TY - JOUR T1 - Is minimally invasive surgery-total knee arthroplasty truly less invasive than standard total knee arthroplasty? A quantitative evaluation. AU - Tsuji,Shigeyoshi, AU - Tomita,Tetsuya, AU - Fujii,Masakazu, AU - Laskin,Richard S, AU - Yoshikawa,Hideki, AU - Sugamoto,Kazuomi, Y1 - 2009/08/12/ PY - 2008/01/10/received PY - 2009/06/07/accepted PY - 2009/8/15/entrez PY - 2009/8/15/pubmed PY - 2010/12/17/medline SP - 970 EP - 6 JF - The Journal of arthroplasty JO - J Arthroplasty VL - 25 IS - 6 N2 - With recent technical advancements, the number of operative manipulations in the knee joint by minimally invasive surgery-total knee arthroplasty (MIS-TKA) is now considered to be the same as that using standard TKA (S-TKA). The question still remains, however, if MIS-TKA improves recovery compared to S-TKA. We compared MIS-TKA and S-TKA patients' physical activity as measured by an accelerometer. Physical activity expressed as cumulative acceleration was significantly higher in the MIS-TKA than in the S-TKA group on postoperative days (POD1, 2, 3, 4, 5, 10, 11) (P < .05). The recovery time, defined as the number of days required to achieve cumulative acceleration of 80% of the preoperative level, was significantly shorter (P < .05) in the MIS-TKA (3.0 +/- 3.3 days) group than in the S-TKA (7.0 +/- 3.5 days) group. Minimally invasive surgery-total knee arthroplasty appears to allow an earlier recovery after the operation than S-TKA. Less invasion to muscle during the surgery appears to contribute to shorter convalescence. SN - 1532-8406 UR - https://www.unboundmedicine.com/medline/citation/19679439/Is_minimally_invasive_surgery_total_knee_arthroplasty_truly_less_invasive_than_standard_total_knee_arthroplasty_A_quantitative_evaluation_ DB - PRIME DP - Unbound Medicine ER -