Objective To investigate the methods to maintain leg equalization for patients undergoing primary total hip joint replacement. Methods 40 patients,45 hips with various diseases were treated by total hip joint replacem...Objective To investigate the methods to maintain leg equalization for patients undergoing primary total hip joint replacement. Methods 40 patients,45 hips with various diseases were treated by total hip joint replacement from Jan 2000 to Sep 2001.Before operation, the perpendicular length from center of femoral head to the summit of great tuberosity and the tip of less tuberosity to the line of bilateral ischial tuberosity were measured; the length from anterior superior iliac spine to medial malleolus were measured at same time.Leg length was decided and corrected according to these lines. Results Before operation, shortening of limbs were presented in 39 hips, 1 to 4 cm, average 2.4 cm.After operation, discrepancy of both legs was 0～0.8 cm.Apparent limps were not observed in all patients. Conclusion This measurement is a useful method to maintain and recover leg length in total hip joint replacement.展开更多
Introduction: The instability of the joint is classified roughly into mechanical and functional. It is reported that the postoperative dislocation often occurs by the posterior approach of the THA and may be caused by...Introduction: The instability of the joint is classified roughly into mechanical and functional. It is reported that the postoperative dislocation often occurs by the posterior approach of the THA and may be caused by functionality instability due to the injury of the periarticular soft tissue. We analyzed the joint position sense of the hip according to an approach of the THA and examined effect to give postoperative dislocation. Materials & Methods: 92 patients (184 hip joints) who received THA in our hospital were selected in the study. Cases in which position sensation measurements were insufficient were excluded. As for the classification, the posterior approach (PL groups) was 39 hips, anterolateral approach (AL groups) was 30 hips, and control group was 37 hips. Results: There was no significant difference between the AL group and PL group in the absolute reproduction angle error score (ARAES). The relative reproduction angle error scores (RRAES) for passive internal and external rotations and active internal rotation were significantly lower in the AL and control groups than the PL group. Discussion: This study was suggested that the hip joint position sense in the AL group was better retained for the preservation of the soft tissue.展开更多
Former research work about the modeling of hip joint focus on the uppersegment of femoral, and assumes the acetabulum cup is sphere concave, and the acetabulum prosthesesis semisphere. A method of acquiring the point ...Former research work about the modeling of hip joint focus on the uppersegment of femoral, and assumes the acetabulum cup is sphere concave, and the acetabulum prosthesesis semisphere. A method of acquiring the point data on the surface of the hipbone using the reverseengineering technology is presented. After analyzing the acetabulum surface fitting error, arotation ellipsoid CAD model is applied to fit the acetabulum surface, and then optimizationtechnique is used to find the geometric parameters of the model. The fitting error between thesphere and rotation ellipsoid is compared and gets the result that the fitting error of rotationellipsoid is smaller than sphere, and the rotation ellipsoid can describe the shape of theacetabulum better.展开更多
The purpose of this review is to examine the validity of positive claims regarding the direct anterior approach(DAA) with a fracture table for total hip arthroplasty. Recent literature regarding the DAA was searched a...The purpose of this review is to examine the validity of positive claims regarding the direct anterior approach(DAA) with a fracture table for total hip arthroplasty. Recent literature regarding the DAA was searched and specific claims investigated including improved early outcomes, speed of recovery, component placement, dislocation rates, and complication rates. Recent literature is positive regarding the effects of total hip arthroplasty with the anterior approach. While the data is not definitive at present, patients receiving the anterior approach for total hip arthroplasty tend to recover more quickly and have improved early outcomes. Component placement with the anterior approach is more often in the "safe zone" than with other approaches. Dislocation rates tend to be less than 1% with the anterior approach. Complication rates vary widely in the published literature. A possible explanation is that the varianceis due to surgeon and institutional experience with the anterior approach procedure. Concerns remain regarding the "learning curve" for both surgeons and institutions. In conclusion, it is not a matter of should this approach be used, but how should it be implemented.展开更多
Total hip replacement(THR) is a successful and reliable operation for both relieving pain and improving function in patients who are disabled with end stage arthritis.The ageing population is predicted to significantl...Total hip replacement(THR) is a successful and reliable operation for both relieving pain and improving function in patients who are disabled with end stage arthritis.The ageing population is predicted to significantly increase the requirement for THR in patients who have a higher functional demand than those of the past. Uncemented THR was introduced to improve the long term results and in particular the results in younger, higher functioning patients. There has been controversy about the value of uncemented compared to cemented THR although there has been a world-wide trend towards uncemented fixation. Uncemented acetabular fixation has gained wide acceptance, as seen in the increasing number of hybrid THR in joint registries, but there remains debate about the best mode of femoral fixation.In this article we review the history and current worldwide registry data, with an in-depth analysis of the New Zealand Joint Registry, to determine the results of uncemented femoral fixation in an attempt to provide an evidence-based answer as to the value of this form of fixation.展开更多
Many orthopedic surgeons require that their patients obtain dental clearance before elective total joint arthroplasty(TJA).However,there is no consensus substantiating the practice.To this end,a systematic review on t...Many orthopedic surgeons require that their patients obtain dental clearance before elective total joint arthroplasty(TJA).However,there is no consensus substantiating the practice.To this end,a systematic review on the prevalence of dental pathology in TJA patients,risk factors for failing dental screening,and impact of dental evaluations was performed.Literature was sourced from PubMed and Scopus databases.Six papers were sourced from the initial search,one study was extracted from the references of the original six manuscripts,and one new publication was retrieved from a second search conducted after the first.The prevalence of dental pathology ranged from 8.8%to 29.4%across studies.Two of four papers reported lower than average or improvements in postoperative infection with pre-operative dental evaluations while two found no such association.There is insufficient evidence to support universal dental clearance before TJA.展开更多
目的探讨人工关节带量采购(简称集采)对下肢全关节置换(TJA)的影响。方法选取2021年5月至2023年3月宁波大学附属李惠利医院收治的行下肢TJA的185例患者为研究对象。根据集采政策实施前后分为集采前(2021年5月至2022年5月)90例、集采后(2...目的探讨人工关节带量采购(简称集采)对下肢全关节置换(TJA)的影响。方法选取2021年5月至2023年3月宁波大学附属李惠利医院收治的行下肢TJA的185例患者为研究对象。根据集采政策实施前后分为集采前(2021年5月至2022年5月)90例、集采后(2022年6月至2023年3月)95例;再根据手术方式分为全髋关节置换(THA)组95例、全膝关节表面置换(TKA)组90例。比较集采前后THA组和TKA组患者术后并发症发生情况、住院总费用、手术一次性材料费用、手术时间、术中出血量、住院时间、术前和术后5 d视觉模拟评分法(VAS)、住院满意度。结果所有患者随访期间均未见关节僵硬、脱位,假体周围感染,假体周围骨折等并发症。集采后THA组和TKA组患者住院总费用及手术一次性材料费用均低于集采前,住院满意度均高于集采前,差异均有统计学意义(均P<0.05)。与术前比较,集采前后THA组和TKA组患者术后5 d VAS评分均降低,差异均有统计学意义(均P<0.05)。集采前后THA组和TKA组患者住院时间、手术时间、术中出血量比较,差异均无统计学意义(均P>0.05)。结论集采政策实施后,下肢TJA患者的住院费用降低,住院满意度提高,术中及术后状况无明显影响。展开更多
目的评估微创前外侧肌间隙入路联合股骨颈保留在全髋关节置换术中的应用效果。方法回顾性分析2019年1月至2022年1月在渭南市第二医院接受全髋关节置换术的83例患者临床资料,其中42例采用微创前外侧肌间隙入路全髋关节置换术,并保留股骨...目的评估微创前外侧肌间隙入路联合股骨颈保留在全髋关节置换术中的应用效果。方法回顾性分析2019年1月至2022年1月在渭南市第二医院接受全髋关节置换术的83例患者临床资料,其中42例采用微创前外侧肌间隙入路全髋关节置换术,并保留股骨颈,设为观察组;41例采用传统后外侧入路全髋关节置换术,设为对照组。观察组中男20例,女22例,年龄(63.75±6.76)岁;对照组中男23例,女18例,年龄(63.49±6.57)岁。比较两组患者的围手术期指标,术前和术后1 d的血清肌酸磷酸激酶(CPK)水平,术前和术后12个月的视觉模拟评分法(VAS)评分、髋关节Harris评分、Berg平衡量表(BBS)评分、步态参数、两侧肢体长度差、髋臼旋转中心的纵向及横向位移。采用t检验、χ^(2)检验。结果观察组患者的手术时间、术中出血量、切口长度、术后1 d引流量、术后1 d CPK水平分别为(60.26±7.41)min、(210.45±33.94)ml、(7.71±1.96)cm、(82.35±8.48)ml、(384.75±29.76)U/L,对照组分别为(68.97±8.35)min、(328.15±42.06)ml、(11.27±2.43)cm、(117.89±12.12)ml、(668.40±45.94)U/L,差异均有统计学意义(t=5.029、14.047、7.355、15.510、33.299,均P<0.001)。术后12个月,观察组的VAS评分、髋关节Harris评分、BBS评分、步频、最大步速、单足支撑时间百分比、足底压力差分别为(0.67±0.21)分、(90.45±9.37)分、(52.71±3.14)分、(96.79±8.12)步/min、(89.94±10.63)cm/s、(46.59±5.31)%、(9.02±1.03)%,对照组分别为(0.89±0.27)分、(82.63±8.04)分、(45.42±4.83)分、(81.14±7.59)步/min、(80.21±9.87)cm/s、(40.87±5.16)%、(10.61±2.12)%,差异均有统计学意义(t=4.137、4.084、8.131、9.074、4.323、4.977、4.329,均P<0.001)。影像学检查结果显示,观察组患者术后12个月的双侧肢体长差、纵向与横向的髋臼旋转中心位移均低于对照组(t=5.473、7.707、10.698,均P<0.001)。结论微创前外侧肌间隙入路联合股骨颈保留有助于全髋关节置换术后恢复,改善患者髋关节功能。展开更多
文摘Objective To investigate the methods to maintain leg equalization for patients undergoing primary total hip joint replacement. Methods 40 patients,45 hips with various diseases were treated by total hip joint replacement from Jan 2000 to Sep 2001.Before operation, the perpendicular length from center of femoral head to the summit of great tuberosity and the tip of less tuberosity to the line of bilateral ischial tuberosity were measured; the length from anterior superior iliac spine to medial malleolus were measured at same time.Leg length was decided and corrected according to these lines. Results Before operation, shortening of limbs were presented in 39 hips, 1 to 4 cm, average 2.4 cm.After operation, discrepancy of both legs was 0～0.8 cm.Apparent limps were not observed in all patients. Conclusion This measurement is a useful method to maintain and recover leg length in total hip joint replacement.
文摘Introduction: The instability of the joint is classified roughly into mechanical and functional. It is reported that the postoperative dislocation often occurs by the posterior approach of the THA and may be caused by functionality instability due to the injury of the periarticular soft tissue. We analyzed the joint position sense of the hip according to an approach of the THA and examined effect to give postoperative dislocation. Materials & Methods: 92 patients (184 hip joints) who received THA in our hospital were selected in the study. Cases in which position sensation measurements were insufficient were excluded. As for the classification, the posterior approach (PL groups) was 39 hips, anterolateral approach (AL groups) was 30 hips, and control group was 37 hips. Results: There was no significant difference between the AL group and PL group in the absolute reproduction angle error score (ARAES). The relative reproduction angle error scores (RRAES) for passive internal and external rotations and active internal rotation were significantly lower in the AL and control groups than the PL group. Discussion: This study was suggested that the hip joint position sense in the AL group was better retained for the preservation of the soft tissue.
基金This project is supported by China Post Doctor Science FoundationShanghai Jiaotong University-Shanghai Second Medical University Cooperation Foundation.
文摘Former research work about the modeling of hip joint focus on the uppersegment of femoral, and assumes the acetabulum cup is sphere concave, and the acetabulum prosthesesis semisphere. A method of acquiring the point data on the surface of the hipbone using the reverseengineering technology is presented. After analyzing the acetabulum surface fitting error, arotation ellipsoid CAD model is applied to fit the acetabulum surface, and then optimizationtechnique is used to find the geometric parameters of the model. The fitting error between thesphere and rotation ellipsoid is compared and gets the result that the fitting error of rotationellipsoid is smaller than sphere, and the rotation ellipsoid can describe the shape of theacetabulum better.
文摘The purpose of this review is to examine the validity of positive claims regarding the direct anterior approach(DAA) with a fracture table for total hip arthroplasty. Recent literature regarding the DAA was searched and specific claims investigated including improved early outcomes, speed of recovery, component placement, dislocation rates, and complication rates. Recent literature is positive regarding the effects of total hip arthroplasty with the anterior approach. While the data is not definitive at present, patients receiving the anterior approach for total hip arthroplasty tend to recover more quickly and have improved early outcomes. Component placement with the anterior approach is more often in the "safe zone" than with other approaches. Dislocation rates tend to be less than 1% with the anterior approach. Complication rates vary widely in the published literature. A possible explanation is that the varianceis due to surgeon and institutional experience with the anterior approach procedure. Concerns remain regarding the "learning curve" for both surgeons and institutions. In conclusion, it is not a matter of should this approach be used, but how should it be implemented.
文摘Total hip replacement(THR) is a successful and reliable operation for both relieving pain and improving function in patients who are disabled with end stage arthritis.The ageing population is predicted to significantly increase the requirement for THR in patients who have a higher functional demand than those of the past. Uncemented THR was introduced to improve the long term results and in particular the results in younger, higher functioning patients. There has been controversy about the value of uncemented compared to cemented THR although there has been a world-wide trend towards uncemented fixation. Uncemented acetabular fixation has gained wide acceptance, as seen in the increasing number of hybrid THR in joint registries, but there remains debate about the best mode of femoral fixation.In this article we review the history and current worldwide registry data, with an in-depth analysis of the New Zealand Joint Registry, to determine the results of uncemented femoral fixation in an attempt to provide an evidence-based answer as to the value of this form of fixation.
文摘Many orthopedic surgeons require that their patients obtain dental clearance before elective total joint arthroplasty(TJA).However,there is no consensus substantiating the practice.To this end,a systematic review on the prevalence of dental pathology in TJA patients,risk factors for failing dental screening,and impact of dental evaluations was performed.Literature was sourced from PubMed and Scopus databases.Six papers were sourced from the initial search,one study was extracted from the references of the original six manuscripts,and one new publication was retrieved from a second search conducted after the first.The prevalence of dental pathology ranged from 8.8%to 29.4%across studies.Two of four papers reported lower than average or improvements in postoperative infection with pre-operative dental evaluations while two found no such association.There is insufficient evidence to support universal dental clearance before TJA.
文摘目的探讨人工关节带量采购(简称集采)对下肢全关节置换(TJA)的影响。方法选取2021年5月至2023年3月宁波大学附属李惠利医院收治的行下肢TJA的185例患者为研究对象。根据集采政策实施前后分为集采前(2021年5月至2022年5月)90例、集采后(2022年6月至2023年3月)95例;再根据手术方式分为全髋关节置换(THA)组95例、全膝关节表面置换(TKA)组90例。比较集采前后THA组和TKA组患者术后并发症发生情况、住院总费用、手术一次性材料费用、手术时间、术中出血量、住院时间、术前和术后5 d视觉模拟评分法(VAS)、住院满意度。结果所有患者随访期间均未见关节僵硬、脱位,假体周围感染,假体周围骨折等并发症。集采后THA组和TKA组患者住院总费用及手术一次性材料费用均低于集采前,住院满意度均高于集采前,差异均有统计学意义(均P<0.05)。与术前比较,集采前后THA组和TKA组患者术后5 d VAS评分均降低,差异均有统计学意义(均P<0.05)。集采前后THA组和TKA组患者住院时间、手术时间、术中出血量比较,差异均无统计学意义(均P>0.05)。结论集采政策实施后,下肢TJA患者的住院费用降低,住院满意度提高,术中及术后状况无明显影响。
文摘目的评估微创前外侧肌间隙入路联合股骨颈保留在全髋关节置换术中的应用效果。方法回顾性分析2019年1月至2022年1月在渭南市第二医院接受全髋关节置换术的83例患者临床资料,其中42例采用微创前外侧肌间隙入路全髋关节置换术,并保留股骨颈,设为观察组;41例采用传统后外侧入路全髋关节置换术,设为对照组。观察组中男20例,女22例,年龄(63.75±6.76)岁;对照组中男23例,女18例,年龄(63.49±6.57)岁。比较两组患者的围手术期指标,术前和术后1 d的血清肌酸磷酸激酶(CPK)水平,术前和术后12个月的视觉模拟评分法(VAS)评分、髋关节Harris评分、Berg平衡量表(BBS)评分、步态参数、两侧肢体长度差、髋臼旋转中心的纵向及横向位移。采用t检验、χ^(2)检验。结果观察组患者的手术时间、术中出血量、切口长度、术后1 d引流量、术后1 d CPK水平分别为(60.26±7.41)min、(210.45±33.94)ml、(7.71±1.96)cm、(82.35±8.48)ml、(384.75±29.76)U/L,对照组分别为(68.97±8.35)min、(328.15±42.06)ml、(11.27±2.43)cm、(117.89±12.12)ml、(668.40±45.94)U/L,差异均有统计学意义(t=5.029、14.047、7.355、15.510、33.299,均P<0.001)。术后12个月,观察组的VAS评分、髋关节Harris评分、BBS评分、步频、最大步速、单足支撑时间百分比、足底压力差分别为(0.67±0.21)分、(90.45±9.37)分、(52.71±3.14)分、(96.79±8.12)步/min、(89.94±10.63)cm/s、(46.59±5.31)%、(9.02±1.03)%,对照组分别为(0.89±0.27)分、(82.63±8.04)分、(45.42±4.83)分、(81.14±7.59)步/min、(80.21±9.87)cm/s、(40.87±5.16)%、(10.61±2.12)%,差异均有统计学意义(t=4.137、4.084、8.131、9.074、4.323、4.977、4.329,均P<0.001)。影像学检查结果显示,观察组患者术后12个月的双侧肢体长差、纵向与横向的髋臼旋转中心位移均低于对照组(t=5.473、7.707、10.698,均P<0.001)。结论微创前外侧肌间隙入路联合股骨颈保留有助于全髋关节置换术后恢复,改善患者髋关节功能。
