ABSTRACT
Objective:In order to compare the effect of ascending medial open-wedge high tibial osteotomy and descending medial open-wedge high tibial osteotomy on patellar height.Methods:Our group analyzed 77 patients of medical cases which were closely associated with medial open-wedge high tibial osteotomy for the treatment of knee varus deformity and medial compartment osteoarthritis from May 2011 to December 2018 and 77 cases were effectively followed up, including 36 males and 41 females with an average age of 59.4±10.5. By the way, there are 51 cases of ascending osteotomy and 26 cases of descending osteotomy. During these treatment, we adopted some scientific methods full-length standing anteroposterior radiograph,Miniaci method, Insall-Salvati index (ISI), Caton-Deschamps index (CDI) and Blackburne-Peel Index (BPI) to measure the corresponding parameters and changes in patellar height (PH) at different stages.Results:77 patients were enrolled, the mean follow-up time was 20.6 months (range, 12-60 months), ascending and descending high tibial osteotomy (HTO) show the average degree of varus correction (10.43°±2.67° and 11.16°± 2.80°) respectively. And at the same time, in these cases of ascending HTO, PH decreased by 8.1% (CDI method), 2 cases of low PH (the patellar height decreased by 10%, which is the low patellar) were measured (ISI method), 7 cases of low PH occurred (CDI and BPI). Instead, PH decreased by 4.5% (CDI method) in descending HTO,the difference was significant ( t=2.101, P=0.040). 22 cases of ascending HTO with varus correction less than 10 degrees, the PH decreased by 6.9%. By the way, the ISI method did not detect the occurrence of low PH, but we found one by CDI and BPI. The 29 cases with varus correction of more than 10 degrees in ascending HTO, and PH decreased by 10.4%. There were 2 low PH (ISI method), and 6 low PH (CDI and BPI), the difference was significant ( t=2.310, P=0.028). Conclusion:In ascending HTO, the low PH is closely related to the degree of varus correction. Conversely, The descending HTO did not influence PH.
ABSTRACT
Objective To know the prevalence of chronic obstructive pulmonary disease(COPD) in patients with obstructive sleep apnea-hypopnea syndrome(OSAHS) in Kunming Yunnan Province, and the clinical symptom of OS.Methods Retrospective study of 4 636 cases of patients with snoring, excluding COPD in addition to chronic respiratory disease and assess the patient`s condition.The test included AHI, BMI, Epworth sleepiness scale, lung function.The index of OS was confirmed by AHI>5 times/h and FEV1/FVC<70%.Results During the period of 2006 to 2012, he prevalence of COPD in patients with OSAHS was 10.1% [95% confidence interval (CI) 9.1%-11.1%] in Kunming Yunnan Province.And male`s OS prevalence rate is higher than the female(male 10.2%;female 9.7%).The OS patients` average age was 56.9±14.1, the mean AHI was (47.46±26.79) times/h, and the average FEV1/FVC was 60.09%±23.57%.Polysomnographyresults show that patients suffered obvious hypoxiaat night in both OSAHS group and OS group, but it was more significant in OS group.Pulmonary function test showed that OS patients have more serious chronic obstructive pulmonary disease.Conclusions The prevalence of COPD in OSAHS patients was high in Kunming, Yunnan Province, and the prevalence rate in old group reached more than 24%.In addition, the sympotms of patients with OS were more severe than those with only OSAHS or COPD in lung function and hyoxemia.