keyword
https://read.qxmd.com/read/34563732/pelvic-position-lying-on-a-traction-table-during-tha-by-direct-anterior-approach-comparison-with-the-standing-position-and-influence-on-the-acetabular-cup-anteversion
#21
JOURNAL ARTICLE
Guillaume Auberger, Erwan Pansard, Pierre-Alban Bouche, Jean-Luc Marmorat, Thierry Judet, Guillaume Lonjon
INTRODUCTION: The placement of prostheses for a total hip arthroplasty (THA) is essential to limit complications and optimize functional results. In a recent study of more than 100 THA placed through a direct anterior approach using a traction table, we found that the mean anteversion of the cup was greater (30°) than recommended (20°). To explain this phenomenon, we considered that the anterior pelvic plane (APP), defined by the plane passing through the anterior-superior iliac spines and the pubic symphysis, which serves as a landmark for the placement and calculation of the anteversion of the cup, was not horizontal when the patient was lying on the traction table...
December 2021: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://read.qxmd.com/read/34552889/improving-acetabular-component-positioning-in-supine-direct-anterior-total-hip-arthroplasty-with-a-transparency-template-a-novel-simple-and-cost-effective-technique
#22
JOURNAL ARTICLE
Sheng Xu, Jason Beng Teck Lim, Hee Nee Pang
PURPOSE: A novel and simple method to ensure accurate acetabular component anteversion and inclination intraoperatively with the use of a transparency template is described. MATERIALS AND METHODS: Patients who underwent total hip arthroplasty (THA) via direct anterior approach (DAA) from June 2019 to January 2020 were included. A transparency template that can be placed over the image intensifier monitor to allow surgeons an accurate reading of the acetabular component position intraoperatively was designed, developed and utilized to determine effectiveness...
September 2021: Hip & Pelvis
https://read.qxmd.com/read/34495893/a-modeling-study-of-a-patient-specific-safe-zone-for-tha-calculation-validation-and-key-factors-based-on-standing-and-sitting-sagittal-pelvic-tilt
#23
JOURNAL ARTICLE
Hao Tang, Ya Li, Yixin Zhou, Siyuang Wang, Yongqiang Zhao, Zhuyi Ma
BACKGROUND: Lumbar-pelvic stiffness and sagittal imbalance have been reported to increase the risk of dislocation and wear after THA. One potential way to approach this concern is by identifying patient-specific safe zones for THA components based on the standing and sitting sagittal pelvic tilt. However, there is no algorithm to integrate the standing and sitting pelvic tilt into the surgical plan of component orientations. QUESTIONS/PURPOSES: We established a new mathematical algorithm for determining a patient-specific safe zone for THA by integrating the impingement-free ROM requirements of standing and sitting while preventing edge loading while standing...
January 1, 2022: Clinical Orthopaedics and related Research
https://read.qxmd.com/read/34424781/preoperative-radiographs-to-predict-component-malposition-in-direct-anterior-approach-total-hip-arthroplasty
#24
JOURNAL ARTICLE
Matthew D Free, Ian Barnes, Matthew Hutchinson, Paul Harvie
INTRODUCTION: There is conflicting evidence as to whether or not patients undergoing total hip arthroplasty (THA) via the direct anterior approach (DAA) have increased risk of component malposition. The aim of this study was to investigate whether specific preoperative radiographic features were predictive of postoperative component malposition in DAA THA. PATIENTS AND METHODS: We examined 204 THA operations performed for osteoarthritis via the DAA at a single institution...
August 23, 2021: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://read.qxmd.com/read/34406431/accuracy-of-acetabular-cup-placement-positively-correlates-with-level-of-training
#25
JOURNAL ARTICLE
Vincentius J Suhardi, Yu-Fen Chiu, Peter K Sculco, Alejandro Gonzalez Della Valle
BACKGROUND: Accurate acetabular component placement may reduce the risk of complication after total hip arthroplasty (THA). While surgeon experience and volume may reduce outliers, little is known how cup positioning accuracy and consistency relates to level of training (resident, fellow, attending) and whether trainee level impacts the magnitude and direction of cup placement errors. METHODS: Ninety patients undergoing posterolateral computer-assisted navigation THA were included for analysis...
November 2021: International Orthopaedics
https://read.qxmd.com/read/34312828/robotic-assisted-total-hip-arthroplasty-in-patients-who-have-developmental-hip-dysplasia
#26
JOURNAL ARTICLE
Matthew Hepinstall, Frank Mota, Brandon Naylor, Gloria Coden, Nishanth Muthusamy, Hytham S Salem, Michael A Mont
INTRODUCTION: Total hip arthroplasty (THA) in the setting of developmental dysplasia of the hip (DDH) presents more inherent complexities than routine primary THA for osteoarthritis. These include acetabular bone deficiency, limb length discrepancy (LLD), and abnormal femoral anteversion. Three-dimensional planning and robot-assisted (RA) bone preparation may simplify these complex procedures and make them more reproducible. The purpose of this study was to evaluate radiographic and clinical outcomes in a cohort of patients who had DDH and underwent an RA THA...
July 26, 2021: Surgical Technology International
https://read.qxmd.com/read/34169356/digital-templating-for-the-implantation-of-a-curved-short-hip-stem-with-an-anterolateral-mis-approach-shows-gender-differences-in-digital-templating
#27
JOURNAL ARTICLE
Matthias Luger, Rainer Hochgatterer, Matthias C Klotz, Günter Hipmair, Tobias Gotterbarm, Bernhard Schauer
PURPOSE: Digital templating shows reliable accuracy for straight stem systems. In recent years, the implantation of short stems through minimally invasive approaches has gained more popularity. Minimally invasive approaches (MIS) show the risk of undersizing femoral components. Therefore, we questioned the planning adherence for a curved short stem and a bi-hemispherical acetabular cup implanted through an anterolateral MIS approach. METHODS: A consecutive series of 964 hips (index surgery between 2014 and 2019) with Fitmore® curved short stem and Allofit/-S® acetabular cup (both ZimmerBiomet Inc, Warsaw, IN) were included...
July 2022: Archives of Orthopaedic and Trauma Surgery
https://read.qxmd.com/read/33757470/accuracy-of-a-portable-accelerometer-based-navigation-system-for-cup-placement-and-intraoperative-leg-length-measurement-in-total-hip-arthroplasty-a-cross-sectional-study
#28
JOURNAL ARTICLE
Hiromasa Tanino, Yasuhiro Nishida, Ryo Mitsutake, Hiroshi Ito
BACKGROUND: Complications after total hip arthroplasty (THA) are frequently the consequence of malpositioned components or leg length discrepancy after surgery. Recently, a new version of a portable, accelerometer-based hip navigation system (New HipAlign) was made available with a change in the method of measuring cup abduction and the addition of a leg length measurement function. The purposes of this study were to investigate cup positioning and to examine the accuracy of leg length measurement with New HipAlign...
March 23, 2021: BMC Musculoskeletal Disorders
https://read.qxmd.com/read/33561868/primary-robotic-arm-assisted-total-hip-arthroplasty-an-analysis-of-501-hips-with-44-month-follow-up
#29
JOURNAL ARTICLE
Benjamin G Domb, Jeffrey W Chen, Cynthia Kyin, Rishika Bheem, Jarod Karom, Jacob Shapira, Philip J Rosinsky, Ajay C Lall, David R Maldonado
The aim of this study was to report patient-reported outcome measurements in a large group of patients who underwent robotic-arm assisted primary total hip arthroplasty (THA). Prospectively collected data were retrospectively reviewed between April 2012 and May 2017. Primary THAs using the Mako robotic-arm assisted (Mako Surgical Corp [Stryker]) with minimum 2-year follow-up for Harris Hip Score (HHS) and Forgotten Joint Score-12 (FJS-12) were included. Exclusion criteria were body mass index (BMI) of 40 kg/m2 or greater, age younger than 21 years, workers' compensation, or unwillingness to participate...
February 9, 2021: Orthopedics
https://read.qxmd.com/read/33516634/the-effect-of-functional-pelvic-tilt-on-the-three-dimensional-acetabular-cup-orientation-in-total-hip-arthroplasty-dislocations
#30
JOURNAL ARTICLE
Thom E Snijders, Tom P C Schlösser, Nathanael D Heckmann, Taro Tezuka, Rene M Castelein, Rob P Stevenson, Harry Weinans, Arthur de Gast, Lawrence D Dorr
BACKGROUND: Anterior and posterior pelvic tilt appears to play a role in total hip arthroplasty (THA) stability. When changing from the standing to the sitting position, the pelvis typically rotates posteriorly while the hips flex and this affects the femoro-acetabular positions. This case-control study compares changes in 3-D acetabular cup orientation during functional pelvic tilt between posterior THA dislocations vs stable THAs. METHODS: Standing and sitting 3-D cup orientation was compared between fifteen posterior dislocations vs 233 prospectively followed stable THAs...
June 2021: Journal of Arthroplasty
https://read.qxmd.com/read/33425373/three-dimensional-pre-operative-planning-of-primary-hip-arthroplasty-a-systematic-literature-review
#31
REVIEW
Maria Moralidou, Anna Di Laura, Johann Henckel, Harry Hothi, Alister J Hart
Three-dimensional (3D) pre-operative planning in total hip arthroplasty (THA) is being recognized as a useful tool in planning elective surgery, and as crucial to define the optimal component size, position and orientation. The aim of this study was to systematically review the existing literature for the use of 3D pre-operative planning in primary THA.A systematic literature search was performed using keywords, through PubMed, Scopus and Google Scholar, to retrieve all publications documenting the use of 3D planning in primary THA...
December 2020: EFORT Open Reviews
https://read.qxmd.com/read/33238012/short-term-clinical-outcomes-of-robotic-arm-assisted-total-hip-arthroplasty-a-pair-matched-controlled-study
#32
JOURNAL ARTICLE
Itay Perets, John P Walsh, Brian H Mu, Yosif Mansor, Philip J Rosinsky, David R Maldonado, Ajay C Lall, Benjamin G Domb
Advances have made robotic assistance a viable option in total hip arthroplasty (THA). However, the clinical outcomes of this procedure relative to manual THA are limited in the literature. This study compared robotic-arm assisted (RAA) THA and manual THA at minimum 2-year follow-up. Data were collected prospectively on all THAs performed from July 2011 to January 2015. Patients were included if they underwent RAA primary THA for idiopathic osteoarthritis and had minimum follow-up of 2 years. The following patient-reported outcomes were compared: Harris Hip Score (HHS), Forgotten Joint Score (FJS-12), visual analog scale (VAS) pain score, and satisfaction...
November 25, 2020: Orthopedics
https://read.qxmd.com/read/33072404/pelvic-motion-the-key-to-understanding-spine-hip-interaction
#33
REVIEW
Javier Pizones, Eduardo García-Rey
Pelvic motion acting as a hinge between the spine and hips is essential to maintain proper balance during bipedalism. Pelvic rotation is recruited as a compensation mechanism when spinal malalignment occurs.This pelvic rotation can affect functional acetabular orientation, and consequently functional cup positioning if a total hip arthroplasty (THA) is needed. Pelvic retroversion, frequently associated with degenerative spinal changes, implies an increase of acetabular version.Patients with flexible lumbar spines (spine users) protect the hip joint...
September 2020: EFORT Open Reviews
https://read.qxmd.com/read/33032565/ellipse-method-for-measuring-liaw-s-anteversion-of-the-acetabular-component-after-total-hip-arthroplasty
#34
JOURNAL ARTICLE
Kuei-Lin Yeh, Tai-Yin Wu, Hsuan-Hsiao Ma, Sheng-Mou Hou, Chen-Kun Liaw
BACKGROUND: Several cup anteversion measurements for post-operative total hip arthroplasty (THA) surgery have been described. We developed the standardized Liaw's trigonometric method to eliminate the influence of patient position, which is the most accurate method for cup anteversion measurement. We then developed an ellipse method using the Elliversion software and reported an interobserver error reduction in 2013. In this study, we attempted to apply this ellipse method in the clinic and compared its accuracy with the standard trigonometric version...
October 8, 2020: BMC Musculoskeletal Disorders
https://read.qxmd.com/read/33009235/the-effect-of-postural-pelvic-dynamics-on-the-three-dimensional-orientation-of-the-acetabular-cup-in-tha-is-patient-specific
#35
JOURNAL ARTICLE
Thom E Snijders, Tom P C Schlösser, Marijn van Straalen, René M Castelein, Rob P Stevenson, Harrie Weinans, Arthur de Gast
BACKGROUND: Sagittal pelvic dynamics mainly consist of the pelvis rotating anteriorly or posteriorly while the hips flexes, and this affects the femoroacetabular or THA configuration. Thus far, it is unknown how the acetabular cup of the THA in the individual patient reorients with changing sagittal pelvic dynamics. QUESTIONS/PURPOSES: The aim of this study was to validate a method that establishes the three-dimensional (3-D) acetabular cup orientation with changing sagittal pelvic dynamics and describe these changes during functional pelvic dynamics...
March 1, 2021: Clinical Orthopaedics and related Research
https://read.qxmd.com/read/33008740/comparison-of-the-accuracy-between-imageless-navigation-and-manual-freehand-approaches-for-total-hip-arthroplasty-a-systematic-review-and-meta-analysis
#36
JOURNAL ARTICLE
Yang-Yang Gao, Rong Zhang, Xian-Da Che, Chun-Fang Wang, Dong-Ping Shi, Bin Liang, Peng-Hua Li, Shu-Fen Liang, Peng-Cui Li
PURPOSE: Several researches comparing the imageless navigation (IN) system and manual freehand (MF) approaches for the total hip arthroplasty (THA) have been published, but the curative effect is still contentious. This meta-analysis aims to systematically compare the differences between the two approaches. METHODS: Random controlled trials which compared the clinical efficacy between IN and MF approaches for THA were retrieved between June 1999 and June 2019, from PubMed, Embase, Cochrane Library, etc...
September 17, 2020: Chinese Journal of Traumatology
https://read.qxmd.com/read/32917462/prior-pelvic-osteotomy-affects-the-outcome-of-subsequent-total-hip-arthroplasty
#37
JOURNAL ARTICLE
Steven Yacovelli, Mohammad Abdelaal, Yale Fillingham, Ryan Sutton, Rachel Madding, Javad Parvizi
BACKGROUND: Although pelvic osteotomy (PO) is an important surgical procedure that can alleviate symptoms and potentially slow progression of osteoarthritis in patients with development dysplasia of the hip, some patients eventually require conversion to total hip arthroplasty (THA). This study aimed to determine the outcome of conversion THA in patients with prior PO. METHODS: Forty nine patients with a history of prior PO who underwent conversion THA at a single institution were matched at a 1:3 ratio based on the date of surgery, age, gender, and body mass index with 147 developmental dysplasia of the hip patients who underwent primary THA without prior PO...
August 4, 2020: Journal of Arthroplasty
https://read.qxmd.com/read/32875014/the-direct-anterior-approach-total-hip-arthroplasty-reliably-achieves-safe-zones-for-combined-anteversion
#38
JOURNAL ARTICLE
J Benjamin Jackson, J Ryan Martin, Aric Christal, John L Masonis, Bryan D Springer, J Bohannon Mason
Background: In total hip arthroplasty (THA), component position is critical to avoid instability and improve longevity. Appropriate combined femoral and acetabular component anteversion is important for improved THA stability and increased impingement-free range of motion. In direct anterior THA (DA-THA), concern has been expressed regarding the accuracy of femoral component positioning. This study seeks to quantify acetabular, femoral, and combined component orientation relative to the accepted "safe zones" in patients who have undergone DA-THA...
December 2020: Arthroplasty Today
https://read.qxmd.com/read/32732575/the-impingement-free-prosthesis-specific-and-anatomy-adjusted-combined-target-zone-for-component-positioning-in-tha-depends-on-design-and-implantation-parameters-of-both-components
#39
JOURNAL ARTICLE
Karl-Heinz Widmer
BACKGROUND: Lewinnek's recommendation for orienting the cup in THA is criticized because it involves a static assessment of the safe zone and because it does not consider stem geometry. A revised concept of the safe zone should consider those factors, but to our knowledge, this has not been assessed. QUESTIONS/PURPOSES: (1) To determine the shape, size, and location of target zones for combined cup and stem orientation for a straight stem/hemispheric cup THA to maximize the impingement-free ROM and (2) To determine whether and how these implant positions change as stem anteversion, neck-shaft angle, prosthetic head size and target range of movements are varied...
August 2020: Clinical Orthopaedics and related Research
https://read.qxmd.com/read/32638123/achievement-of-optimal-implant-alignment-using-taper-wedge-stems-with-cup-first-tha-through-the-mis-antero-lateral-approach
#40
JOURNAL ARTICLE
Taishi Okada, Shigeo Fukunishi, Shinichi Yoshiya, Toshiya Tachibana, Yuki Fujihara, Yoshinobu Masumoto, Makoto Kanto, Yu Takeda
PURPOSE: Combined anteversion (CA) technique (stem-first procedure) has become generally accepted as an ideal means to achieve optimal CA value in THA. However, we hypothesized that CA technique for patients with various native femoral anteversions could pose a risk of anterior or posterior cup protrusion. In the present study, we examined whether it is possible to use the taper wedge stem to change the stem version to achieve optimal CA while avoiding cup protrusions with the cup-first procedure through minimally invasive (MIS) antero-lateral approach...
December 2020: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
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