Trochlear Thickness and Its Effect on the Outcomes of Total Knee Arthroplasty
NCT ID: NCT06555055
Last Updated: 2024-08-15
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
87 participants
OBSERVATIONAL
2022-09-30
2024-07-01
Brief Summary
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Numerous biomechanical studies suggest that patellofemoral tracking is not always restored to physiological values, because the prosthetic trochlea may differ from the native trochlea. no study has been con-ducted to investigate the thickness of the trochlear groove and its effect on the outcome of Total knee replacement (TKR), So many people has different measurements of trochlear thickness which may affect Patellofemoral joint (PFJ) so knowing of native trochlear thickness in patients with KNEE Osteoarthritis (OA) can affect the outcomes of total knee arthroplasty.
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Detailed Description
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Numerous biomechanical studies suggest that patellofemoral tracking is not always restored to physiological values, because the prosthetic trochlea may differ from the native trochlea.
Theoretically decreasing of contact area distance of trochlea might increase the contact pressure in the patellofemoral joint. The increased contact pressure will elevate the stress in the subchondral bone of the patellofemoral joint, which is hypothesized to be a cause of patellofemoral pain.
A mechanical experiment was performed in an attempt to analyze the influence of thickening of the patella on the knee extension movement. The measurement show that anterior advancement of the extensor apparatus at the level of the patella gives a mechanical advantage, enabling the quadriceps to extend the knee with the use of less force. so increase thickness of patella affects the quadriceps function but no study has been shown the effect of trochlear thickness on quadriceps or patellofemoral joint.
Nonetheless, no study has been con-ducted to investigate the thickness of the trochlear groove and its effect on the outcome of TKR, So many people has different measurements of trochlear thickness which may affect PFJ so knowing of native trochlear thickness in patients with KNEE OA can affect the outcomes of total knee arthroplasty.
Preoperative and postoperative radiography (CT scan) can provide an adequate measurement of trochlear thickness which will help in understanding more about PFJ and its effect in the total knee replacement.
Conditions
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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trochlear thickness change
Radiological Assessment of trochlear thickness of PFJ in primary TKR by preoperative and postoperative CT scan. and observing Effects of Ct Different measures changes in trochlear thickness on short term TKR outcomes
CT trochlear thickness change
Preoperative and postoperative CT scan measuring trochlear thickness of PFJ was defined as distance from deepest part of trochlea and line tangential to the anterior aspect of the femoral cortex. It was assessed on the sagittal cuts.
CT images will be viewed using Sante DICOM viewer version 5.4.2 and image fusion will be done using Overlay multiple image software.
Two observers will measure the angles and the intraobserver and interobserver reliabilities will be assessed for consistency by the intraclass correlation coefficient (ICC) and reliability coefficient using the SPSS software
Interventions
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CT trochlear thickness change
Preoperative and postoperative CT scan measuring trochlear thickness of PFJ was defined as distance from deepest part of trochlea and line tangential to the anterior aspect of the femoral cortex. It was assessed on the sagittal cuts.
CT images will be viewed using Sante DICOM viewer version 5.4.2 and image fusion will be done using Overlay multiple image software.
Two observers will measure the angles and the intraobserver and interobserver reliabilities will be assessed for consistency by the intraclass correlation coefficient (ICC) and reliability coefficient using the SPSS software
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Previous osteotomy around the knee
* Post traumatic knee arthritis
* Inflammatory knee arthritis
40 Years
80 Years
ALL
No
Sponsors
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Ain Shams University
OTHER
Ibrahim barsoum
OTHER
Responsible Party
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Ibrahim barsoum
Ass. lecturer.
Principal Investigators
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Ibrahim B Anis, MS
Role: PRINCIPAL_INVESTIGATOR
Ain Shams University
Wael S Abd El Mageed, MD
Role: STUDY_DIRECTOR
Ain Shams University
Sherif M El Sayed, MD
Role: STUDY_DIRECTOR
Ain Shams University
Zeiad M Zakaria, MD
Role: STUDY_DIRECTOR
Ain Shams University
Mohmed E Awad, MD
Role: STUDY_DIRECTOR
Ain Shams University
Locations
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Ain Sahms University
Cairo, Abbasia, Egypt
Countries
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References
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Ranawat CS, Flynn WF Jr, Saddler S, Hansraj KK, Maynard MJ. Long-term results of the total condylar knee arthroplasty. A 15-year survivorship study. Clin Orthop Relat Res. 1993 Jan;(286):94-102.
Healy WL, Wasilewski SA, Takei R, Oberlander M. Patellofemoral complications following total knee arthroplasty. Correlation with implant design and patient risk factors. J Arthroplasty. 1995 Apr;10(2):197-201. doi: 10.1016/s0883-5403(05)80127-5.
Dejour H, Walch G, Neyret P, Adeleine P. [Dysplasia of the femoral trochlea]. Rev Chir Orthop Reparatrice Appar Mot. 1990;76(1):45-54. French.
Other Identifiers
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Trochlear thickness in TKA
Identifier Type: -
Identifier Source: org_study_id
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