keyword
https://read.qxmd.com/read/38511851/significant-difference-in-femoral-torsion-between-coronal-plane-alignment-of-the-knee-type-1-and-4
#1
JOURNAL ARTICLE
Jonas Ziegenhorn, Julia Kirschberg, Markus Heinecke, Rüdiger von Eisenhart-Rothe, Georg Matziolis
PURPOSE: The purpose of this study was to find out whether the torsions of the femur and tibia are dependent on the coronal plane alignment of the knee (CPAK) type. METHODS: Five hundred patients (1000 legs) were included, who received a whole leg standing three-dimensional (3D) radiograph using EOS imaging (EOS Imaging, Paris, France). SterEOS software was used for digital reconstruction. Femoral and tibial torsions were determined by analysing 3D reconstructions of each leg...
March 21, 2024: Knee Surgery, Sports Traumatology, Arthroscopy
https://read.qxmd.com/read/38504510/increased-tibial-tuberosity-torsion-has-the-greatest-predictive-value-in-patients-with-patellofemoral-instability-compared-to-other-commonly-assessed-parameters
#2
JOURNAL ARTICLE
Lukas Jud, Martin Hartmann, Lazaros Vlachopoulos, Stefan M Zimmermann, Jakob Ackermann, Sandro F Fucentese
PURPOSE: The multifactorial nature of patellofemoral instability requires a comprehensive assessment of the affected patients. While an association between tibial tuberosity (TT) torsion and patellofemoral instability is known, its specific effect has not yet been investigated. This study investigated the effect of TT torsion on patellofemoral instability. METHODS: This retrospective cohort study compared patients who underwent surgical intervention for patellofemoral instability and asymptomatic controls...
March 19, 2024: Knee Surgery, Sports Traumatology, Arthroscopy
https://read.qxmd.com/read/38483571/-radiological-diagnostics-of-patellofemoral-instability-and-patellar-dislocation
#3
REVIEW
Sonja Schuldes, Carsten Hackenbroch
Patellofemoral instability (PFI) describes a (sub)luxation of the patella in the patellofemoral joint. Pathophysiologically, PFI is usually due to a nonphysiological movement of the patella, so-called maltracking, either due to acute trauma with injury to the supporting ligamentous apparatus or due to the presence of anatomical risk factors. Radiologically assessable risk factors for maltracking include trochlear dysplasia, patella alta, patellar tilt, lateralization of the tibial tuberosity, torsional deformity and genu valgum...
March 14, 2024: Radiologie (Heidelb)
https://read.qxmd.com/read/38483000/longitudinal-ct-based-finite-element-analyses-provide-objective-fracture-healing-measures-in-an-ovine-tibia-model
#4
JOURNAL ARTICLE
Carla Hetreau, Dominic Mischler, Jérôme Schlatter, Alessia Valenti, Manuela Ernst, Peter Varga, Peter Schwarzenberg
Measuring the healing status of a bone fracture is important to determine the clinical care a patient receives. Implantable devices can directly and continuously assess the healing status of fracture fixation constructs, while subject-specific virtual biomechanical tests can noninvasively determine callus structural integrity at single time points. Despite their potential for objectification, both methods are not yet integrated into clinical practice with further evidence of their benefits required. This study correlated continuous data from an implantable sensor assessing healing status through implant load monitoring with computer tomography (CT) based longitudinal finite element (FE) simulations in a large animal model...
March 14, 2024: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://read.qxmd.com/read/38470128/rotational-malalignment-after-intramedullary-nailing-of-tibial-shaft-fractures-is-predictable
#5
JOURNAL ARTICLE
Megan E Cain, Laurent Hendrickx, Inger Sierevelt, Gino M M J Kerkhoffs, Bhavin Jadav, Job N Doornberg, Ruurd L Jaarsma
OBJECTIVES: Intramedullary nailing (IMN) is the treatment of choice for most tibial shaft fractures (TSF). However, an iatrogenic pitfall may be rotational malalignment. The aim of this retrospective analysis was to determine predictors of rotational malalignment following IMN of TSF. DESIGN: Retrospective study. SETTING: Single level one trauma centre. PATIENT SELECTION CRITERIA: Patients that had a unilateral IMN for TSF with a low-dose bilateral post-operative CT to assess rotational malalignment...
March 12, 2024: Journal of Orthopaedic Trauma
https://read.qxmd.com/read/38444646/comparative-experimental-study-of-the-biomechanical-properties-of-retrograde-tibial-nailing-and-distal-tibia-plate-in-distal-tibia-fracture
#6
JOURNAL ARTICLE
Xuping Lin, Cong Zhang, Yanfang Yang, Wencheng Yang, Xiaomeng Wang, Haichuan Lu, Qingjun Liu
Objective: A biomechanical comparative analysis was conducted to evaluate the retrograde tibial nailing (RTN) and distal tibia plate techniques for the treatment of distal tibia fractures. Methods: Fourteen fresh adult tibia specimens were selected, consisting of seven males and seven females aged 34-55 years. The specimens were randomly divided into two groups (Group A and Group B) using a numerical table method, with seven specimens in each group. Group A underwent internal fixation of distal tibial fractures using RTN, while Group B received internal fixation using a plate...
2024: Frontiers in Bioengineering and Biotechnology
https://read.qxmd.com/read/38440186/multi-segment-osteotomy-with-interlocking-intramedullary-nail-fixation-in-the-treatment-of-lower-limb-deformity-in-older-children-with-hypophosphatemic-rickets
#7
JOURNAL ARTICLE
Ming Lu, Haifeng You, Yukun Wang
OBJECTIVE: Malformations of the lower limbs caused by hypophosphatemic rickets in older children are mostly complex, occurring on multiple planes without a single apex and showing arcuate bending of the diaphysis combined with torsion deformity, and are difficult to correct. This study retrospectively investigated the effect of and indicators for multi-segment osteotomy with interlocking intramedullary nail fixation in the treatment of bony deformity caused by hypophosphatemic rickets...
2024: Frontiers in Pediatrics
https://read.qxmd.com/read/38430984/derotational-high-tibial-osteotomy-in-cases-of-anterior-knee-pain-and-or-patellofemoral-instability-a-systematic-review
#8
REVIEW
Bárbara Ferreira, Eluana Gomes, Inês Figueiredo, Ricardo Ribeiro, Cristina Valente, Diego Delgado, Mikel Sánchez, Renato Andrade, João Espregueira-Mendes
IMPORTANCE: Derotational High Tibial Osteotomy (HTO) is a surgical intervention for correcting rotational malalignments in the lower limb, which may contribute to anterior knee pain (AKP) and/or patellofemoral instability (PFI). This surgical technique is not yet widely implemented and requires a systematic evaluation of its outcomes. AIM: To assess the effectiveness of derotational HTO in correcting rotational malalignments of the lower limb in patients with AKP and/or PFI, through radiological, clinical, and patient-reported outcome measures...
February 29, 2024: Journal of ISAKOS
https://read.qxmd.com/read/38365167/femoral-internal-torsion-greater-than-twenty-five-degrees-and-or-external-tibial-torsion-greater-than-thirty-degrees-as-measured-by-computed-tomography-are-threshold-values-for-axial-alignment-correction-in-patellofemoral-instability
#9
REVIEW
Kristen I Barton, Kevin R Boldt, Olawale A Sogbein, Nicholas J Steiner, Gilbert Moatshe, Elizabeth Arendt, Alan Getgood
OBJECTIVES: Patellofemoral instability (PFI) has multiple predisposing anatomic factors including ligamentous hyperlaxity, coronal and axial malalignment, patella alta, trochlea dysplasia, excessive lateral patellar tilt, and excessive lateral Q vector. Yet, few studies have analyzed surgical thresholds for performing axial alignment corrective osteotomies in the treatment of PFI and patella maltracking. The objective of this systematic literature review was to determine if there is a threshold for axial plane alignment that triggers surgical correction for treatment of patellar instability in the published literature...
February 14, 2024: Journal of ISAKOS
https://read.qxmd.com/read/38347085/a-framework-based-on-subject-specific-musculoskeletal-models-and-monte-carlo-simulations-to-personalize-muscle-coordination-retraining
#10
JOURNAL ARTICLE
Hans Kainz, Willi Koller, Elias Wallnöfer, Till R Bader, Gabriel T Mindler, Andreas Kranzl
Excessive loads at lower limb joints can lead to pain and degenerative diseases. Altering joint loads with muscle coordination retraining might help to treat or prevent clinical symptoms in a non-invasive way. Knowing how much muscle coordination retraining can reduce joint loads and which muscles have the biggest impact on joint loads is crucial for personalized gait retraining. We introduced a simulation framework to quantify the potential of muscle coordination retraining to reduce joint loads for an individuum...
February 12, 2024: Scientific Reports
https://read.qxmd.com/read/38321464/increased-knee-torsional-misalignment-associated-with-femoral-torsion-is-related-to-non-contact-anterior-cruciate-ligament-injury-a-case-control-study
#11
JOURNAL ARTICLE
Dehua Wang, Hengkai Fan, Linlin Hu, Xi Liang, Wei Huang, Ke Li
BACKGROUND: Altered axial biomechanics of the knee are recognized as a risk factor for non-contact anterior cruciate ligament (ACL) injury. However, the relationship of knee and segmental torsion to non-contact ACL and combined anterolateral ligament (ALL) injury is unclear. This study aims to determine the relationship of knee and segmental torsion to non-contact ACL injury and to explore their relationship with ALL injuries. METHODS: We divided 122 patients with arthroscopically confirmed non-contact ACL injuries into an ACL injury group (isolated ACL injury, 63 patients) and an ACL + ALL injury group (ACL combined with ALL injury,59 patients)...
February 6, 2024: Journal of Orthopaedic Surgery and Research
https://read.qxmd.com/read/38270286/tibial-tuberosity-trochlear-groove-distance-is-significantly-decreased-by-medial-closing-wedge-distal-femoral-osteotomy
#12
JOURNAL ARTICLE
Julius Watrinet, Maximilian Joergens, Philipp Blum, Yannick Ehmann, Peter Augat, Fabian Stuby, Steffen Schröter, Joerg Harrer, Julian Fürmetz
PURPOSE: While medial closing wedge distal femoral osteotomy (MCWDFO) has been used to address patella instability combined with valgus malalignment, its impact on patellofemoral parameters remains uncharted. Hence, this study seeks to establish a three-dimensional (3D) planning of MCWDFO and measure its effect on the tibial tubercle - trochlear groove distance (TTTG) through simulation and calculation. METHODS: MCWDFO with a stepwise increment of one-degree varisation (1°-15°) was performed on 3D surface models of 14 lower extremities with valgus malalignment and 24 lower extremities with neutral alignment of the lower limb, resulting in a total of 608 simulations...
January 25, 2024: Knee Surgery, Sports Traumatology, Arthroscopy
https://read.qxmd.com/read/38219109/editorial-commentary-absent-extreme-bony-malalignment-medial-patellofemoral-reconstruction-is-a-sufficient-primary-surgery-for-adolescents-with-recurrent-patella-instability
#13
EDITORIAL
Seth Lawrence Sherman, Anna Bartsch
When planning an adolescent's primary surgery for recurrent patella instability, the surgeon must weigh the failure risk of performing medial patellofemoral reconstruction (MPFLR) versus the potential morbidity of adding a concomitant bony procedure, such as tibial tubercle osteotomy (TTO). In this age group, isolated MPFLR is an excellent operation with high clinical success, low failure rates, and favorable complication profile. Patients with high grade J-sign and severe trochlea dysplasia, apprehension into deep flexion, and extremes of bony malalignment, including elevated tibial tubercle-trochlear groove distance may benefit from "doing more" than MPFLR alone...
November 19, 2023: Arthroscopy
https://read.qxmd.com/read/38197108/short-term-change-of-tibial-torsion-in-children-with-spastic-cerebral-palsy-after-selective-dorsal-rhizotomy
#14
JOURNAL ARTICLE
Rui Wang, Wenbin Jiang, Min Wei, Junlu Wang, Xidan Yu, Bo Xiao, Qijia Zhan
BACKGROUND: Spastic cerebral palsy (CP) is a prevalent cause of motor dysfunction in children, with patients often experiencing secondary musculoskeletal deformities, including tibial torsion. This study aimed to investigate the short-term effect of selective dorsal rhizotomy (SDR) on tibial torsion in children with spastic CP. METHODS: We conducted a retrospective review of children with spastic CP who underwent SDR at the Department of Neurosurgery, Shanghai Children's Hospital, between July 2019 and November 2022...
December 26, 2023: Translational Pediatrics
https://read.qxmd.com/read/38113915/early-surgical-management-of-medial-patellar-luxation-in-juvenile-dogs
#15
JOURNAL ARTICLE
Alefe L C Carrera, Bruno W Minto, Eloy H P Curuci, Carla G Paula, Julia B Jassniker, Olicies Cunha
OBJECTIVE:  The aim of this study was to analyse a series of five cases of early surgical treatment in juvenile canine patients with high-grade medial patellar luxation. STUDY DESIGN:  Canine patients, with immature skeleton, affected by grade III or IV medial patellar luxation and treated by multimodal surgical techniques were selected. RESULTS:  Five dogs of different breeds, mean age 7.2 ± 3.0 months, met the inclusion criteria...
December 19, 2023: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://read.qxmd.com/read/38079507/loading-of-the-hip-and-knee-during-swimming-an-in-vivo-load-study
#16
JOURNAL ARTICLE
Sijia Zhou, Alwina Bender, Ines Kutzner, Jörn Dymke, Tazio Maleitzke, Carsten Perka, Georg N Duda, Tobias Winkler, Philipp Damm
BACKGROUND: Swimming is commonly recommended as postoperative rehabilitation following total hip arthroplasty (THA) and total knee arthroplasty (TKA). So far, in vivo hip and knee joint loads during swimming remain undescribed. METHODS: In vivo hip and knee joint loads were measured in 6 patients who underwent THA and 5 patients who underwent TKA with instrumented joint implants. Joint loads, including the resultant joint contact force (FRes), torsional moment around the femoral shaft axis or the tibial axis (MTors), bending moment at the middle of the femoral neck (MBend), torsional moment around the femoral neck axis (MTne), and medial force ratio (MFR) in the knee, were measured during breaststroke swimming at 0...
October 23, 2023: Journal of Bone and Joint Surgery. American Volume
https://read.qxmd.com/read/38070015/towards-a-better-understanding-of-knee-angular-deformities-discrepancies-between-clinical-examination-and-2d-3d-assessments
#17
JOURNAL ARTICLE
Diane Ghanem, Ali Ghoul, Ayman Assi, Ismat Ghanem
INTRODUCTION: Discrepancy between the clinical examination and the 2D/3D radiographs is a common concern in patients with angular or rotational deformities of the lower limbs, as it may alter clinical judgment and subsequent treatment. The aim was to identify such discrepancies and assess determinants that may contribute to their existence. MATERIALS AND METHODS: A retrospective chart review was conducted on 329 consecutive patients (658 lower limbs) who underwent physical examination and long-leg biplanar radiographs in our institution between 2013 and 2018 for limb length discrepancy or angular deformity of the knees (varus/valgus)...
December 9, 2023: Archives of Orthopaedic and Trauma Surgery
https://read.qxmd.com/read/38047570/outcomes-of-late-stages-infantile-blount-s-disease-managed-by-acute-single-stage-medial-hemi-plateau-elevation-and-metaphyseal-osteotomy-eight-case-series
#18
JOURNAL ARTICLE
Vidyasagar Chandankere, Maryada Venkateshwarlu Reddy, Annapareddy Venkata Gurava Reddy
This study aimed to evaluate the clinical and radiological outcomes of surgical intervention involving acute medial hemi-plateau elevation and metaphyseal osteotomy with internal fixation and growth modulation for late-stages Blount's disease. A retrospective analysis was conducted on consecutive patients with late-stages infantile tibia vara between 2014 and 2020. Inclusion criteria consisted of children aged 8 years and older with Blount's disease with Langenskiold stage IV, V or VI, tibia vara more than 30*, medial plateau depression angle (MPDA) exceeding 25* and knee instability with a minimum follow-up period of 3 years...
November 16, 2023: Journal of Pediatric Orthopedics. Part B
https://read.qxmd.com/read/38041942/three-dimensional-printed-patient-specific-guides-for-tibial-deformity-correction-in-small-breed-dogs
#19
JOURNAL ARTICLE
Ji-Won Jeon, Kyu-Won Kang, Woo-Keyoung Kim, Changsu Jung, Byung-Jae Kang
OBJECTIVE: To describe the use of patient-specific 3-D-printed osteotomy, reduction, and compression guides for tibial closing wedge osteotomy in small-breed dogs. ANIMALS: 6 dogs with unilateral tibial deformities. METHODS: Six small-breed dogs with 1 or a combination of tibial deformities, including excessive tibial plateau angle, valgus, and torsion, were scheduled to undergo tibial closing wedge osteotomy using patient-specific 3-D-printed osteotomy, reduction, and compression guides...
December 1, 2023: American Journal of Veterinary Research
https://read.qxmd.com/read/38021800/patellar-dislocation-workup-and-decision-making
#20
REVIEW
Panagiotis V Samelis, Panagiotis Koulouvaris, Olga Savvidou, Andreas Mavrogenis, Vasileios P Samelis, Panayiotis J Papagelopoulos
Acute patellar dislocation (PD) is usually a problem of adolescents and young adults. In most cases, it is a sports-related injury. It is the result of an indirect force on the knee joint, which leads to valgus and external rotation of the tibia relative to the femur. PD is unlikely to occur on a knee with normal patellofemoral joint (PFJ) anatomy. Acute PD consists of an acute injury of the ligamentous medial patellar stabilizers in the background of factors predisposing to patellar instability. These factors are classified into three groups...
October 2023: Curēus
keyword
keyword
64480
1
2
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.