The Accuracy of Digital Templating in Uncemented Total Hip Arthroplasty

2010 ◽  
Vol 25 (4) ◽  
pp. 529-532 ◽  
Author(s):  
Patrick Gamble ◽  
Justin de Beer ◽  
Danielle Petruccelli ◽  
Mitchell Winemaker
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Digital Templating ◽  
Total Hip ◽  
Uncemented Total Hip Arthroplasty

scholarly journals The accuracy of digital templating in uncemented total hip arthroplasty

2018 ◽  
Vol 139 (2) ◽  
pp. 263-268 ◽  
Author(s):  
Lukas A. Holzer ◽  
Georg Scholler ◽  
Stefan Wagner ◽  
Jörg Friesenbichler ◽  
Werner Maurer-Ertl ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Digital Templating ◽  
Total Hip ◽  
Uncemented Total Hip Arthroplasty

scholarly journals Implications of component size and calibration error on digital templating for total hip arthroplasty. A visual matrix from a simple mathematical model

2021 ◽  
Author(s):  
Christoph Kolja Boese ◽  
Tim Rolvien ◽  
Matthias Trost ◽  
Michael Frink ◽  
Jan Hubert ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Standard Procedure ◽  
Calibration Error ◽  
Optimal Size ◽  
Linear Calibration ◽  
Component Size ◽  
Digital Templating ◽  
Total Hip ◽  
Implant Size

Abstract Objective Preoperative digital templating is a standard procedure in total hip arthroplasty. Deviations between template size and final implant size may result from inaccurate calibration, templating as well as intraoperative decisions. So far, the explicit effect of calibration errors on templating has not been addressed adequately. Materials and Methods A mathematical simulation of calibration errors up to ± 24% was applied to the templating of acetabular cups (38 to 72 mm diameter). The effect of calibration errors on template component size as deviation from optimal size was calculated. Results The relationship between calibration error and component size deviation is inverse and linear. Calibration errors have a more pronounced effect on larger component sizes. Calibration errors of 2–6% result in templating errors of up to two component sizes. Common errors of up to 12% may result in templating errors of 3–4 sizes for common implant sizes. A tabular matrix visualizes the effect. Conclusion Calibration errors play a significant role in component size selection during digital templating. Orthopedic surgeons should be aware of this effect and try to identify and address this source of error.

Assessment of an Orthopaedic Templating Software Package for Uncemented Total Hip Arthroplasty

2020 ◽  
Vol 4 (04) ◽  
pp. 155-157
Author(s):  
Michael Newman ◽  
David Hartwright
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Acetabular Cup ◽  
Total Hip ◽  
Pelvic Radiograph ◽  
Uncemented Total Hip Arthroplasty ◽  
Femoral Stems ◽  
Hip Arthroplasties ◽  
Acetabular Components ◽  
Insight Into

AbstractThe aim of this study was to assess a large, single-surgeon dataset of uncemented total hip arthroplasties that had been templated using software. This assessment compared preoperative templated predictions with what was implanted with regard to (1) femoral prosthesis size and (2) acetabular cup size. The operation notes for two types of uncemented total hip arthroplasty performed by a single surgeon between January 9, 2008, and March 21, 2019, were assessed. The data were refined so that only those that were fully templated on a correctly calibrated pelvic radiograph were included. This provided a total of 153 cases. The predicted software template was compared with actual implanted component sizes. With regard to the femoral stems, the templating software was exactly correct in 45.75% of cases and was accurate to within one size in 87.59% of cases. With regard to the acetabular component, the templating software was exactly correct in 52.94% of cases and was accurate to within one size (2 mm) in 86.94% of cases. Templating software offers an accurate prediction of the size of uncemented femoral and acetabular components. In addition, the benefits of templating include cognitive rehearsal, insight into potentially challenging aspects of surgery, and highlighting intraoperative issues where there is a large intraoperative deviation from what is templated. This study demonstrates the congruence and reproducibility of templating software when compared with other smaller studies performed in the literature.

scholarly journals A comparison study of digital templating methods in total hip arthroplasty

2013 ◽  
Vol 11 (8) ◽  
pp. 662-663
Author(s):  
Stephen McCain ◽  
Laurence Cusick ◽  
Gavan McAlinden
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Comparison Study ◽  
Digital Templating ◽  
Total Hip

scholarly journals Total Hip Arthroplasty in Mucopolysaccharidosis Type IH

2011 ◽  
Vol 2011 ◽  
pp. 1-2 ◽  
Author(s):  
S. O'hEireamhoin ◽  
T. Bayer ◽  
K. J. Mulhall
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Autosomal Recessive ◽  
Hip Dysplasia ◽  
Joint Stiffness ◽  
Mucopolysaccharidosis Type ◽  
Hurler Syndrome ◽  
Total Hip ◽  
Uncemented Total Hip Arthroplasty ◽  
Musculoskeletal Manifestations

Children affected by mucopolysaccharidosis (MPS) type IH (Hurler Syndrome), an autosomal recessive metabolic disorder, are known to experience a range of musculoskeletal manifestations including spinal abnormalities, hand abnormalities, generalised joint stiffness, genu valgum, and hip dysplasia and avascular necrosis. Enzyme therapy, in the form of bone marrow transplantation, significantly increases life expectancy but does not prevent the development of the associated musculoskeletal disorders. We present the case of a 23-year-old woman with a diagnosis of Hurler syndrome with a satisfactory result following uncemented total hip arthroplasty.

scholarly journals Short term outcome of primary un-cemented total hip arthroplasty in osteonecrosis of femoral head

2021 ◽  
Vol 7 (3) ◽  
pp. 513
Author(s):  
Mohmad Nawaz Rather ◽  
Wajahat Ahmad Mir ◽  
Shahid Shabir Khan ◽  
Naseer Ahmad Mir ◽  
Nadeem Ali
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Short Term ◽  
Range Of Movement ◽  
Term Outcome ◽  
Osteonecrosis Of Femoral Head ◽  
Total Hip ◽  
Uncemented Total Hip Arthroplasty ◽  
Advanced Stages

<p class="abstract"><strong>Background:</strong> Osteonecrosis of femoral head (ONFH) is characterised by cell death in the subchondral bone caused by abnormalities of blood flow to the femoral head. About 5% to 13% of arthroplasties are performed yearly for ONFH in United States. Ficat and Arlet classification is the commonest system used for grading of ONFH. Advanced stages 3 and 4 are best managed with total hip arthroplasty (THA). THA restores hip range of movement and allows early ambulation in ONFH.</p><p class="abstract"><strong>Methods:</strong> After seeking approval from local institutional ethical committee 25 patients with stage 3 and stage 4 ONFH (Ficat and Arlet) were admitted from OPD of SKIMS MC and Hospital Bemina, Srinagar. The study was conducted from February 2018 to February 2020 in department of Orthopaedics SKIMS MC and Hospital Bemina, Srinagar.  25 patients with mean age of 50.64 years comprising of 13 females and 12 males with unilateral osteonecrosis of femoral head with collapsed head underwent uncemented total hip arthroplasty and were followed up to a minimum of 1 year post-operatively.<strong></strong></p><p class="abstract"><strong>Results:</strong> Outcome was evaluated by comparing pre-operative and post-operative Harris hip scores. The average Harris hip scores improved from 65.87 in the pre-operative group to 96.54 at 1-year follow-up post-operatively. Marked improvement was noted in pain scores. No revisions were performed during the study. One patient developed superficial surgical site infection which healed with supervised dressings and oral antibiotics.</p><p class="abstract"><strong>Conclusions:</strong> Uncemented THA has excellent short-term outcomes in advanced stages of ONFH. It provides mobile hip joint and pain free ambulation shortly after surgery.</p>

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