Computed 3D Motion Analysis of the Hip: Comparison of CT- And MRI-based Data

Goronzy, Jens; Blum, Sophia; Danowski, D.; Plodeck, Verena; Thielemann, Falk; Hartmann, A.; Günther, Klaus‐Peter

doi:10.1093/jhps/hnw030.046

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The extra costs and radiation exposure due to pre-operative CT scans is therefore debatable if it is not improving pre-operative sensitivity and specificity of the diagnostics. The radiation exposure can be bypassed by the use of MRI [36].…”

Section: Resultsmentioning

confidence: 99%

Diagnostic sensitivity and specificity of dynamic three-dimensional CT analysis in detection of cam and pincer type femoroacetabular impingement

Röling¹,

Mathijssen²,

Bloem³

2020

BMC Musculoskelet Disord

View full text Add to dashboard Cite

Background: Cam and pincer-type morphologies can cause femoroacetabular impingement syndrome (FAI) and can be measured on plain radiographs using the alpha angle and the center edge angle. As an addition to plain radiographs and to assess femoroacetabular impingement, it is possible to visualize the interplay of the acetabular and femoral morphology by means of dynamic three-dimensional simulation of hip joint. Therefore, the objective of this study is to compare alpha angles and center edge angles on plain radiographs with the dynamic computerized tomography (CT) analysis in patients with complaints of femoroacetabular impingement. Methods: All patients from our prospective cohort from 2012 to 2015 who underwent radiographs and a dynamic CT analysis for FAI were selected. Cam type morphologies were measured with the alpha angle and pincer type morphologies with lateral center-edge angle on radiographs and with CT analysis. The dynamic CT analysis also calculated position and size of impingement of femur and acetabulum. Intra-operative assessment was used to confirm impingement. Sensitivity, specificity and predictive values were calculated compared with respect to the intra-operative assessment. Results: A total of 127 patients were included. 90 cam morphologies and 45 pincer morphologies were identified intra-operatively. The sensitivity and specificity for cam morphology measured with radiographs was 84 and 72% compared to 90 and 43% with three dimensional dynamic analyses. The sensitivity and specificity for pincer morphology measured with radiographs was 82 and 39% compared to 84 and 51% with three dimensional dynamic analyses. Conclusions: Diagnostic accuracy is comparable in three-dimensional dynamic analysis of CT scans and radiographs representing FAI caused by cam or pincer type morphology.

show abstract

Section: Resultsmentioning

confidence: 99%

Diagnostic sensitivity and specificity of dynamic three-dimensional CT analysis in detection of cam and pincer type femoroacetabular impingement

Röling¹,

Mathijssen²,

Bloem³

2020

BMC Musculoskelet Disord

View full text Add to dashboard Cite

show abstract

“…However, femoral head asphericity, and pelvic tilt abnormalities can influence gait function, making assessments less accurate. Dynamic 3D motion analysis, where available, has recently helped mitigate some inaccuracies by evaluating the patient in three planes of motion, using computer technology to analyse the data objectively [ 46 ].…”

Section: Investigationsmentioning

confidence: 99%

Best practice guidelines for clinical and radiological assessment of patients with femoroacetabular impingement. Results from the ISHA International Delphi Consensus Project—Phase 2

Radha,

Hutt,

Lall

et al. 2023

Journal of Hip Preservation Surgery

View full text Add to dashboard Cite

In 2018, the International Society for Hip Preservation Surgery (ISHA) initiated a series of Delphi consensus studies to identify the global hip preservation community’s current opinion on best practices for different facets of hip preservation surgery. Arthroscopic procedures to treat hip pathologies, such as femoroacetabular impingement syndrome (FAIS) are now established in mainstream orthopaedic practice. This study establishes recommendations for the investigation of patients with suspected FAIS. The investigation has focused on the three phases of the diagnostic process—patient history, physical examination and special investigations. Our expert panel consisted of 174 international orthopaedic surgeons with expertise in hip preservation surgery, thereby making recommendations generalisable across the globe. After three rounds of survey and analysis with 174 participants per round, our study achieved consensus at a minimum agreement threshold of 80.0% on 55 statements pertaining to the assessment of patients with FAIS. We encourage our junior and senior hip arthroscopy colleagues internationally to consider these statements both to standardize the clinical and radiological assessment of patients with FAIS and to aid in the design of future research.

show abstract

Computed 3D Motion Analysis of the Hip: Comparison of CT- And MRI-based Data

Cited by 2 publications

References 0 publications

Diagnostic sensitivity and specificity of dynamic three-dimensional CT analysis in detection of cam and pincer type femoroacetabular impingement

Diagnostic sensitivity and specificity of dynamic three-dimensional CT analysis in detection of cam and pincer type femoroacetabular impingement

Best practice guidelines for clinical and radiological assessment of patients with femoroacetabular impingement. Results from the ISHA International Delphi Consensus Project—Phase 2

Contact Info

Product

Resources

About