Total Ankle Replacement for Treatment of Avascular Necrosis of the Talus

Tan, Jin Aun; Bajuri, Mohd Yazid; Leong, Juzaily F; Kb, Levin; Alias, Azammuddin

doi:10.22159/ajpcr.2018.v11i8.25602

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…TAR is the replacement of the tibiotalar joint with removal of the injured portions of the talus and the tibia to relieve pain and preserve limb length and mobility 20,21 . This procedure can be used for the treatment of osteonecrosis when necrosis of the talar body is <50%; if the necrosis is ≥50%, the procedure is absolutely contraindicated 4 , although many surgeons would consider any collapse of the talar dome as a contraindication to TAR.…”

Section: Resultsmentioning

confidence: 99%

“…The primary concern with TAR is talar subsidence 21 . Thus, in order for TAR to be successful, the interface between the prosthesis and the natural bone must be stable, and good bone stock must be available 4,20,21 . The risk of collapse of the talar body following ankle replacement increases according to the degree of osteoporosis and arthritis 23 .…”

Section: Osteonecrosis Of the Talus And Treatmentsmentioning

confidence: 99%

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Clinical Use of Talar Prostheses

2021

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The blood supply to the talus is vulnerable to damage, making the talus susceptible to osteonecrosis, with limited treatment options. » Talar bone replacement has been investigated as a treatment option to preserve ankle function and maintain limb length. » Successful talar bone replacements have been performed for the past .35 years, with variations in design, methods of fixation, materials, and manufacturing techniques.» The designs of talar prostheses range from custom-made partial (talar body) or total prostheses to prefabricated universal (non-custommade) prostheses.» Total talar prostheses have been demonstrated to function better than partial talar prostheses; however, there is a need for long-term studies regarding custom-made total talar prostheses and prefabricated universal talar prostheses in order to determine their long-term effectiveness.Disclosure: A.S.D. was supported by a summer studentship provided by Alberta Innovates Health Solutions. The funding source did not place a role in this investigation. The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/ JBJSREV/A701).

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Section: Resultsmentioning

confidence: 99%

Section: Osteonecrosis Of the Talus And Treatmentsmentioning

confidence: 99%

Clinical Use of Talar Prostheses

2021

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“…Computer graphics involve the representation of image data using a computer for the better understanding and interpretation of data [18], [19]. Preoperative planning for high tibial osteotomy is vital for the surgeon in planning the location for cutting the tibia, defining the angle and preview the forecast result.…”

Section: Discussionmentioning

confidence: 99%

OstAid: Digital Method for Preoperative Planning in High Tibial Osteotomy

Awang¹

2020

IJATCSE

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This Ostetotomy Aid was developed to help orthopaedic surgeons on digital preoperative planning specifically to define the center of rotation of angulation for osteotomy. The current problem facing by the surgeons is that even the radiograph use is in digital formats, but it only supports half the procedure required and the surgeons still need to complete other procedures manually. Therefore, new software will be developed to support all procedures digitally. This study will compare the mean of radiographic outcomes based on two weeks interval testing using the same data. Three raters are selected to test the current and the newly-developed software either by having the same or better results than the existing software in defining the center of rotation of angulation for osteotomy. Twenty-six digital radiographs from thirteen patients who underwent osteotomy with varus deformity were retrieved from Picture Archiving and Communications Systems at Universiti Kebangsaan Malaysia Medical Centre within 2016-2018. The result from the twenty-six images which used both software shows that there is no significance between them. It confirms that the results for correction angle using the new software were accepted and as good as the current software.

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“…Computer graphics involve the representation of image data using a computer for the better understanding and interpretation of data [1]. Visualization is the branch of computer graphics which creates images to represent a particular set of data [2], while medical visualization requires the use of computers to create three-dimensional (3D) images from medical imaging data sets [3].…”

Section: Introductionmentioning

confidence: 99%

Total Ankle Replacement Digital Templating Method

Shapi’i *,

Hasan,

Sulaiman

2019

IJRTE

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Total ankle replacement (TAR) requires a step in the pre-surgery planning procedure that can help in determining the most suitable size for the implant. In recent years, digital implants of a size that is suitable for the patient have been widely used in the process of joint replacement surgery for hip and knee joints. Many patients have experienced traumatic damage to the ankle joint, and pre-surgery planning is currently still at the stage of using acetate templates and radiographs, which can cause errors in the surgical procedure. Therefore, a method of determining the implant size by trial and error needs to be developed so that pre-surgical planning can be implemented effectively. In this study, the Orthopaedic-TAR (OrthoAnkle) system is developed using Java software and is supported by Adobe Photoshop. This system allows a surgeon to determine the size of the implant effectively. The components involved in ankle joint replacement are Hintegra implants, designed using AutoCAD. In this way, the size of the Hintegra implant is determined based on the damage to the patient's ankle joint. DICOM X-ray images for several patients were randomly selected to test the accuracy and effectiveness of the size of the implant. A suitable size of implant can facilitate the surgical procedure and reduce damage to the implant after surgery. The results of this study, and particularly the model constructed here, contribute to the templating of digital implants for total ankle replacement. The results of the prototype test show a good response and a high level of effectiveness.

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Total Ankle Replacement for Treatment of Avascular Necrosis of the Talus

Cited by 4 publications

References 8 publications

Clinical Use of Talar Prostheses

Clinical Use of Talar Prostheses

OstAid: Digital Method for Preoperative Planning in High Tibial Osteotomy

Total Ankle Replacement Digital Templating Method

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