Can I Ski Doc?: Return to Skiing Following Total Joint Arthroplasty

BackgroundCurrently, there are little data on performance, safety, or return to downhill skiing after total joint arthroplasty (TJA). This leaves surgeons with little information for patient counseling regarding skiing.MethodsAn online survey was sent to 4360 patients who had undergone at least 1 primary TJA at a single academic center over the past 10 years (4 surgeons). The survey asked patients about their prior and current skiing activity including ability level, limitations, and reoperations. Demographics, patient-reported outcomes, and reoperations were also captured through chart review. Chi-squared, analysis of variance, and t-tests were used to compare demographics and outcomes. Paired t-tests were used to compare preoperative and postoperative skiing levels.ResultsOf the 763 survey respondents, the average follow-up was 4.4 years (range 0.5-10.3). In total, 35.6% had never skied, 26.5% had not skied in the 5 years prior to surgery (remote), and 37.9% had skied in the 5 years prior to surgery (recent). Seventy percent of recent skiers returned to skiing after surgery, compared to 11.9% of remote skiers. The majority of skiers, mostly advanced, returned to their prior level. There was no difference in return rates in those with a single total hip arthroplasty vs total knee arthroplasty vs multiple TJAs. Rates of reoperation were not significantly different between patients who did and did not return to skiing.ConclusionThe majority of recent skiers were able to return to skiing after TJA at their same level without an increase in reoperation rate. Further studies are needed to determine long-term consequences of skiing after TJA.     

Impact of sleeve gastrectomy on hip structural analysis in adolescents and young adults with obesity

BackgroundSleeve gastrectomy (SG), the most commonly performed metabolic and bariatric surgery, is associated with reductions in areal bone mineral density at multiple sites, and changes in bone structure at the distal radius and tibia without reductions in strength estimates at these peripheral sites. Data are lacking regarding effects on hip strength estimates.ObjectiveTo evaluate effects of SG on measures of hip structural analysis in adolescents and young adults over 12 months using dual-energy x-ray absorptiometry.SettingsTranslational and Clinical Research Center.MethodsWe enrolled 48 youth 14- to 22-years old with moderate-to-severe obesity; 24 underwent SG and 24 controls were followed without surgery (18 females, 6 males in each group). Hip structure was assessed using dual-energy x-ray absorptiometry at baseline and 12 months. Analyses are adjusted for age, sex, race, and the baseline bone measure.ResultsThe SG group lost 25.9% weight versus .3% in controls. Compared with controls, SG had reductions in narrow neck, intertrochanteric and femoral shaft bone mineral density Z-scores (P ≤ .012). Furthermore, SG had greater reductions in narrow neck and intertrochanteric region (but not femoral shaft) cross-sectional area, cortical thickness, cross-sectional moment of inertia and section modulus, and increases in buckling ratio (P ≤ .039). Differences were attenuated after adjusting for 12-month body mass index change. At 12 months, differences were minimal after adjusting for age, sex, race, and weight.ConclusionsOver 12 months, SG had negative effects at the narrow neck and intertrochanteric regions of the hip, but not the femoral shaft. Reduced body mass index may compensate for these deleterious effects on bone.     

坐骨重叠征与发育性髋关节脱位手术后再脱位的相关性分析

目的提出坐骨重叠征(ischium overlap sign,IOS)的概念,并分析其与发育性髋关节脱位(developmental dysplasia of the hip,DDH)手术后再脱位的关系。方法回顾性分析2013年9月至2017年5月山东大学附属省立医院治疗的88例(105髋)DDH患儿病例资料,其中男童16例、女童72例;平均年龄12(5~24)个月,平均随访时间34(15~59)个月;双侧17例,左侧63髋,右侧42髋;1髋为髋臼发育不良,11髋半脱位,93髋全脱位。术中行髋关节造影检查,按照Bowen标准选择闭合或切开复位石膏固定术。IOS是指在人类位髋关节造影平片上股骨头软骨内缘与坐骨外缘的重叠关系,二者重叠为Ⅰ度,相接为Ⅱ度,分离为Ⅲ度。将93髋全脱位按照IOS分度进行分组,比较组间再脱位发生率。结果 1髋髋臼发育不良和11髋半脱位者IOS均为Ⅰ度。93髋全脱位中IOSⅠ度14髋,Ⅱ度39髋,此两组均行闭合复位石膏固定,无再脱位病例;Ⅲ度40髋中,闭合复位石膏固定17髋,6髋再脱位;切开复位石膏固定23髋,1髋再脱位。本研究发现Ⅲ度组的再脱位发生率(7/40,17.5%)高于其他两组(P=0.006)。IOS为Ⅲ度的40髋中,闭合复位的再脱位发生率(6/17,35.3%)高于切开复位(1/23,4.4%),差异有统计学意义(X^2=4.518,P=0.034)。结论 IOS与DDH术后再脱位有一定的关系,IOS为Ⅲ度的髋关节如行闭合复位,再脱位的风险较高。     

不同麻醉方法对超高龄髋部骨折手术患者围术期血压的影响

目的探讨不同麻醉方法对超高龄髋部骨折患者围术期血流动力学的影响。方法选择2017年5月～2019年2月在我院行髋部骨折手术的患者92例,年龄≥90岁,随机分为全身麻醉(general anesthesia,GA)组和硬膜外麻醉(epidural anesthesia,EA)组,每组46例。GA组患者行全身麻醉,EA组患者行硬膜外麻醉。记录术前静息血压(T0)、麻醉诱导或硬膜外起效后血压(T1)、切皮时血压(T2)和术后当天(Day 0)、术后第1天(Day 1)、术后第2天(Day 2)的血压及术中低血压次数。用查尔森合并症指数(Charlson Comorbidity Index,CCI)比较有和无分层情况下两组各时间点的平均动脉血压(MAP)及术中低血压次数。结果 T1、T2时间点GA组MAP低于EA组(P0.05),其余时间点MAP无统计学差异。EA组患者低血压次数少于GA组(P0.05)。亚组分析中,CCI≥3时,Day 0时间点EA组MAP低于GA组(P0.05),其余时间点MAP无统计学差异(P0.05)。CCI≥3时,两组低血压次数无统计学差异(P0.05)。结论超高龄髋部骨折手术患者硬膜外麻醉较全身麻醉在血流动力学上更稳定。但在有多个合并症的患者中,两者差异并不明显,且硬膜外麻醉术后当天容易发生低血压。