Abstract：
BACKGROUND:Recently, there has been increasing interest in mobile-bearing total knee arthroplasty (TKA). However, changes in biomechanics with respect to femoral component alignment in mobile-bearing TKA have not been explored in depth. This study aims to evaluate the biomechanical effect of sagittal alignment of the femoral component in mobile-bearing TKA. METHODS:We developed femoral sagittal alignment models with - 3°, 0°, 3°, 5°, and 7°. We also examined the kinematics of the tibiofemoral (TF) joint, contact point on the TF joint, contact stress on the patellofemoral (PF) joint, collateral ligament force, and quadriceps force using a validated computational model under a deep-knee-bend condition. RESULTS:Posterior kinematics of the TF joint increased as the femoral component flexed. In addition, contact stress on the PF joint, collateral ligament force, and quadriceps force decreased as the femoral component flexed. The results of this study can assist surgeons in assessing risk factors associated with femoral component sagittal alignment for mobile-bearing TKA. CONCLUSIONS:Our results showed that slight flexion implantation may be an effective alternative technique because of its advantageous biomechanical effect. However, excessive flexion should be avoided because of potential loosening of the TF joint.
journal_name
J Orthop Surg Resjournal_title
Journal of orthopaedic surgery and researchauthors
Koh YG,Lee JA,Lee HY,Suh DS,Kim HJ,Kang KTdoi
10.1186/s13018-019-1458-5subject
Has Abstractpub_date
2019-11-28 00:00:00pages
400issue
1issn
1749-799Xpii
10.1186/s13018-019-1458-5journal_volume
14pub_type
杂志文章abstract：BACKGROUND:Femoral and sciatic nerves could be damaged during various stages of the periacetabular osteotomy. Changing the position of the hip could be the most effective way of preventing nerve injuries. The purpose of the present study was to investigate the distances of the nerves to various bony landmarks with diff...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-020-01937-7
更新日期：2020-09-11 00:00:00
abstract：BACKGROUND:It is known that mortality after hip fracture increases compared to the general population; the trend in mortality is a controversial issue. The objective of this study is to examine incidence, trends, and factors associated with mortality in patients with osteoporotic hip fractures. METHODS:This is a retro...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-019-1226-6
更新日期：2019-07-04 00:00:00
abstract：BACKGROUND:The purpose of this study was to introduce arthroscopic partial trapeziectomy and tendon interposition for the treatment of symptomatic thumb carpometacarpal arthritis of Eaton stage II or III. METHODS:From August 2001 to April 2009, 23 patients with thumb carpometacarpal arthritis were treated using this t...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-015-0329-y
更新日期：2015-12-18 00:00:00
abstract：INTRODUCTION:Knee extension deficit or loss of extension (LOE) is a potential complication following ACL reconstruction (ACLR); however, the change in postoperative knee extension during rehabilitation is not well defined. The aim of this review is to establish the trajectory of knee extension recovery and incidence of...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-019-1127-8
更新日期：2019-03-28 00:00:00
abstract：BACKGROUND:The aim of the current paper is to evaluate the effects of robot-navigation-assisted core decompression compared with conventional core decompression surgery for early-stage osteonecrosis of the femoral head. METHODS:Twenty patients with a total of 36 hips who were diagnosed with Association Research Circul...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-019-1437-x
更新日期：2019-11-21 00:00:00
abstract：BACKGROUND:To analyze the safety and effects of early initiation of rehabilitation including objective measurement outcomes after lumbar spine fusion based on principles of strength training. METHODS:The study recruited 27 patients, aged 45 to 70 years, who had undergone lumbar spine fusion. The method of concealed ra...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章,随机对照试验
doi：10.1186/s13018-018-0853-7
更新日期：2018-06-19 00:00:00
abstract：BACKGROUND:Training beginners of the pedicle screw instrumentation technique in the operating room is limited because of issues related to patient safety and surgical efficiency. Three-dimensional (3D) printing enables training or simulation surgery on a real-size replica of deformed spine, which is difficult to perfor...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-018-0788-z
更新日期：2018-04-16 00:00:00
abstract：BACKGROUND:This study aimed to explore the relationship among different cervical sagittal parameters in asymptomatic volunteers and the correlation between surgical efficacy and difference of presumed and actual postoperative C2-7 Cobbs's angle (C2-7COBB), which was calculated based on preoperative T1 slope (T1S) in pa...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-020-02016-7
更新日期：2020-11-05 00:00:00
abstract：BACKGROUND:The current study aimed to discuss the prevalence and surgical outcomes of the asymmetrical Modic changes and identify its correlative factors by multivariate logistic regression analysis. METHODS:Two hundred seventy-eight patients with single-level Modic changes and nerve compression symptoms were reviewed...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-018-0807-0
更新日期：2018-04-16 00:00:00
abstract：INTRODUCTION:The aim of this study was to determine the differences and consistencies in the morphological and angular interpretations of standard USG images. Therefore, it was aimed to show the correlations of orthopaedic doctors with different periods of experience in hip ultrasound measurements taken with the Graf m...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-019-1263-1
更新日期：2019-07-17 00:00:00
abstract：BACKGROUND:Trunk asymmetry and vertebral rotation, at times observed in the normal spine, resemble the characteristics of adolescent idiopathic scoliosis (AIS). Right thoracic curvature has also been reported in the normal spine. If it is determined that the features of right thoracic side curvature in the normal spine...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/1749-799X-6-4
更新日期：2011-01-14 00:00:00
abstract：BACKGROUND:The incidence of intertrochanteric hip fracture is expected to increase as the global population ages. It is one of the most important causes of mortality and morbidities in the geriatric population. The incidence of reverse oblique and transverse intertrochanteric (AO/OTA 31-A3) fractures is relatively low;...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-019-1414-4
更新日期：2019-11-08 00:00:00
abstract：BACKGROUND:Achilles sleeve avulsion usually occurs from pre-existing insertional Achilles tendinopathy, leaving a calcific spur at the insertional site. The purpose of this study was to introduce a new technique using the spur base on the insertional site to drill the suture tunnel to repair Achilles sleeve avulsion. ...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-020-01699-2
更新日期：2020-06-17 00:00:00
abstract：BACKGROUND:Calcaneal insufficiency avulsion (CIA) fractures often present with neuropathic etiology, such as Charcot neuroarthropathy (CN). Under the same surgical procedures, the outcomes of CIA fractures are less desirable, compared to the outcomes of the traumatic calcaneal avulsion fractures. Here, the study sugges...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-017-0695-8
更新日期：2017-12-13 00:00:00
abstract：BACKGROUND:Alendronate (ALN) is the most common form of bisphosphonates used for the treatment of osteoporosis. Osteoprotegerin (OPG) has also been shown to reduce osteoporotic changes in both humans and experimental animals after systemic administration. The aim of this current study was to test if the anti-resorption...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/1749-799X-6-34
更新日期：2011-07-13 00:00:00
abstract：BACKGROUND:The purpose of this study is to identify key genes and microRNAs (miRNAs) involved in autoantibody-mediated arthritis (AMA). METHODS:A time-course microarray data (ID: GSE27492) of peripheral blood leukocytes, ankle tissue, and synovial fluid from K/BxN mouse serum-transferred mice were downloaded from Gene...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-017-0674-0
更新日期：2017-12-02 00:00:00
abstract：PURPOSE:The purpose of this study was to compare the interfragmentary compression force across a simulated scaphoid fracture by two commonly used compression screw systems; the Acutrak 2 Standard and the 3.0 mm Synthes headless compression screw. METHODS:Sixteen (8 pairs; 6 female, 2 male) cadaver scaphoids were rando...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/1749-799X-6-27
更新日期：2011-06-07 00:00:00
abstract：BACKGROUND:A high percentage of closed femur fractures have slight comminution. Using micro-CT (μCT), multiple fragment segmentation is much more difficult than segmentation of unfractured or osteotomied bone. Manual or semi-automated segmentation has been performed to date. However, such segmentation is extremely labo...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-017-0609-9
更新日期：2017-07-11 00:00:00
abstract：BACKGROUND:Degloving injuries are surgical conditions in which an extensive portion of skin and subcutaneous tissue is detached from the underlying fasciae, muscles, or bone surface. Frequently, there is an association of fracture underlying the degloved area. We aimed to compare the short-term outcomes of degloving in...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-017-0706-9
更新日期：2018-01-05 00:00:00
abstract：INTRODUCTION:The clinical outcome of hemiarthroplasty for proximal humeral fractures is not satisfactory. Secondary fragment dislocation may prevent bone integration; the primary stability by a fixation technique is therefore needed to accomplish tuberosity healing. Present technical comparison of surgical fixation tec...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章,评审
doi：10.1186/1749-799X-6-36
更新日期：2011-07-18 00:00:00
abstract：OBJECTIVE:The objective of this study was to evaluate the incidence of radiographic osteoarthritis in the operated knee in comparison with the contralateral knee ten years after a bone-tendon bone patellar autograft ACL-reconstruction and to evaluate to which level patients regain activity ten years after reconstructio...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/1749-799X-3-24
更新日期：2008-06-10 00:00:00
abstract：BACKGROUND:There are controversies about platelet-rich plasma (PRP) as an established treatment option for rotator cuff (RC) tendinopathy. The purpose of the study was to find the relation of cellular component with clinical efficacy in RC tendinopathy and to find the composition of PRP in treating RC tendinopathy. ME...
journal_title：Journal of orthopaedic surgery and research
pub_type： 临床试验,杂志文章
doi：10.1186/s13018-019-1406-4
更新日期：2019-12-02 00:00:00
abstract：BACKGROUND:Posterior transfacet approach has been proved to be a safe and effective access to treat thoracic disc herniation. However, the therapeutic effect and safety of modified transfacet approach for treating thoracic spinal tuberculosis (TST) has not been reported in the clinical literature. In this study, the cl...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-018-0994-8
更新日期：2018-11-20 00:00:00
abstract：BACKGROUND:The purpose of the study is to investigate whether autologous platelet-rich plasma (PRP) can serve as bone-inducing factors to provide osteoinduction and improve bone regeneration for tissue-engineered bones fabricated with bone marrow mesenchymal stem cells (MSCs) and beta-tricalcium phosphate (β-TCP) ceram...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-017-0665-1
更新日期：2017-11-21 00:00:00
abstract：:The use of computer navigation is becoming a well-recognized technical alternative to conventional total knee arthroplasty (TKA). However, computer navigation has a substantial learning curve and the use of commercially available navigation systems increases surgical time. In addition, the potential risks associated w...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/1749-799X-6-26
更新日期：2011-05-26 00:00:00
abstract：:Ankle sprains are very common injuries seen in the athletic and young population. Majority of patients will improve with a course of rest and physical therapy. However, with conservative management about twenty percent of all patients will go on to develop chronic lateral ankle instability. This manuscript describes o...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/1749-799X-4-41
更新日期：2009-12-02 00:00:00
abstract：BACKGROUND:The aim of this study was to analyze and compare the surgical data, clinical outcomes, and complications between three-column osteotomy (3-COS) and standard surgical management (SSM) for the treatment of adult spine deformity (ASD). METHODS:A total of 112 patients who underwent consecutive 3-COS (n = 48) an...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/s13018-015-0154-3
更新日期：2015-02-03 00:00:00
abstract：BACKGROUND:We performed a systematic review and meta-analysis of randomized controlled trials (RCTs) to evaluate the efficacy and safety of local infiltration anesthesia (LIA) versus epidural analgesia (EPA) for postoperative pain control in total knee arthroplasty (TKA). METHODS:In December 2017, a systematic compute...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章,meta分析,评审
doi：10.1186/s13018-018-0770-9
更新日期：2018-05-16 00:00:00
abstract：BACKGROUND:Sickle cell anemia (SCA) is a common genetic disease in Nigeria. Past studies from West Africa focused on isolated aspects of its medical and surgical presentations. To the best of our knowledge, the musculo-skeletal presentations amongst Nigerians with SCA have not been documented in a single all encompassi...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章
doi：10.1186/1749-799X-5-2
更新日期：2010-01-18 00:00:00
abstract：:Following publication of the original article [1], we have been notified that there was a spelling mistake in the author affiliations. In this Correction, correct and incorrect versions are shown. ...
journal_title：Journal of orthopaedic surgery and research
pub_type： 杂志文章,已发布勘误
doi：10.1186/s13018-020-01680-z
更新日期：2020-04-30 00:00:00
