Six Commonly Used Postoperative Radiographic Alignment Parameters Do Not Predict Clinical Outcome Scores after Unrestricted Caliper-Verified Kinematically Aligned TKA

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dc.contributor.authorDhaliwal, Anand
dc.contributor.authorZamora, Tomas
dc.contributor.authorNedopil, Alexander J.
dc.contributor.authorHowell, Stephen M.
dc.contributor.authorHull, Maury L.
dc.date.accessioned2025-01-20T21:02:30Z
dc.date.available2025-01-20T21:02:30Z
dc.date.issued2022
dc.description.abstractBackground: Unrestricted caliper-verified kinematically aligned (KA) TKA restores patient's prearthritic coronal and sagittal alignments, which have a wide range containing outliers that concern the surgeon practicing mechanical alignment (MA). Therefore, knowing which radiographic parameters are associated with dissatisfaction could help a surgeon decide whether to rely on them as criteria for revising an unhappy patient with a primary KA TKA using MA principles. Hence, we determined whether the femoral mechanical angle (FMA), hip-knee-ankle angle (HKAA), tibial mechanical angle (TMA), tibial slope angle (TSA), and the indicators of patellofemoral tracking, including patella tilt angle (PTA) and the lateral undercoverage of the trochlear resection (LUCTR), are associated with clinical outcome scores. Methods: Forty-three patients with a CT scan and skyline radiograph after a KA TKA with PCL retention and medial stabilized design were analyzed. Linear regression determined the strength of the association between the FMA, HKA angle, PTS, PTA, and LUCTR and the forgotten joint score (FJS), Oxford knee score (OKS), and KOOS Jr score obtained at a mean of 23 months. Results: There was no correlation between the FMA (range 2 degrees varus to -10 degrees valgus), HKAA (range 10 degrees varus to -9 degrees valgus), TMA (range 10 degrees varus to -0 degrees valgus), TSA (range 14 degrees posterior to -4 degrees anterior), PTA (range, -10 degrees medial to 14 degrees lateral), and the LUCTR resection (range 2 to 9 mm) and the FJS (median 83), the OKS (median 44), and the KOOS Jr (median 85) (r = 0.000 to 0.079). Conclusions: Surgeons should be cautious about using postoperative FMA, HKAA, TMA, TSA, PTA, and LUCTR values within the present study's reported ranges to explain success and dissatisfaction after KA TKA.
dc.fuente.origenWOS
dc.identifier.doi10.3390/jpm12091468
dc.identifier.eissn2075-4426
dc.identifier.urihttps://doi.org/10.3390/jpm12091468
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93046
dc.identifier.wosidWOS:000856652300001
dc.issue.numero9
dc.language.isoen
dc.revistaJournal of personalized medicine
dc.rightsacceso restringido
dc.subjecttotal knee arthroplasty
dc.subjectkinematic alignment
dc.subjectreoperation
dc.subjectrevision
dc.subjectphenotype
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleSix Commonly Used Postoperative Radiographic Alignment Parameters Do Not Predict Clinical Outcome Scores after Unrestricted Caliper-Verified Kinematically Aligned TKA
dc.typeartículo
dc.volumen12
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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