospective Randomized Studies.
Yu-Lei DONG ; Tao LI ; Ke XIAO ; Yan-Yan BIAN ; Xi-Sheng WENG
Chinese Medical Journal 2015;128(9):1223-1231
BACKGROUNDWear debris of polyethylene has become a restraining factor of the durability for total hip arthroplasty (THA). Ceramic on ceramic (COC) has better wear resistance while the squeaking sound and prosthesis fracture are of concern. It is still a controversy that bearing couples are better for THA.
METHODSWe performed a systematic review of all English articles identified from PubMed (1966-), Embase (1980-) and the Cochrane Library. Clinical outcomes, complications, revision rates, and radiographic outcomes of COC-THA and ceramic on polyethylene (COP)-THA were compared and evaluated.
RESULTSEight prospective randomized trials enrolling a total of 1508 patients and 1702 THA surgeries were identified. Our results demonstrated the prosthesis fracture and the squeaking sound is significantly higher in COC group and higher wear rate of the COP. Hip function, loosening rate, dislocation rate, revision rate, and the osteolysis rate were comparable between two groups. According to Grading of Recommendations Assessment, Development and Evaluation system assessment, the strength of evidence was high for prosthesis fracture, dislocation, osteolysis, and moderate for radiolucent line or loosening, hip noise, and revision.
CONCLUSIONSUp to now, there is insufficient evidence to identify any clinical advantage of COC compared with COP. Longer follow-up of larger randomized trial is needed to clarify the outcomes.
Arthroplasty, Replacement, Hip ; methods ; Ceramics ; therapeutic use ; Hip Prosthesis ; Humans ; Polyethylene ; therapeutic use
9.Randomized controlled trial of the absorbency of four dressings and their effects on the evaporation of burn wounds.
Jiong CHEN ; Chun-mao HAN ; Guo-liang SU ; Zhi-jian TANG ; Shi-jie SU ; Xiao-wei LIN
Chinese Medical Journal 2007;120(20):1788-1791
BACKGROUNDWound dressings are divided into traditional and new types. The new dressings are thought to accelerate wound healing. The purpose of this study was to supplement the scanty data on the absorbency of the new dressings and their effects on evaporation from the burn surface.
METHODSThe water absorption rate of four dressings (carbon fiber dressing, hydrogel dressing, silver nanoparticle dressing, and vaseline gauze) were measured by the immersion-weight gain method. A total of 120 inpatients with 10% superficial partial-thickness burn wounds were randomly assigned to four groups, each with 30 participants. Carbon fiber dressing, hydrogel dressing, and silver nanoparticle dressing were used in groups A, B, and C as the primary dressing, and traditional vaseline gauze was used in group D as the control. Multi-spot evaporation from normal skin and naked wound, and from wounds covered with each of the four dressings was measured post-burn on days 1, 3, 5, and 7 by an EP-I evaporimeter under conditions of 21 degrees C - 22 degrees C ambient temperature and 74% - 78% humidity.
RESULTSThe absorption rates of the four dressings were 988% with carbon fiber dressing, 96% with silver nanoparticle, 41% with vaseline gauze, and 6% with hydrogel. Evaporation from the naked burn wounds was about 1/3 higher than from normal skin (P < 0.01). Compared with wounds without applied dressing, evaporation from dressed wounds decreased and was time-dependent (P < 0.01). The evaporation of wounds with carbon fiber dressing was the lowest ((13.40 +/- 2.82) mlxh(-1)xm(-2), P < 0.01) on day 1 post-burn, compared with the other groups.
CONCLUSIONAll four dressings have water retention capacity while carbon fiber dressing has the highest absorption rate and shows the best containment and evaporation from the burn wound.
Adult ; Bandages ; Burns ; therapy ; Carbon ; therapeutic use ; Female ; Humans ; Hydrogel, Polyethylene Glycol Dimethacrylate ; therapeutic use ; Male ; Middle Aged ; Nanoparticles ; Petrolatum ; therapeutic use ; Silver ; therapeutic use ; Volatilization ; Wound Healing
10.Clinical features of antiviral therapy-induced thyroid disease in patients with chronic hepatitis C.
Jun-Ping LIU ; Huan-Rong HOU ; Yi KANG ; Jia SHANG ; Yong-Ge CAO ; Shou-Qin LIANG ; Xiu JIN
Chinese Journal of Hepatology 2013;21(4):257-260
OBJECTIVETo investigate the clinical features of thyroid disease occurring in response to antiviral therapy in patients with chronic hepatitis C (CHC).
METHODSEighty-two patients diagnosed with CHC were recruited for study from our hospital between 2009 and 2010. All patients were given a 48-week course of antiviral combination therapy with pegylated-interferon (Peg-IFN; 180 mug qw ih) and ribavirin (RBV; 15 mg/kg bw). Patient sera was collected prior to treatment (baseline), at treatment weeks 24 and 48, and post-treatment week 24, and used to detect changes in levels of thyroid function markers, thyroid-specific and other autoantibodies, complement factors, and immunoglobulins (Igs). Differential expression of biomarkers was assessed between patients who developed thyroid disorder and those who did not.
RESULTSAt treatment week 48, 13.4% (11/82) of cases developed hypothyroidism, 3.7% (3/82) developed hyperthyroidism, 20.7% (17/82) tested positive for thyroglobulin antibody, and 22.0% (18/82) tested positive for thyroid peroxidase antibody. The patients who did not develop thyroid disease had significantly higher post-treatment levels (vs. baseline) of IgG (14.84 +/- 2.61 vs. 12.95 +/- 3.32 g/L, F = 10.458, P = 0.002) and C4 (0.26 +/- 0.09 vs. 0.22 +/- 0.08 g/L, F = 6.835, P = 0.011) and significantly lower IgM (0.86 +/- 0.48 vs. 1.00 +/- 0.42 g/L, F = 9.106, P = 0.003). The patients who developed thyroid disease showed no significant differences in the baseline and post-treatment levels of IgG, C4, or IgM. When the two groups of patients who did or did not develop thyroid disease were compared, there was no difference in the amount of patients who achieved sustained virological response.
CONCLUSIONAntiviral-induced thyroid disease in patients with refractory hepatitis C manifests as clinically-detectable abnormalities in serum levels of thyroid autoantibody and markers of hypothyroidism. Levels of other autoantibodies and Igs do not correlate with the development of thyroid disease in these patients, and thyroid disease does not appear to affect the efficacy of Peg-IFN + RBV antiviral therapy.
Antiviral Agents ; therapeutic use ; Drug Therapy, Combination ; Hepatitis C, Chronic ; drug therapy ; Humans ; Interferon-alpha ; therapeutic use ; Polyethylene Glycols ; therapeutic use ; Ribavirin ; therapeutic use ; Thyroid Diseases ; chemically induced
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