The Effect of Sagittal Knee Deformity on Preoperative Measurement of Coronal Mechanical Alignment during Total Knee Arthroplasty

Gautam M Shetty; Arun Mullaji; Ahmed Adel Khalifa; Abhik Ray; Vivek Nikumbha

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자료유형: 학술저널

저자정보: Gautam M Shetty (Breach Candy Hospital & Mullaji Knee Clinic) Arun Mullaji (Breach Candy Hospital & Mullaji Knee Clinic) Ahmed Adel Khalifa (Breach Candy Hospital & Mullaji Knee Clinic) Abhik Ray (Breach Candy Hospital & Mullaji Knee Clinic) Vivek Nikumbha (Breach Candy Hospital & Mullaji Knee Clinic)

저널정보: 대한슬관절학회 Knee Surgery and Related Research Knee Surgery and Related Research 제29권 제2호

발행연도: 2017.6

수록면: 110 - 114 (5page)

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purpose: The purpose of this prospective study was to determine correlation between coronal mechanical alignment measured on preoperative standing fulllength radiographs and navigation during total knee arthroplasty (TKA) in the presence of an associated sagittal deformity (hyperextension and flexion deformity).Materials and Methods: Coronal mechanical alignment measured on preoperative, standing, fulllength, hiptoankle anteroposterior radiographs was compared with intraoperative measurements recorded with computer navigation in 200 primary navigated TKAs.results: The mean difference in mechanical alignment between the two techniques was significantly greater (p=0.001) in patients with an associated flexion deformity >10° when compared to knees with associated flexion deformity ≤10°; 48% of knees with a flexion deformity >10° had a difference of ≥3° between the fulllength radiograph and navigation alignment measurements. There was a strong correlation between the radiographic and navigation measurement techniques.conclusions: The mean difference in coronal mechanical alignment between the two techniques was significantly higher in patients with an associated flexion deformity >10°. Hence, surgeons should take caution when relying on preoperative fulllength radiographs for determining coronal mechanical alignment in patients with an associated flexion deformity >10° where using navigation may be more reliable.

#Knee #arthroplasty #computer-assisted surgery #Sagittal deformity #alignment

참고문헌 (12)

참고문헌 신청

Cheng T / 2012 / Does computer-assisted surgery improve postoperative leg alignment and implant positioning following total knee arthroplasty? A metaanalysis of randomized controlled trials? / Knee Surg Sports Traumatol Arthrosc 20:1307~1322

Mason JB / 2007 / Metaanalysis of alignment outcomes in computer-assisted total knee arthroplasty surgery / J Arthroplasty 22:1097~1106

Mullaji A / 2007 / Comparison of limb and component alignment using computerassisted navigation versus image intensifier-guided conventional total knee arthroplasty : a prospective, randomized, single-surgeon study of 467 knees / J Arthroplasty 22:953~959

Willcox NM / 2012 / A comparison of radiological and computer navigation measurements of lower limb coronal alignment before and after total knee replacement / J Bone Joint Surg Br 94:1234~1240

Su EP / 2012 / Fixed flexion deformity and total knee arthroplasty / J Bone Joint Surg Br 94(11 Suppl A):112~115

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