Coronal femoral TKA position significantly influences in vivo patellar loading in unresurfaced patellae after primary total knee arthroplasty

Slevin, Omer; Schmid, Florian; Schiapparelli, Filippo-Franco; Rasch, Helmut; Amsler, Felix; Hirschmann, Michael T.

doi:10.1007/s00167-017-4627-2

Cited by 46 publications

(54 citation statements)

References 32 publications

(51 reference statements)

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“…The second important finding of the present study was that the factorial analysis proved a clinical and radiological significant correlation among regions belonging to the same knee compartment. Regions belonging to the same knee compartment are in a close biomechanical relation with each other's and consequently, the correlations seen between the rmBTU scores inside the same knee compartment are in accordance with the actual literature …”

Section: Discussionsupporting

confidence: 88%

“…Single‐photon emission computed tomography together with computed tomography (SPECT/CT) is increasingly gaining importance for assessment of bony pathologies including cartilage lesions and osteoarthritis (OA) of the lower extremity . The first line imaging for knee OA still is standardized weight‐bearing radiographs (anteroposterior, lateral, and patellar sunrise view).…”

mentioning

confidence: 99%

“…More recently SPECT/CT has been used in several studies dealing with cartilage lesions and OA . It is also a valuable complement to radiographs and MRI in cases of OA and painful total knee and hip arthroplasty …”

mentioning

confidence: 99%

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Good correlation between bone tracer uptake in SPECT/CT and intraoperative findings of chondral lesions graded with the ICRS scoring

Ammann

Schiapparelli

Moser

et al. 2018

Journal Orthopaedic Research

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The question if bone tracer uptake in SPECT/CT reflects the intraoperative cartilage status of the knee is still unanswered. In this study, thirty-three consecutive patients (male:female ¼ 11:22; mean age AE standard deviation 61 AE 15) with bi-or tri-compartmental knee osteoarthritis who underwent SPECT/CT before total knee arthroplasty (TKA) were collected. The knee was graded in eleven different anatomical regions. In each region, the maximal relative bone tracer uptake (mrBTU) was measured twice by two observers with a six weeks interval. The intraclass correlation coefficients (ICC) showed excellent correlations and mean values were used. Intraoperatively every region was assessed with the macroscopic International Cartilage Repair Society (ICRS) scoring. A factorial analysis and a non-parametrical Spearman's correlation were calculated among the 11 knee regions on both mrBTU and ICRS scores and significant correlations were seen between regions belonging to the same knee compartment (p < 0.05). A non-parametrical Spearman's correlation was also performed to investigate the correlation between rmBTU in SPECT/CT and intraoperative ICRS cartilage grading. Significant correlations were seen on the medial compartment, on the proximal femoral trochlea and on the medial patellar facet (p < 0.05). A significant correlation between SPECT/CT and intraoperative findings was so demonstrated in several regions. The low accuracy of the macroscopic ICRS scoring system on grade I-II lesions could have affected the missing correlations on the lateral compartment since the selected presented mainly a varus gonarthrosis. The use of an objective measure as the rmBTU could overcome the limit of the subjectivity of MRI findings in early osteoarthritis. ß

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Section: Discussionsupporting

confidence: 88%

mentioning

confidence: 99%

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Good correlation between bone tracer uptake in SPECT/CT and intraoperative findings of chondral lesions graded with the ICRS scoring

Ammann

Schiapparelli

Moser

et al. 2018

Journal Orthopaedic Research

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“…Slevin et al 19 also reported on the effects of tibial alignment on patellar stress in their study. They found no correlation between the bone tracer uptake in the patella and the TTTG distance.…”

Section: Implant Factorsmentioning

confidence: 85%

Patellar tracking in primary total knee arthroplasty

Donell

2018

EFORT Open Reviews

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This is a review of the recent literature of the various factors that affect patellar tracking following total knee arthroplasty (TKA).Patellar tracking principally depends on the pre-existing patellar tracking and the rotational alignment of the femoral and tibial implants, but the detailed movements depend on the patellar shape. The latter means that the patellar kinematics of any implanted TKA does not return to normal.Laboratory cadaveric studies use normal knees and non-activity-based testing conditions and so may not translate into clinical findings.The recent literature has not added anything significant to change established clinical practice in achieving satisfactory patellar tracking following TKA.Cite this article: EFORT Open Rev 2018;3:106-113. DOI: 10.1302/2058-5241.3.170036.

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“…Ein CT ist zum einen zur Bestimmung der Komponentenrotation hilfreich [6] Unter Verwendung spezieller Metallartefaktunterdrückung (z. B. i-MAR) können auch Lockerungssäume und Osteolysen gut dargestellt werden.…”

Section: Computertomografie (2-d 3-d)unclassified

Revisionsendoprothetik des Kniegelenks

Kremer¹,

Gramlich²,

Hoffmann³

2020

Z Orthop Unfall

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ZusammenfassungDie Kombination aus steigender Lebenserwartung, Zunahme der Risikofaktoren für eine Gonarthrose gepaart mit hohem funktionellem Anspruch bis ins hohe Lebensalter führt zu einer Zunahme der Implantationszahlen primärer Knieendoprothesen. Folglich nimmt auch die Häufigkeit von Revisionseingriffen drastisch zu. Klare Konzepte sind notwendig, um gute Ergebnisse zu erzielen. Dieser Artikel gibt einen Überblick über die aktuellen Strategien der Revisionsendoprothetik des Kniegelenks.

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Coronal femoral TKA position significantly influences in vivo patellar loading in unresurfaced patellae after primary total knee arthroplasty

Abstract: Diagnostic study, Level II.

Cited by 46 publications

References 32 publications

Good correlation between bone tracer uptake in SPECT/CT and intraoperative findings of chondral lesions graded with the ICRS scoring

Good correlation between bone tracer uptake in SPECT/CT and intraoperative findings of chondral lesions graded with the ICRS scoring

Patellar tracking in primary total knee arthroplasty

Revisionsendoprothetik des Kniegelenks

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