Postoperative mechanical alignment analysis of total knee replacement patients operated with 3d printed patient specific instruments: A prospective cohort study

Basit Öğe Kaydı
dc.authorid0000-0002-6768-959X
dc.contributor.authorGemalmaz, Halil Can
dc.contributor.authorSarıyılmaz, Kerim
dc.contributor.authorÖzkunt, Okan
dc.contributor.authorSungur, Mustafa
dc.contributor.authorKaya, İbrahim
dc.contributor.authorDikici, Fatih
dc.date.accessioned10.07.201910:49:13
dc.date.accessioned2019-07-10T19:37:32Z
dc.date.available10.07.201910:49:14
dc.date.available2019-07-10T19:37:32Z
dc.date.issued2019
dc.departmentİstanbul Medipol Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Ortopedi ve Travmatoloji Ana Bilim Dalı
dc.description.abstractObjective: Total knee replacement (TKR) is a surgical treatment for final stage gonarthrosis. The lifespan of the prosthetic implants used in TKR surgery is a major interest for the orthopaedic research community.Previously, proper implant alignment of the implants has been advocated for longevity of the TKR surgery. Recently, patient-specific (PSI) instruments have been proposed to improve the mechanical alignment of the TKR by permitting better implant positioning over conventional TKR surgery. The aim of this study is to compare the mechanical alignment results of patients operated with PSIs and conventional instruments. Methods: Two groups of 20 patients chosen in a quasi-random manner have been compared in this study. In the first group femoral distal and tibial osteotomies were made by a PSI which was produced by the patients’ computed tomography scans. All osteotomies in the control group were made with the TKR set's routine instruments by conventional means. Patients’ preoperative and postoperative mechanical femorotibal angles (mFTA), femoral coronal angles (FCA), tibial coronal angles (TCA) were measured and the number of outliers which showed more than 3° of malalignment were counted in both groups for comparison. Results: The average postoperative mFTA was found to be 2.09° for the PSI group and in was found to be 284° for the control which was not statistically significant. The comparison of postoperative FCA and TCA also did not show significant difference between the groups. The number of outliers showing more than 3° of malalignment per group were found to be 1 out of 20 (5%) for the PSI group and 7 out of 20 (35%) for the control which was statistically significant. Conclusion: In this study patient-specific instrumentation provided significantly better mechanical alignment compared to conventional TKR for the frequency of outlier cases with malalignment beyond 3°. PSI proved no significant difference when the groups were compared for mFTA, FCA and TCA. Our findings support that PSI may improve TKR alignment by improving the ratio of the outlier patients with marked malalignment. Level of Evidence: Level III, Therapeutic Study.
dc.identifier.citationGemalmaz, H. C., Sarıyılmaz, K., Özkunt, O., Sungur, M., Kaya, İ. ve Dikici, F. (2019). Postoperative mechanical alignment analysis of total knee replacement patients operated with 3d printed patient specific instruments: A prospective cohort study. Acta Orthopaedica et Traumatologica Turcica, 53(5), 323-328. https://dx.doi.org/10.1016/j.aott.2019.02.001
dc.identifier.doi10.1016/j.aott.2019.02.001
dc.identifier.endpage328
dc.identifier.issn1017-995X
dc.identifier.issue5
dc.identifier.scopusqualityQ2
dc.identifier.startpage323
dc.identifier.urihttps://hdl.handle.net/20.500.12511/1423
dc.identifier.urihttps://dx.doi.org/10.1016/j.aott.2019.02.001
dc.identifier.volume53
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherTurkish Association of Orthopaedics and Traumatology
dc.relation.ispartofActa Orthopaedica et Traumatologica Turcicaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectMechanical Alignment
dc.subjectPatient Matched Instruments
dc.subjectPatient Specific Instruments
dc.subjectTotal Knee Arthroplasty
dc.subjectTotal Knee Replacement
dc.titlePostoperative mechanical alignment analysis of total knee replacement patients operated with 3d printed patient specific instruments: A prospective cohort study
dc.typeArticle

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
Küçük Resim
İsim:
Özkunt, Okan.pdf
Boyut:
1.2 MB
Biçim:
Adobe Portable Document Format
Açıklama:
Tam Metin / Full Text
İndir

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu
Makale Koleksiyonu
PubMed İndeksli Yayınlar Koleksiyonu
TR-Dizin İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu