Medacta Corporate

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MyKnee MIS and muscle sparing surgery:
minimally invasive with the maximal accuracy and efficiency!

In daily practice, every surgeon faces the increasing demand for excellent and reproducible knee arthroplasty outcomes. The mini-subvastus muscle sparing approach used in combination with the MyKnee MIS, minimally invasive patient-matched cutting blocks, facilitates an exceptional service for the patient.
The reduced size, rounded edges and anatomical shape allow the MyKnee MIS cutting blocks to flawlessly adapt to minimally invasive approaches. The soft tissues are respected in the easiest way with the added value of an increased accuracy and efficiency.

MYKNEE MIS Mini-Subvastuts Muscle Sparing Surgery in Total Knee Replacement
The easiest way to respect soft tissues with the added value of an increased accuracy and efficiciency


Published papers show how muscle sparing knee Surgery (MSS) minimizes surgical trauma and reduce knee pain, providing earlier functional recovery:

Reduction of hospital stay (17% - 43% time less) [1,2]
Earlier functional recovery (110° ROM 6 weeks earlier) [2]
Shorter rehabilitation [3]
Less pain (16% less at discharge) [2]
Less medication needed (12% less at 2 weeks) [4]

Different MSS approaches are available for TKR., but only the mini subvastus provides a specific set of potential benefits:

No muscle cut
No patella eversion
No joint dislocation
Reduced scar
Excellent exposure
Versatile approach

Moreover, patients can benefits of mini-subvastus approach not only in the  short term:

“At 1 year, the quadriceps strength of the mini-Subvastus TKA knee was equal to that of the uninvolved side, whereas MMP [the medial parapatellar]
TKA was 24% weaker than the uninvolved side.” [5]


 

QUADRICEPS STRENTH COMPARED TO NON-OP LEG AT 1 YEAR

Adapted from Schroer et alt. [5]
 

M.O.R.E. EDUCATION KNEE PROGRAM

[1] Schroer et al. Mini-subvastus approach for total knee arthroplasty. J of Arthroplasty. 2008 Jan; 23(1): 19-25.
[2] McAllister et al. of minimally invasive surgical techniques on early range of motion after primary totalMcAllister et al. The impact of minimally invasive surgical techniques on early range of motion after primary total knee arthroplasty. J of Arthroplasty. 2008 Jan; 23(1): 10-18.
[3] Bonutti et al. Minimally invasive total knee arthroplasty. JBJS Am. 2004; 86: 26-32.
[4] King et al. Minimally invasive total knee arthroplasty compared with traditional total knee arthroplasty. Assessment of the learning curve and the postoperative recuperative period. JBJS Am. 2007 Jul; 89(7): 1497-503.
[5] Schroer et alt. Isokinetic Strength Testing of Minimally Invasive Total Knee Arthroplasty Recovery.  Journal of Arthroplasty, 2010 Feb; 25(2); 274-279