Dosages of ionizing radiation during limb diagnostic X-ray examinations

Bekas, Marcin; Pachocki, Krzysztof A; Waśniewska, Elżbieta; Bogucka, Dagmara; Magiera, A.

doi:10.13075/mp.5893.00371

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…At our institution, a standard knee CT protocol exposes the patient to an average effective radiation dose of 1.99 mSv. Similarly, the effective radiation dose for orthogonal knee x-rays will vary from hospital to hospital [23]. At our institution, standard orthogonal knee x-rays expose the patient to an effective radiation dose of approximately 0.6 μSv.The LDCT protocol presented in this study was developed to allow 3D measurement of bony tunnel position while minimizing radiation exposure to the patient.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of a novel lower radiation computed tomography protocol for assessment of tunnel position post anterior cruciate ligament reconstruction

et al. 2020

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Background: Anterior cruciate ligament (ACL) reconstruction is a common orthopaedic procedure. We developed a novel, low dose computed tomography (LDCT) protocol to assess tunnel position post-operatively. The effective radiation dose of this protocol is < 0.5millisieverts (mSv), which is significantly less than the 2 mSv dose for a conventional CT protocol. The aim of this study was to assess the accuracy of the LDCT protocol for determining tunnel position. Methods: Twenty-six patients who underwent primary ACL reconstruction were included in the study. A LDCT scan was performed 6 weeks post-operatively. Femoral and tibial tunnel positions were measured on three dimensional (3D) reconstructions using previously validated techniques. Measurements were performed independently by three observers at two time points, 4 weeks apart. Results: There was excellent intra-and inter-rater reliability for all measurements using the images obtained from the LDCT protocol. Intra-class correlation coefficient (ICC) values were > 0.9 for all measurements. Conclusions: The LDCT protocol described in this study accurately demonstrates femoral and tibial tunnels post ACL reconstruction, while exposing the patient to a quarter of the radiation dose of a conventional CT. This protocol could be used by orthopaedic surgeons for routine post-operative imaging, in place of plain film radiographs.

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Section: Discussionmentioning

confidence: 99%

Evaluation of a novel lower radiation computed tomography protocol for assessment of tunnel position post anterior cruciate ligament reconstruction

et al. 2020

View full text Add to dashboard Cite

show abstract

“…At our institution, a standard knee CT protocol exposes the patient to an average effective radiation dose of 1.99 mSv. Similarly, the effective radiation dose for orthogonal knee x-rays will vary from hospital to hospital [17]. At our institution, standard orthogonal knee x-rays expose the patient to an effective radiation dose of approximately 0.6µSv.The LDCT protocol presented in this study was developed to allow 3D measurement of bony tunnel position while minimizing radiation exposure to the patient.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of a novel lower radiation computed tomography protocol for assessment of tunnel position post anterior cruciate ligament reconstruction

Vasudeva¹,

Key

Phillips

et al. 2020

Preprint

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Background Anterior cruciate ligament (ACL) reconstruction is a common orthopaedic procedure. We developed a novel, low dose computed tomography (LDCT) protocol to assess tunnel position post-operatively. The effective radiation dose of this protocol is <0.5mSv, which is significantly less than the 2mSv dose for a conventional CT protocol. The aim of this study was to assess the accuracy of the LDCT protocol for determining tunnel position. Methods Twenty-six patients who underwent primary ACL reconstruction were included in the study. A LDCT scan was performed six weeks post-operatively. Femoral and tibial tunnel positions were measured on three dimensional (3D) reconstructions using previously validated techniques. Measurements were performed independently by three observers at two time points, four weeks apart. Results There was excellent intra- and inter-rater reliability for all measurements using the images obtained from the LDCT protocol. Intra-class correlation coefficient (ICC) values were >0.9 for all measurements. Conclusions The LDCT protocol described in this study accurately demonstrates femoral and tibial tunnels post ACL reconstruction, while exposing the patient to a quarter of the radiation dose of a conventional CT. This protocol could be used by orthopaedic surgeons for routine post-operative imaging, in place of plain film radiographs.

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Radiological measurement of posterior tibial subluxation as a preoperative factor in choosing the type of implant in primary total knee arthroplasty

Jegierski,

Maciąg,

Żarnovsky

et al. 2024

Reumatologia

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IntroductionTotal knee arthroplasty (TKA) is the most effective treatment of late osteoarthritis (OA) and is considered among the most successful surgical procedures in general. However, about 20% of patients remain dissatisfied. An important aspect of TKA is the proper choice of implant type – posterior stabilized (PS) or cruciate retaining (CR). Both have their indications for use based on intraoperative functional examination, but no objective radiological criteria have yet been developed. The aim of this study was to investigate the relationship between the posterior subluxation of the tibia on preoperative radiograms and implant type used.Material and methodsA series of 52 patients undergoing TKA were included in the study. All patients were over 50 years old, had clinically and radiologically confirmed primary OA of grade IV on the Kellgren-Lawrence scale and were undergoing a primary total knee replacement (TKR) with a PS or CR design. Preoperative lateral radiographs were analysed retrospectively. The tibial translation ratio was calculated as a percentage of subluxation in the length of the tibial plateau.ResultsThere were no significant differences between implant types in regard to investigated parameters. However, there was a significant difference between the groups CR and PS in regard to age (68.5 [60.0–72.0] vs. 72.5 [68.0–75.0], <i>p</i> = 0.006).ConclusionsThis study revealed that preoperative tibial translation does not significantly correlate with the choice of implant type and so probably not with posterior cruciate ligament (PCL) function and efficiency either. Additionally, this study showed that PCL insufficiency is related to the age of the patients, because of the more frequent choice of the PS implant type for the surgery in older patients than in the case of the CR implant type.

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Dosages of ionizing radiation during limb diagnostic X-ray examinations

Cited by 3 publications

References 2 publications

Evaluation of a novel lower radiation computed tomography protocol for assessment of tunnel position post anterior cruciate ligament reconstruction

Evaluation of a novel lower radiation computed tomography protocol for assessment of tunnel position post anterior cruciate ligament reconstruction

Evaluation of a novel lower radiation computed tomography protocol for assessment of tunnel position post anterior cruciate ligament reconstruction

Radiological measurement of posterior tibial subluxation as a preoperative factor in choosing the type of implant in primary total knee arthroplasty

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