Midterm outcomes of high-flexion total knee arthroplasty on Japanese lifestyle

Objective & Hypothesis:Objective: To evaluate the clinical outcomes after total knee arthroplasty (TKA) using the Genesis IIposterior stabilized prosthesis with a high-flex insert during the mid-term follow-up and to assess itseffect on the Japanese lifestyle.Materials and methods: Fifty-three consecutive patients (8 men and 45 women) underwent primary TKA.The mean follow-up time was 76 months (5e9 years).

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Key Findings & Data:The mean preoperativeflexion range improved from 112to 123postoperatively (p< 0.05).Additionally, ourŞndings showed that 39% of patients enjoyed a floor-sitting life preoperatively, but only30% of patients enjoyedfloor-sitting life postoperatively.Conclusion: The postoperative range of knee motion and JOA knee score improved after TKA using theGenesis II posterior stabilized prosthesis with a high-flex insert, but the number of patients who enjoyedfloor-sitting life decreased from 39% to 30% because of feelings of fear and discomfort.Level of Evidence: Level IV, Therapeutic study© 2016 Turkish Association of Orthopaedics and Traumatology.

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Conclusion & Impact:This isan open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

🔬Design:Research Article

📍Scope:2016 Verileri

⚙️Variables:Domain Parameters

Abstract

Objective: To evaluate the clinical outcomes after total knee arthroplasty (TKA) using the Genesis IIposterior stabilized prosthesis with a high-flex insert during the mid-term follow-up and to assess itseffect on the Japanese lifestyle.Materials and methods: Fifty-three consecutive patients (8 men and 45 women) underwent primary TKA.The mean follow-up time was 76 months (5e9 years). Clinical results were assessed with the JapaneseOrthopedic Association osteoarthritis knee rating score (JOA knee score), range of motion, and lifestylechanges.Results: The postoperative JOA knee score improved signiŞcantly compared to the preoperative JOA kneescore. The mean preoperativeflexion range improved from 112to 123postoperatively (p< 0.05).Additionally, ourŞndings showed that 39% of patients enjoyed a floor-sitting life preoperatively, but only30% of patients enjoyedfloor-sitting life postoperatively.Conclusion: The postoperative range of knee motion and JOA knee score improved after TKA using theGenesis II posterior stabilized prosthesis with a high-flex insert, but the number of patients who enjoyedfloor-sitting life decreased from 39% to 30% because of feelings of fear and discomfort.Level of Evidence: Level IV, Therapeutic study© 2016 Turkish Association of Orthopaedics and Traumatology. Publishing services by Elsevier B.V. This isan open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Cite This Article

OHNO, H., MURATA, M., OZU, S., MATSUOKA, N., KAWAMURA, H., IİDA, H. (2016). Midterm outcomes of high-flexion total knee arthroplasty on Japanese lifestyle. Acta Orthopaedica et Traumatologica Turcica, Cilt: 50 - Sayı: 5, 527–532. https://ajindex.com/articles/207844

References (1)

Asano T, Takagi H, Takatsuka K, Nakamura S. TKA kinematics in deep knee flexion for Japanese floor life. J Jpn Knee Soc. 2007;32:1e4. Laskin RS. The effect of a high-flex implant on postoperative flexion after pri- mary total knee arthroplasty. Orthopedics. 2007;30:86e88. The Japanese Orthopaedic Association. Japanese Knee Society: Assessment Criteria for Knee Diseases and Treatments. Tokyo: Kanehara; 1994. Ewald FC. The Knee Society total knee arthroplasty roentgenographic evalua- tion and scoring system. Clin Orthop Relat Res. 1989;248:9e12. Thomsen MG, Husted H, Otte KS, Holm G, Troelsen A. Do patients care about higherflexion in total knee arthroplasty? A randomized, controlled, double- blinded trial. BMC Musculoskelet Disord. 2012;14:127. Kennedy JC, Alexander IJ, Hayes KC. Nerve supply of the human knee and its functional importance. Am J Sports Med. 1982;10:329e335. Incavo SJ, Beynnon BD, Johnson CC, Churchill DL. Knee kinematics in genesis total knee arthroplasty. A comparison of different tibial designs with and without posterior cruciate substitution in cadaveric specimens. Am J Knee Surg.;10:209e215. Victor J, Mueller JK, Komistek RD, Sharma A, Nadaud MC, Bellemans J. In vivo kinematics after a cruciate-substituting TKA. Clin Orthop Relat Res. 2010;468: e814. Mauerhan DR. Fracture of the polyethylene tibial post in a posterior cruciate- substituting total knee arthroplasty mimicking patellar clunk syndrome: a report of 5 cases. J Arthroplasty. 2003;18:942e945. Puloski SK, McCalden RW, MacDonald SJ, Rorabeck CH, Bourne RB. Tibial post wear in posterior stabilized total knee arthroplasty. An unrecognized source of polyethylene debris. J Bone Jt Surg Am. 2001;83-A:390e397. Laskin RS, Davis J. Total knee replacement using the Genesis II prosthesis: a 5- year follow up study of theŞrst 100 consecutive cases. Knee. 2005;12: e167. Bourne RB, McCalden RW, MacDonald SJ, Mokete L, Guerin J. Influence of pa- tient factors on TKA outcomes at 5 to 11 years followup. Clin Orthop Relat Res.;464:27e31.