Vitamin D insufficiency: A risk factor to vertebral fractures in community-dwelling elderly women

Objective

To determine the risk factors for the presence of moderate/severe vertebral fracture, specifically 25-hydroxyvitamin D (25-OHD).

Study design

Cross-sectional study conducted for 2 years in the city of São Paulo, Brazil including community-dwelling elderly women.

Methods

Bone mineral density (BMD), serum 25-OHD, intact parathyroid hormone (iPTH), calcium and estimated glomerular filtration rate (eGFR) were examined in 226 women without vertebral fractures (NO FRACTURE group) and 189 women with at least one moderate/severe vertebral fracture (FRACTURE group). Vertebral fracture assessment (VFA) was evaluated using both the Genant semiquantitative (SQ) approach and morphometry.

Results

Patients in the NO FRACTURE group had lower age, increased height, higher calcium intake, and higher BMD compared to those patients in the FRACTURE group (p < 0.05). Of interest, serum levels of 25-OHD in the NO FRACTURE group were higher than those observed in the FRACTURE group (51.73 nmol/L vs. 42.31 nmol/L, p < 0.001). Reinforcing this finding, vitamin D insufficiency (25-OHD < 75 nmol/L) was observed less in the NO FRACTURE group (82.3% vs. 93.65%, p = 0.001). After adjustment for significant variables within the patient population (age, height, race, calcium intake, 25-OHD, eGFR and sites BMD), the logistic-regression analyses revealed that age (OR = 1.09, 95% CI 1.04–1.14, p < 0.001) femoral neck BMD (OR = 0.7, 95% CI 0.6–0.82, p < 0.001) and 25-OHD <75 nmol/L (OR = 2.38, 95% CI 1.17–4.8, p = 0.016) remains a significant factor for vertebral fracture.

Conclusion

Vitamin D insufficiency is a contributing factor for moderate/severe vertebral fractures. This result emphasizes the importance of including this modifiable risk factor in the evaluation of elderly women.     

Haemoglobin predicts length of hospital stay after hip fracture surgery in older patients

Objectives

Treating anaemia in older patients who have undergone hip fracture surgery is to enhance functional recovery. The relationship between peri-operative haemoglobin levels and outcome after hip fracture surgery are controversial. We assessed whether higher haemoglobin levels predict length of hospital stay after hip fracture surgery in elderly subjects.

Study design

A follow-up study in a historical cohort was performed in 317 patients aged 65 years old undergoing hip fracture surgery over the period 2004–2006 at the Leiden University Medical Centre.

Mean outcome measures

Linear regression analysis was used to assess the association between pre- and post-operative haemoglobin level and length of hospital stay after controlling for age and sex.

Results

Anaemia after hip fracture surgery was present among 86% of the patients. Length of hospital stay after hip fracture surgery in elderly subjects with post-operative anaemia (10.7 days) was significantly longer than in elderly subjects without post-operative anaemia (7.5 days, p = 0.007). Post-operative haemoglobin levels and length of hospital stay were inversely related (p = 0.013). The length of hospital stay was not related with pre-operative haemoglobin level.

Conclusion

Higher postoperative haemoglobin levels predict shorter length of hospital stay after hip fracture surgery in the elderly. A definitive randomized clinical trial has to demonstrate whether this association is causal.     

人工关节置换术治疗高龄不稳定性股骨转子间骨折

目的探讨70岁以上高龄不稳定性股骨转子间骨折患者采用人工关节置换术的疗效。方法对2004年1月～2007年12月行人工关节置换术治疗的25例70岁以上不稳定性股骨转子间骨折患者进行回顾性分析。病人年龄70～85岁,平均76.5岁。随访期限6～24个月,平均15.2个月。应用Harris评分标准进行结果评价。结果患者均在术后4周下地负重行走。髋关节功能接近伤前水平,生活基本能够自理。髋关节功能按Harris评分：术前为84～97（90±4）分;术后为82～95（89±3）分。结论高龄股骨转子间骨折患者行人工关节置换术治疗,具有创伤小、手术时间短、卧床并发症减少、髋关节功能恢复快等优点,是一种比较理想的治疗手段。     

Vertebral fracture assessment in Moroccan women: Prevalence and risk factors

Introduction

Vertebral fracture assessment (VFA) is a fast, low-radiation technique which produces images that are of sufficient quality to be used to diagnose the presence of vertebral deformity consistent with fracture.

Objective

To study prevalence and risk factors of vertebral fractures using VFA in asymptomatic Moroccan women.

Methods

The study cohort consists of a population of 328 consecutive women aged over 50 (mean age, weight and BMI of 65 ± 6.5 (50–84) years, 72.0 ± 12.8 (42–125) and 29.4 ± 5.0 (17.1–45.8) kg/m², respectively). Lateral VFA images and scans of the lumbar spine and proximal femur were obtained by two technologists using a GE Healthcare Lunar Prodigy densitometer. Vertebral fractures were defined using a combination of Genant semiquantitative (SQ) approach and morphometry.

Results

68% of vertebrae from T4–L4 and 75% from T8–L4 were adequately visualized on VFA. Vertebral fractures (grades 2 or 3) were detected in 25.6% (84/328) of these women. Thirty-two of women with VFA-identified fracture (38.0%) had only a single vertebral fracture, while the other 61.9% had two or more. Fractures were most common in the mid-thoracic spine and at the thoraco-lumbar junction. As would be expected, the prevalence of VFA-detected fractures increased with age and as BMD declined. Stepwise regression analysis showed that presence of vertebral fracture was mainly related to the spine osteoporotic status, age older than 65, history of peripheral fracture and more than six parities.

Conclusion

Vertebral fractures are common in asymptomatic Moroccan women and are related to age, low BMD, history of fracture and multiparity.     

16例中青年股骨头骨折的临床治疗

[摘要] 目的 探讨和总结中青年股骨头骨折治疗的临床疗效。方法 随访我院自2001年2月~2012年5月手术治疗的16例中青年股骨头骨折病例，男12例，女4例；年龄23~54岁，平均（38.39±8.63）岁。PipkinⅠ型5例；Ⅱ型7例；Ⅲ型1例；Ⅳ型3例。采用Smith-Peterson入路10例，Kocher-Langenbock入路4例，Moore入路2例。骨块摘除3例，拉力螺钉固定13例，3例合并髋臼后壁骨折病例中2例采用重建钢板内固定，1例采用铆钉固定。结果 平均随访时间为（40.1±8.56）月（25.1~50月），所有骨折均愈合，无感染发生，无内固定失败，无接受髋关节置换的病例。按照Merle d’Aubigne和Postel评分，优良率为（9/16）56.3%，中（3/16）18.7%，差（4/16）25%。4例患者发生股骨头内固定术后缺血性坏死，5例患者发生了异位骨化，1例继发创伤性关节炎。结论 运用空心螺钉治疗中青年股骨头骨折可获得满意的早期疗效，但股骨头骨折术后并发症发生率相对较高，需对术后髋部功能进行长期随访     

Subsequent hip fracture in osteoporotic hip fracture patients

Purpose: A significant number of patients who have experienced previous surgical treatment for an osteoporotic hip fracture experience a subsequent hip fracture (SHF) on the opposite side. This study aims to analyze the risk factors and the correlation between osteoporosis and SHF on the opposite side in order to assess the usefulness of bisphosphonate treatment for the prevention of SHFs. Materials and Methods: We included 517 patients treated from March 1997 to April 2009 in this study. The inclusion criteria included previous unilateral hip fracture, without osteoporotic treatment, and a T-score less than -3.0 at the time of the fracture. We studied these patients in terms of death, SHF, alcoholism, living alone, dementia, dizziness, health status, osteoporotic treatment after fracture and bone mineral density (BMD). In total, 34 patients experienced a SHF. We selected another 34 patients without a SHF who had similar age, sex, body mass index, BMD, diagnosis, treatment and a follow up period for a matched pair study. We compared these two groups. The average follow up was 8.3 years and 8.1 years, respectively. Results: The mortality rate of the 517 patients was 138 (27%). The BMD at the time of fracture demonstrated no statistical difference between the two groups (p>0.05). Nine patients (26%) within the SHF group were prescribed Risedronate and 18 patients (53%) received the same treatment in the non-SHF group. There was a statistical relationship with the treatment of osteoporosis (p=0.026). The average BMD of patients with SHF was -5.13 and -5.02 in patients without SHF was (p>0.05). Conclusion: Although primary surgical treatments are important for an excellent outcome in osteoporotic hip fractures, treatment of osteoporosis itself is just as important for preventing SHFs.     

Calcium-vitamin D3 supplementation is cost-effective in hip fractures prevention

Objective: To assess the cost implications for a preventive treatment strategy for institutionalised elderly women with a combined 1200 mg/day calcium and 800 IU/day vitamin D₃ supplementation in seven European countries. Design: Retrospective cost effectiveness analysis based on a prospective placebo-controlled randomised clinical trial. Data sources: Recently published cost studies in seven European countries. Clinical results from Decalyos, a 3-year placebo-controlled study in elderly institutionalised women. Trials: Decalyos study, with 36 months follow-up of 3270 mobile elderly women living in 180 nursing homes, allocated to two groups. One group received 1200 mg/day elemental calcium in the form of tricalcium phosphate together with 800 IU/day (20 μg) of cholecalciferol (vitamin D₃), the other placebo. Results: In the 36 months analysis of the Decalyos study, 138 hip fractures occurred in the group of 1176 women, receiving supplementation and 184 hip fractures in the placebo group of 1127 women. The mean duration of treatment was 625.4 days. Adjusted to 1000 women, 46 hip fractures were avoided by the calcium and vitamin D₃ supplementation. For all countries, the total costs in the placebo group were higher than in the group receiving supplementation, resulting in a net benefit of €79 000–711 000 per 1000 women. Conclusion: This analysis suggests that the supplementation strategy is cost saving. The results may underestimate the net benefits, as this treatment has also shown to be effective in decreasing the incidence of other non-vertebral fractures in elderly institutionalised women.     

Individualizing fracture risk prediction

Low bone mineral density (BMD) and clinical factors (CRF) have been identified as factors associated with an increased relative risk of fractures. From this observation and for clinical decision making, the concept of prediction of the individual absolute risk of fractures has emerged. It refers to the individual's risk for fractures over a certain time period, e.g. the next 5 and 10 years. Two individualized fracture risk calculation tools that are increasingly used and are available on the web are the FRAX algorithm and the Garvan fracture risk calculator. These tools integrate BMD and CRFs for fracture risk calculation in the individual patient in daily practice. Although both tools include straightforward risk factors, such as age, sex, previous fractures, body weight and BMD, they differ in several aspects, such as the inclusion of other CRFs, fall risks and number of previous fractures. Both models still need to be validated in different populations before they can be generalized to other populations, since the background risk for fractures is population specific. Further studies will be needed to validate their contribution in selecting patients who will achieve fracture risk reduction with anti-osteoporosis therapy.     

加速康复外科在老年髋部骨折治疗中的应用进展

髋部骨折病人多为骨质疏松较为严重的老年病人。随着老龄化社会的到来以及人口增长加速,髋部骨折病人数量呈现明显上升趋势。老年髋部骨折病人卧床时间长,基础疾病多,具有较高的并发症发生率和死亡率。加速康复外科(Enhanced Recovery After Surgery,ERAS)被证明是有效的围手术期处理措施。通过降低手术创伤的应激反应、减少并发症、降低死亡率,达到加速康复的目的。本文就ERAS在老年髋部骨折病人治疗中的应用进展进行综述。     

股骨颈骨折直接行髋关节置换术与内固定失败后再行髋关节置换术的比较

目的 通过对股骨颈骨折直接行髋关节置换术与内固定失败后再行髋关节置换术临床结果的比较,为股骨颈骨折手术方式的选择提供依据.方法 回顾性分析随访2年的43例股骨颈骨折内固定失败后冉次行髋关节置换术(A组)和52例股骨颈骨折直接行髋关节置换术(B组)的临床资料,比较两组患者的手术情况、术后并发症、术后2年的髋关节功能和生活质量.采用Charnley评分法评定手术侧髋关节的疼痛、活动度和运动情况.采用欧洲生活质晕评分EQ-5D评分体系评定病人的健康生活质量.结果 A组和B组的手术时间、术中出血量、术后2年的髋关节功能评分和生活质量评分分别为:1.9±0.2和1.4±0.2小时、525.6±50.8和462.3±47.8ml、13.4±2.3和15.2±2.4、0.67±0.26和0.72±0.25分,两者比较均具有统计学意义(P<0.05).结论 内固定失败后再次行髋关节置换术临床效果较股骨颈骨折直接行髋关节置换术差,对于股骨颈骨折内固定容易出现骨折不愈合或缺血坏死的病例宜直接选择髋关节置换术.     

Clinical analysis of the rap stress stimulator applied for crus fracture after skeletal external fixation

Introduction

Open crus fracture is still difficult in clinical treatment because of the delayed fracture union and high rate of nonunion after the operation. A consensus has been reached that mechanical stress can promote fracture healing. We independently developed a stress stimulator, which can provide longitudinal pressure for the fixed fracture end of the lower legs to promote fracture healing. The purpose of this study is to explore the advantages and clinical effect of the rap stress stimulator applied for open crus fracture after skeletal external fixation.

Material and methods

One hundred and sixty-five patients (183 limbs) who suffered from open tibia and fibula fracture received skeletal external fixation, of which 108 limbs were treated with the rap stress stimulator after external fixation and 75 limbs were treated with regular functional exercises of muscle contraction and joint activity only. Then the fracture healing time and rate of nonunion were compared between the two groups.

Results

The mean fracture healing time and rate of nonunion in the group treated with the rap stress stimulator were 138.27 ±4.45 days and 3.70% respectively, compared to 153.43 ±4.89 days and 10.67% in the group treated without the stimulator.

Conclusions

The rap stress stimulator significantly shortened the fracture healing time and reduced the rate of nonunion for treating open tibia and fibula fractures.     

老年髋部骨折围手术期失血量的临床观察

目的通过观察髋部骨折围手术期血红蛋白水平改变,总结髋部骨折患者围手术期隐形失血量、总失血情况,探讨围手术期失血量的危险因素。方法选择北京市顺义区医院骨科2011年12月至2013年12月老年髋部骨折患者,记录患者一般情况,包括性别、年龄、并发症、骨折类型,手术方式（分别按照空心钉、关节置换、动力性髋螺钉和髓内钉的标准流程操作）、抗凝药物使用情况、出血量、手术时间等,根据患者血红蛋白水平波动、输血量计算患者隐形失血量、总失血量,通过方差分析及多因素线性分析计算围手术期间总失血量的独立危险因素。结果 2011年12月至2013年12月共有161例老年髋部骨折患者入选,经单因素方差分析及多因素线性回归分析,发现服用抗凝药物（均P=0.000）、手术方式（P=0.000,P=0.004）是围手术期出血量较多的独立危险因素。结论老年髋部骨折围手术期隐形失血量远远大于术中出血量,髓内钉术中出血量较关节置换、动力性髋螺钉（DHS）系统少,但隐形失血量、总失血量较其他三种手术方式明显增多,此外,服用阿司匹林等抗凝药物可增加术中出血量、隐形失血量及总失血量。     

Vertebral fractures in women aged 50 years and older with clinical risk factors for fractures in primary care

Background

The identification of vertebral fractures (VFs) is important for decisions on fracture prevention. Vertebral fracture assessment (VFA) was shown to be a patient-friendly and valid method for detecting undiagnosed VFs in (Dutch) women. However, this has only been investigated in women seeking care at secondary or tertiary institutions.

Objective

To investigate the prevalence of previously undiagnosed VFs in women in Dutch primary care using VFA.

Study design

A total of 566 Dutch women aged 50 years and older (mean age, 69 years; SD = 8.4) with clinical risk factors (CRFs) for fractures volunteered for dual-energy X-ray absorptiometry (DXA) measurement and VFA. VFs were defined semi-quantitatively using Genant's method.

Results

One CRF was present in each of 130 women, 274 had two, and 162 women had more than two CRFs. In 120 (21%) of the women, previously unknown osteoporosis (T-score ≤ −2.5 SD) was diagnosed, and in 174 (31%), a previously undiagnosed moderate or severe VF was found. No osteoporosis was found in 130 (75%) of the women with a VF. Based on the outcome of DXA, 21% of the women were eligible for treatment, while the combination of DXA and VFA resulted in a total of 250 (44%) women requiring treatment.

Conclusions

The percentage of previously unknown VFs diagnosed by VFA in women aged 50 years and older with one or more CRFs for fractures in primary care is high. When only using BMD measurements, only half the women eligible for treatment would actually receive this. We recommend performing VFA in all women aged 50 years and older who are referred for DXA based on Dutch case finding criteria.     

人工股骨头置换术治疗老年患者不稳定型股骨粗隆间骨折

目的通过对比人工股骨头置换术(artificial femoral head replacement,AFHR)与股骨近端防旋髓内钉(proximal femoral nail antirotation,PFNA)在治疗高龄患者不稳定型股骨粗隆间骨折的疗效,探究人工股骨头置换术在治疗高龄患者不稳定型股骨粗隆间骨折的可行性。方法回顾性分析2015年1月至2016年6月本院治疗的不稳定型股骨粗隆间骨折高龄患者共47例(均为单侧骨折),男28例,女19例,平均年龄为(80.83±4.83)岁。AFHR组27例,男17例,女10例,平均年龄(81.26±4.87)岁,A2.2型17例,A2.3型10例;PFNA组患者20例,男11例,女9例,平均年龄(79.56±4.75)岁,A2.2型13例,A2.3型7例。对比分析两组患者术前术后血红蛋白、红细胞比积、白蛋白、手术时间和术后下地负重时间等指标,并通过Harris评分、VAS评分评估患者术后恢复情况。结果所有患者均进行了6个月的随访,术后均未发生严重并发症;两组患者术前术后血红蛋白、红细胞比积差值组间比较,差异具有统计学意义(P0.05);两组患者术后下地负重时间、手术时间、Harris评分比较,差异具有统计学意义(P0.05)。术前术后白蛋白差值和术后VAS评分方面,两组患者比较差异无统计学意义(P0.05)。结论人工股骨头置换术具有下地负重时间早、髋关节功能恢复快等优势,可作为治疗高龄不稳定型粗隆间骨折的可选方法;但手术出血量较多、手术时间长,因此需要根据患者实际情况及手术医师熟练程度进行选择。     

经皮椎体后凸成形术治疗骨质疏松性椎体压缩骨折

目的初步探讨应用球囊扩张椎体后凸成形术治疗骨质疏松性椎体压缩骨折的临床疗效。方法应用球囊扩张椎体后凸成形术治疗骨质疏松性椎体压缩骨折患者24例28个椎体，并随访4～11个月，平均8个月。结果所有患者手术均获成功，无脊髓神经损伤，病椎疼痛缓解，后凸畸形平均矫正20°，随访期间，疗效满意，无病椎高度丢失。结论应用经皮椎体成形术治疗骨质疏松性椎体压缩骨折能明显改善患者疼痛症状，恢复椎体高度，矫正后凸畸形，是一种安全的微创方法。     

局麻下单侧经皮椎体后凸成形术治疗骨质疏松性胸腰椎凹陷性骨折

[摘要]目的探讨局麻下单侧经皮椎体后凸成形术治疗骨质疏松性胸腰椎凹陷性骨折的效果。方法2009年9月-2010年12月对45例骨质疏松性胸腰椎凹陷性骨折患者在局部麻醉下采用PKP治疗,观察术前、术后VAS评分;术前、术后以及术后一年椎体中央高度比和局部后凸Cobb角。结果45例患者均顺利完成手术。全部病例中1例骨水泥向上位椎间盘渗漏、1例骨水泥向椎体侧方渗漏,均未出现临床症状。患者术前、术后VAS评分分别为（8．32±1．07）分、（1．84±0．71）分,比较有显著性差异（P〈0．01）。术后椎体中央高度比与术前比较明显增加（P〈0．05）,后凸Cobb角与术前比较无明显差异（P〉0．05）。术后一年椎体中央高度比与术前比较仍有显著性差异（P〈0．05）,后凸Cobb角与术后比较无明显差异（P〉0．05）。随访一年后,全部病例未出现伤椎再骨折和邻近椎体骨折。结论局麻下PKP治疗骨质疏松性胸腰椎凹陷性椎体骨折能迅速缓解疼痛,部分恢复椎体高度并维持治疗效果。     

Comparison of the Effects of Alendronate and Alfacalcidol on Hip Bone Mineral Density and Bone Turnover in Japanese Men Having Osteoporosis or Osteopenia with Clinical Risk Factors for Fractures

Purpose

The comparative effects of alendronate and alfacalcidol on bone mineral density (BMD) and bone turnover have already been established in postmenopausal women with osteoporosis. An open-labeled prospective study was conducted to compare the treatment effects of alendronate and alfacalcidol on hip BMD and bone turnover in Japanese men with osteoporosis or osteopenia with clinical risk factors for fractures.

Materials and Methods

One hundred twelve men with osteoporosis or osteopenia with clinical risk factors for fractures (mean age: 71.4 years) were randomly divided into two groups of 56 patients each: the alendronate (5 mg daily) and alfacalcidol (1 µg daily) groups. The BMD of the total hip, urinary level of cross-linked N-terminal telopeptides of type I collagen (NTX), and serum levels of bone-specific alkaline phosphatase (BSAP) were measured during the 12-month-treatment period.

Results

Forty-five patients in the alendronate group and 42 patients in the alfacalcidol group completed the trial. Alendronate increased BMD (+2.3% at 12 months) following reductions in the urinary level of NTX (-46.4% at 3 months) and serum level of BSAP (-34.1% at 12 months), while alfacalcidol sustained BMD (-1.9% at 12 months) as well as the urinary level of NTX (+13.2% at 3 months) and serum level of BSAP (+1.8% at 12 months).

Conclusion

The present study confirmed that alendronate has better efficacy than alfacalcidol (active control) in increasing hip BMD and reducing bone turnover in Japanese men with osteoporosis or osteopenia with clinical risk factors for fractures.     

股骨近端不同平面皮质骨厚度值、X射线灰度值与女性髋部脆性骨折的相关性

文题释义：脆性骨折：是指在无创伤或较微创伤情况下引起的骨折,一般是指在平地或人体站立高度下活动过程中发生的骨折,X射线下常可见骨骼有骨质疏松征象,也称为骨质疏松性骨折。髋部骨折：是指发生在髋部及周围的骨折,包括股骨颈骨折、股骨转子间骨折、转子间骨折及髋臼骨折等,是骨质疏松性骨折最常发生的骨折部位,患者常因高龄且伴有基础疾病而1年内死亡率可达50%,5年存活率为20%。背景：随着人口老龄化,脆性骨折疾病受到临床越来越多的关注,骨密度值的单独使用已经不能满足临床对脆性骨折的风险评估。目前骨皮质厚度作为评估脆性骨折发生风险的新方向和新方法之一,受到越来越多学者的研究和讨论。目的：探讨在X射线DR摄影下,股骨近端不同平面骨皮质厚度值、X射线灰度值与50岁以上女性髋部脆性骨折的相关性,以此探寻股骨近端不同平面中,用于预测女性髋部脆性骨折发生风险最合适的测量平面。方法：依照纳入标准收集2018年7月至2019年6月在广西医科大学第九附属医院放射科行X射线DR骨盆正位片检查的50岁以上女性患者100例的相关临床资料。所有患者对试验方案均知情同意,且得到医院伦理委员会批准。股骨近端骨皮质厚度值的测量平面设计为股骨颈中段、小转子上1 cm以内和小转子下1 cm以内,共3个测量平面。X射线灰度值测量以大转子和小转子的中点连线作为矩形对角线取矩形区域测量。结果与结论：①50-64岁年龄组记为A组,65岁及以上年龄组记为B组,每组各50例;② B组患者的小转子上1 cm以内和小转子下1 cm以内平面的骨皮质厚度值、X射线灰度值比A组低,骨折率比A组高,差异均有显著性意义(P < 0.05);而股骨颈中段平面的骨皮质厚度值2组间比较差异无显著性意义(P > 0.05);③骨皮质厚度值的测量平面比较,骨皮质厚度测量值在整体上由高到低依次为小转子下1 cm以内、小转子上1 cm以内和股骨颈中段平面,差异有显著性意义(P < 0.05);④观察对象小转子下1 cm以内及小转子上1 cm以内骨皮质厚度值、X射线灰度值、年龄,与脆性骨折相关系数依次为-0.303,-0.205,-0.272及0.346(P < 0.05),但股骨颈中段平面皮质骨厚度与脆性骨折无明显相关性(P > 0.05);⑤A组中骨折和非骨折患者小转子上1 cm以内和小转子下1 cm以内测量平面的骨皮质厚度值比较差异有显著性意义(P < 0.05);B组中骨折和非骨折患者各指标比较差异均无显著性意义(P > 0.05);在50岁以上的所有患者中,骨折和非骨折患者各测量平面的骨皮质厚度值和X射线灰度值的比较差异均有显著性意义(P < 0.05);⑥说明骨皮质厚度值变薄,X射线灰度值变小,则髋部脆性骨折可能性变高。利用股骨近端骨皮质厚度评估50岁以上女性髋部脆性骨折风险时,推荐在股骨小转子下1 cm以内平面进行测量。ORCID: 0000-0003-1961-7468(覃海阔)中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程