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Conference Paper: A Trial Comparing Two Patient-specific Instrumentations in Total Knee Arthroplasty

TitleA Trial Comparing Two Patient-specific Instrumentations in Total Knee Arthroplasty
Authors
Issue Date2013
PublisherHong Kong Academy of Medicine Press.
Citation
The 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA), Hong Kong, China, 23-24 November 2013. In the Abstracts of the 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA), 2013, p. 34, abstract no. 4.2 How to Cite?
AbstractIntroduction: Surgeons may use patient-specific (PS) instrumentations / templates to achieve accurate bone cuts in total knee arthroplasty (TKA). We compared the tourniquet time, operation times, postoperative lower limb alignments, and individual components’ positioning in 2 different PS designs. Materials and Methods: A total of 60 knees in 55 patients (38 women, 17 men) were recruited. A total of 30 TKAs were performed using magnetic resonance imaging–based patient-specific instrument (PSI) system and 30 using computed tomography–based TruMatch (TMT) system. There was no difference in terms of the age, preoperative deformity, and diagnoses between the 2 groups, but there were more male patients in the PSI group (p = 0.01). Postoperative standing long films of the entire lower limbs were taken. Results: The mean (± standard deviation) tourniquet time was 49.1 ± 15.3 minutes for PSI and 42.9 ± 9.6 minutes for TMT groups (p = 0.07). The mean operation time was 73.7 ± 16.0 minutes for PSI group and 69.8 ± 17.9 minutes for TMT group (p = 0.38). The TMT group had significantly more outliers in tibial posterior slope (p = 0.025). There was no difference in the number of outliers in other parameters including femoral component varus, femoral component flexion, tibial component varus, and lower limb mechanical axis alignment between PSI and TMT groups. Discussion: The PSI is a new technique in TKA. The PSI and TMT systems had comparable results in the surgical times and component positioning. The PSI system may have advantages in providing more accurate tibial component posterior slope.
DescriptionConference Theme: Defying the Aging Spine
Concurrent Free Papers 4: Hips and Knees I
Persistent Identifierhttp://hdl.handle.net/10722/204326

 

DC FieldValueLanguage
dc.contributor.authorYan, CHen_US
dc.contributor.authorChiu, PKYen_US
dc.contributor.authorNg, FYen_US
dc.contributor.authorChan, PKen_US
dc.contributor.authorFu, CHHen_US
dc.contributor.authorFang, CXen_US
dc.date.accessioned2014-09-19T22:41:13Z-
dc.date.available2014-09-19T22:41:13Z-
dc.date.issued2013en_US
dc.identifier.citationThe 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA), Hong Kong, China, 23-24 November 2013. In the Abstracts of the 33rd Annual Congress of the Hong Kong Orthopaedic Association (HKOA), 2013, p. 34, abstract no. 4.2en_US
dc.identifier.urihttp://hdl.handle.net/10722/204326-
dc.descriptionConference Theme: Defying the Aging Spine-
dc.descriptionConcurrent Free Papers 4: Hips and Knees I-
dc.description.abstractIntroduction: Surgeons may use patient-specific (PS) instrumentations / templates to achieve accurate bone cuts in total knee arthroplasty (TKA). We compared the tourniquet time, operation times, postoperative lower limb alignments, and individual components’ positioning in 2 different PS designs. Materials and Methods: A total of 60 knees in 55 patients (38 women, 17 men) were recruited. A total of 30 TKAs were performed using magnetic resonance imaging–based patient-specific instrument (PSI) system and 30 using computed tomography–based TruMatch (TMT) system. There was no difference in terms of the age, preoperative deformity, and diagnoses between the 2 groups, but there were more male patients in the PSI group (p = 0.01). Postoperative standing long films of the entire lower limbs were taken. Results: The mean (± standard deviation) tourniquet time was 49.1 ± 15.3 minutes for PSI and 42.9 ± 9.6 minutes for TMT groups (p = 0.07). The mean operation time was 73.7 ± 16.0 minutes for PSI group and 69.8 ± 17.9 minutes for TMT group (p = 0.38). The TMT group had significantly more outliers in tibial posterior slope (p = 0.025). There was no difference in the number of outliers in other parameters including femoral component varus, femoral component flexion, tibial component varus, and lower limb mechanical axis alignment between PSI and TMT groups. Discussion: The PSI is a new technique in TKA. The PSI and TMT systems had comparable results in the surgical times and component positioning. The PSI system may have advantages in providing more accurate tibial component posterior slope.-
dc.languageengen_US
dc.publisherHong Kong Academy of Medicine Press.-
dc.relation.ispartofAnnual Congress of the Hong Kong Orthopaedic Association (HKOA)en_US
dc.rightsAnnual Congress of the Hong Kong Orthopaedic Association (HKOA). Copyright © Hong Kong Academy of Medicine Press.-
dc.titleA Trial Comparing Two Patient-specific Instrumentations in Total Knee Arthroplastyen_US
dc.typeConference_Paperen_US
dc.identifier.emailYan, CH: yanchoi@hku.hken_US
dc.identifier.emailChiu, PKY: pkychiu@hkucc.hku.hken_US
dc.identifier.emailNg, FY: fyng@hkucc.hku.hken_US
dc.identifier.emailChan, PK: cpk464@hku.hken_US
dc.identifier.emailFu, CHH: drhfu@hku.hken_US
dc.identifier.emailFang, CX: cfang@hku.hken_US
dc.identifier.authorityYan, CH=rp00303en_US
dc.identifier.authorityChiu, PKY=rp00379en_US
dc.identifier.hkuros235764en_US
dc.identifier.hkuros240316-
dc.identifier.spage34, abstract no. 4.2en_US
dc.identifier.epage34, abstract no. 4.2en_US
dc.publisher.placeHong Kong, China-

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