keyword
MENU ▼
Read by QxMD icon Read
search

knee alignment

keyword
https://www.readbyqxmd.com/read/29051896/outcomes-and-complication-rates-after-primary-anterior-cruciate-ligament-reconstruction-are-similar-in-younger-and-older-patients
#1
Mark E Cinque, Jorge Chahla, Gilbert Moatshe, Nicholas N DePhillipo, Nicholas I Kennedy, Jonathan A Godin, Robert F LaPrade
BACKGROUND: Until recently, anterior cruciate ligament (ACL) tears in older patients were treated conservatively; however, these patients often experienced significant pain and instability. PURPOSE/HYPOTHESIS: The purpose of this study was to compare the patient-reported outcomes, patient satisfaction, and failure rates of primary ACL reconstruction between a younger (age 20-30 years) and older (age 50-75 years) patient cohort. It was hypothesized that patients in the older cohort could achieve comparable clinical outcomes and retear rates following ACL reconstruction with a bone-tendon-bone autograft or allograft compared with the younger patients...
October 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29046242/preoperative-corrections-are-required-for-planning-of-patient-specific-instrumentation-in-total-knee-arthroplasty
#2
Yohei Okada, Atsushi Teramoto, Tomoyuki Suzuki, Yuichiro Kii, Kota Watanabe, Toshihiko Yamashita
BACKGROUND: Patient-specific instrumentation (PSI) is attracting attention as a mechanical method of ensuring the accuracy of osteotomy during total knee arthroplasty (TKA). Few studies have focused on preoperative plans; thus, it is unclear how often initial plans have to be corrected preoperatively and intraoperatively. We investigated the frequency of corrections, the accuracy of intraoperative osteotomy, and postoperative alignment. METHODS: We analyzed 45 knees of 40 patients who underwent TKA using magnetic resonance imaging (MRI)-based PSI...
October 15, 2017: Knee
https://www.readbyqxmd.com/read/29046046/three-dimensional-evaluation-of-similarity-of-right-and-left-knee-joints
#3
Ki-Mo Jang, Jong-Hoon Park, Minho Chang, Youngjun Kim, Deukhee Lee, Sehyung Park, Joon Ho Wang
Purpose: The purpose of this study was to evaluate the anatomical similarity of three-dimensional (3D) morphometric parameters between right and left knees. Materials and Methods: Ten fresh-frozen paired cadaveric knees were tested. Following dissection, footprint areas of the anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) were measured. Surface scanning was performed using a 3D scanner. Scanned data were reproduced and morphometric parameters were measured on specialized software...
October 19, 2017: Knee Surgery & related Research
https://www.readbyqxmd.com/read/29035609/single-surgeon-experience-and-complications-of-a-fixed-bearing-total-ankle-arthroplasty
#4
Garett J Pangrazzi, Erin A Baker, Phillip J Shaheen, Chikezie N Okeagu, Paul T Fortin
BACKGROUND: Total ankle arthroplasty (TAA) has historically resulted in inferior survivorship rates compared with total hip and knee arthroplasty, because of technical issues unique to ankle anatomy. In this study, a single-surgeon series of intra- and postoperative complications as well as resultant reoperations/revisions of the Tornier Salto Talaris, a fixed-bearing TAA prosthesis, were reviewed. METHODS: Medical records from index procedure to latest follow-up of primary TAA were reviewed...
October 1, 2017: Foot & Ankle International
https://www.readbyqxmd.com/read/29028621/combining-valgus-knee-brace-and-lateral-foot-wedges-reduces-external-forces-and-moments-in-osteoarthritis-patients
#5
Amir Ali Jafarnezhadgero, Anderson S Oliveira, Seyed Hamed Mousavi, Morteza Madadi-Shad
Osteoarthritis progression can be related to the external knee adduction and flexion moments during walking. Lateral foot wedges and knee braces have been used as treatment for osteoarthritis, but little is known about their influence on knee joint moments generated in the sagittal and frontal planes. Therefore, the aim of the present study was determine the effects of the isolated and combined use of valgus knee brace and lateral wedge foot orthotic on peak forces and moments during gait in knee osteoarthritis patients...
October 5, 2017: Gait & Posture
https://www.readbyqxmd.com/read/29026941/neutral-alignment-leads-to-higher-knee-society-scores-after-total-knee-arthroplasty-in-preoperatively-non-varus-patients-a-prospective-clinical-study-using-3d-ct
#6
Omer Slevin, Anna Hirschmann, Filippo F Schiapparelli, Felix Amsler, Rolf W Huegli, Michael T Hirschmann
PURPOSE: The optimal coronal alignment is still under debate. However, in most of the studies, alignment was only assessed using radiographs, which are not accurate enough for assessment of tibial and femoral TKA position. The primary purpose of this study was to assess the relationship between coronal TKA alignment using 3D-reconstructed CTs and clinical outcome in patients with preoperative varus in comparison with patients with natural or valgus deformity. It was the hypothesis that neutral limb alignment shows a better outcome after TKA...
October 12, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29021879/a-comparison-of-plain-radiography-with-computer-tomography-in-determining-coronal-and-sagittal-alignments-following-total-knee-arthroplasty
#7
G N Solayar, J Chinappa, I A Harris, D B Chen, S J Macdessi
Introduction: Optimal coronal and sagittal component positioning is important in achieving a successful outcome following total knee arthroplasty (TKA). Modalities to determine post-operative alignment include plain radiography and computer tomography (CT) imaging. This study aims to determine the accuracy and reliability of plain radiographs in measuring coronal and sagittal alignment following TKA. Materials and Methods: A prospective, consecutive study of 58 patients undergoing TKA was performed comparing alignment data from plain radiographs and CT imaging...
July 2017: Malaysian Orthopaedic Journal
https://www.readbyqxmd.com/read/29020716/improving-joint-pain-and-function-in-osteoarthritis
#8
Claire Owens, Philip G Conaghan
Osteoarthritis has become a major chronic pain condition. It affects more than 10% of adults and accounts for almost 10% of health service resources. The impact of osteoarthritis is amplified by underuse of effective muscle strengthening exercises and a focus on often less effective and poorly tolerated analgesic therapies. Although traditionally considered to be primarily a disease of cartilage, there is now ample evidence that typical clinical osteoarthritis involves multiple tissue pathologies. Increased BMI is associated with a higher incidence of knee osteoarthritis...
December 2016: Practitioner
https://www.readbyqxmd.com/read/28993855/postoperative-fixed-flexion-deformity-greater-than-10%C3%A2-lead-to-poorer-functional-outcome-10%C3%A2-years-after-unicompartmental-knee-arthroplasty
#9
Jared Ze Yang Yeh, Jerry Yongqiang Chen, Joel Wei-An Lim, Hee Nee Pang, Darren Keng Jin Tay, Shi-Lu Chia, Ngai Nung Lo, Seng Jin Yeo
PURPOSE: The primary aim of this study was to evaluate the influence of postoperative fixed flexion deformity (FFD) on the clinical outcomes 10 years after unicompartmental knee arthroplasty (UKA). The secondary aim was to identify predictors for the occurrence of postoperative FFD. METHODS: Patients who underwent UKA between 2003 and 2007 were prospectively followed up for 10 years. A total of 172 patients were categorized into 3 groups based on the amount of postoperative FFD: (1) 0° or less (Min-FFD), (2) 1°-9° (Mid-FFD), and (3) 10° or more (Max-FFD)...
October 9, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28993086/chronological-changes-in-axial-alignment-of-the-ipsilateral-hip-and-knee-after-total-hip-arthroplasty
#10
Keisuke Akiyama, Katsuya Nakata, Makoto Kitada, Mitsuyoshi Yamamura, Hajime Owaki, Takeshi Fuji
BACKGROUND: Internal rotation of the hip and lateral patellar tilt increases after total hip arthroplasty (THA). However, it remains unknown whether these parameters change with time after the index THA. METHODS: A total of 91 patients undergoing 2-stage bilateral primary THAs between January 2008 and May 2014 were included to assess the association of chronological changes in internal rotation of the hip or lateral patellar tilt with anthropometric and perioperative parameter and changes in alignment after the index THA...
September 19, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28993079/lateral-femoral-epicondylar-osteotomy-for-correction-of-fixed-valgus-deformity-in-total-knee-arthroplasty-a-technical-note
#11
Jacob M Conjeski, Giles R Scuderi
BACKGROUND: Multiple surgical techniques exist to restore limb alignment and to balance soft tissues in valgus knees during total knee arthroplasty (TKA). One technique is to perform a lateral femoral epicondylar osteotomy. METHODS: A retrospective analysis was performed on all patients with a fixed valgus deformity that was corrected with a lateral femoral epicondylar osteotomy during TKA. Preoperative and postoperative Knee Society Knee Scores, knee stability, range of motion, and radiographic alignment were recorded...
September 19, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28990969/dosimetry-in-radiosynoviorthesis-90y-vs-153sm
#12
Mirta Barbara Torres Berdeguez, Sylvia Thomas, Susie Medeiros, Lidia Vasconcellos de Sá, Felix Mas Milian, Ademir Xavier da Silva
Although there are several radionuclides suitable for radiosynoviorthesis (RSO), not all of them can irradiate deeper synovium. Yttrium-90 (Y) is the beta radionuclide with more penetration range; therefore, it is predominantly used to treat knees. The aim of this paper is to highlight several dosimetry concepts to compare Y and Sm, also discussing the feasibility of implementing a dose planning methodology for both in RSO. The MCNPX Monte Carlo nuclear code version 2.6 was used for calculating S-values from which the activity to be injected into the joint was obtained...
October 5, 2017: Health Physics
https://www.readbyqxmd.com/read/28978460/three-dimensional-printed-patient-specific-cutting-guides-for-femoral-varization-osteotomy-do-it-yourself
#13
Juan Arnal-Burró, Rubén Pérez-Mañanes, Eudaldo Gallo-Del-Valle, Cristina Igualada-Blazquez, Manuel Cuervas-Mons, Javier Vaquero-Martín
INTRODUCTION: In valgus knees of young patients, opening-wedge distal femoral osteotomy is a valid treatment option for axial corrections. It allows the surgeon to achieve accurate correction, which is directly related to the functional outcome and survivorship of the osteotomy. This study presents a new technique based on three-dimensional (3D)-printed cutting guides for opening-wedge distal femoral osteotomies, in which pre-operative planning and intraoperative executional accuracy play a major role...
October 1, 2017: Knee
https://www.readbyqxmd.com/read/28974401/the-failing-medial-compartment-in-the-varus-knee-and-its-association-with-cam-deformity-of-the-hip
#14
Jonathan S Palmer, Antony J Palmer, Luke D Jones, Sujin Kang, Nicholas Bottomley, William M Jackson, A Paul Monk, David J Beard, Kassim Javaid, Sion Glyn-Jones, Andrew J Price
BACKGROUND: Since 2011, the knee service at the Nuffield Orthopaedic Centre has been offering a neutralising medial opening wedge high tibial osteotomy (HTO) to a specific group of patients with genu varum and early knee osteoarthritis. An observation was made concerning this group of patients and the presence of CAM deformity at the hip. The aim of this study is to establish whether or not any association exists between the OA phenotype shared by our HTO group and the incidence of CAM deformity at the hip...
September 30, 2017: Knee
https://www.readbyqxmd.com/read/28974398/differences-in-patellofemoral-alignment-as-a-result-of-patellar-shape-in-cruciate-retaining-total-knee-arthroplasty-without-patellar-resurfacing-at-a-minimum-three-year-follow-up
#15
Atsuo Inoue, Yuji Arai, Shuji Nakagawa, Hiroaki Inoue, Yasushi Yoshihara, Shouichi Yamazoe, Toshikazu Kubo
BACKGROUND: Although the patellofemoral (PF) joint shape of the femoral implant in a particular prosthetic design is identical, the articular surface shape of the patella varies between individuals. The present study investigated the effects of patellar shape on the postoperative PF joint in a cruciate-retaining total knee arthroplasty (CR-TKA) without patellar resurfacing and with at least three years of follow-up. METHODS: This study investigated 76 knees of 62 patients who underwent CR-TKA without patellar resurfacing for varus osteoarthritis...
September 30, 2017: Knee
https://www.readbyqxmd.com/read/28971359/baropodometry-on-patients-after-total-knee-arthroplasty
#16
A Notarnicola, G Maccagnano, A Fiore, A Spinarelli, L Montenegro, M Paoloni, F Pastore, S Tafuri, B Moretti
PURPOSE: It is well known that total knee replacement surgery decreases pain and improves function, but the effect on postural assessment needs to be studied better with the use of new technological devices. Total knee arthroplasty (TKA) improves motor coordination and stability of the knee. On the other hand, changing joint functionality can modify the balance. The aim of this trial is to record and analyze the static and dynamic baropodometric data of patients in the first few months following joint replacement...
October 3, 2017: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/28970998/a-modified-osteotomy-for-anteromedialization-of-the-tibial-tubercle
#17
Michael G Saper, Benjamin A Cox, David A Shneider
Tibial tubercle osteotomy is a common treatment option for a number of patellofemoral joint disorders including chondromalacia, "anterior knee pain" syndromes, patellofemoral arthritis, and patellar instability. Tibial tubercle osteotomy can modify tracking and/or patellofemoral contact forces to effect the unloading of chondral defects of the patella or trochlea, correct multiplanar suboptimal alignment, and be used in conjunction with soft-tissue stabilization procedures for instability. The purpose of this Technical Note is to describe, in detail, a modified osteotomy for anteromedialization of the tibial tubercle...
August 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28970124/effects-of-toe-in-and-toe-in-with-wider-step-width-on-level-walking-knee-biomechanics-in-varus-valgus-and-neutral-knee-alignments
#18
Hunter J Bennett, Guangping Shen, Harold E Cates, Songning Zhang
BACKGROUND: Increased peak external knee adduction moments exist for individuals with knee osteoarthritis and varus knee alignments, compared to healthy and neutrally aligned counterparts. Walking with increased toe-in or increased step width have been individually utilized to successfully reduce 1st and 2nd peak knee adduction moments, respectfully, but have not previously been combined or tested among all alignment groups. The purpose of this study was to compare toe-in only and toe-in with wider step width gait modifications in individuals with neutral, valgus, and varus alignments...
September 29, 2017: Knee
https://www.readbyqxmd.com/read/28968747/patellofemoral-morphology-is-not-related-to-pain-using-three-dimensional-quantitative-analysis-in-an-older-population-data-from-the-osteoarthritis-initiative
#19
Benjamin T Drew, Michael A Bowes, Anthony C Redmond, Bright Dube, Sarah R Kingsbury, Philip G Conaghan
Objectives: Current structural associations of patellofemoral pain (PFP) are based on 2D imaging methodology with inherent measurement uncertainty due to positioning and rotation. This study employed novel technology to create 3D measures of commonly described patellofemoral joint imaging features and compared these features in people with and without PFP in a large cohort. Methods: We compared two groups from the Osteoarthritis Initiative: one with localized PFP and pain on stairs, and a control group with no knee pain; both groups had no radiographic OA...
September 5, 2017: Rheumatology
https://www.readbyqxmd.com/read/28963153/do-varus-or-valgus-outliers-have-higher-forces-in-the-medial-or-lateral-compartments-than-those-which-are-in-range-after-a-kinematically-aligned-total-knee-arthroplasty-limb-and-joint-line-alignment-after-kinematically-aligned-total-knee-arthroplasty
#20
T J Shelton, A J Nedopil, S M Howell, M L Hull
AIMS: The aims of this study were to determine the proportion of patients with outlier varus or valgus alignment in kinematically aligned total knee arthroplasty (TKA), whether those with outlier varus or valgus alignment have higher forces in the medial or lateral compartments of the knee than those with in-range alignment and whether measurements of the alignment of the limb, knee and components predict compartment forces. PATIENTS AND METHODS: The intra-operative forces in the medial and lateral compartments were measured with an instrumented tibial insert in 67 patients who underwent a kinematically aligned TKA during passive movement...
October 2017: Bone & Joint Journal
keyword
keyword
118383
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

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"