New Instrumentation Reduces Operative Time in Medial Unicompartmental Knee Arthroplasty Using the Oxford Mobile Bearing Design

Redesigned instrumentation has become available for implantation of the Oxford Mobile Bearing Medial unicompartmental knee arthroplasty. To assess the benefit of these changes, we compared operative time of 200 Phase III and 176 Microplasty UKA done 2008-2011. An average time savings of 8.6 minutes was seen with the Microplasty design.  Additionally, the standard deviation in operative times, minimum and maximum operatives were lower in knees in which Microplasty instrumentation was utilized.  A 15% savings in operative time was seen with the new Microplasty instrumentation.

[1]  J. Bae,et al.  Oxford phase 3 unicompartmental knee replacement in Korean patients. , 2012, The Journal of bone and joint surgery. British volume.

[2]  P. W. Kristensen,et al.  Up to 10-year follow-up of the Oxford medial partial knee arthroplasty--695 cases from a single institution. , 2013, The Journal of arthroplasty.

[3]  E. Losina,et al.  Good accuracy of the Phase III Oxford Mobile Bearing Unicompartmental Knee Instrumentation , 2013, Acta orthopaedica.

[4]  Joanne B. Adams,et al.  Radiographic comparison of mobile-bearing partial knee single-peg versus twin-peg design. , 2015, The Journal of arthroplasty.

[5]  Hiroaki Nakamura,et al.  Oxford phase 3 unicompartmental knee arthroplasty in Japan--clinical results in greater than one thousand cases over ten years. , 2013, The Journal of arthroplasty.

[6]  P. Müller,et al.  Sports activities after medial unicompartmental knee arthroplasty Oxford III—What can we expect? , 2012, International Orthopaedics.

[7]  H. Gill,et al.  Minimally invasive Oxford phase 3 unicompartmental knee replacement: results of 1000 cases. , 2011, The Journal of bone and joint surgery. British volume.

[8]  Peter W. Jones,et al.  The Twin Peg Oxford partial knee replacement: the first 100 cases. , 2012, The Knee.

[9]  R. Emerson,et al.  Unicompartmental knee arthroplasty with the oxford prosthesis in patients with medial compartment arthritis. , 2008, The Journal of bone and joint surgery. American volume.

[10]  C. V. van Dijk,et al.  Oxford Phase 3 unicompartmental knee arthroplasty: medium-term results of a minimally invasive surgical procedure , 2010, Knee Surgery, Sports Traumatology, Arthroscopy.

[11]  A. Lombardi,et al.  Does body mass index affect the outcome of unicompartmental knee replacement? , 2013, The Knee.

[12]  P. Pynsent,et al.  The Oxford medial unicompartmental knee replacement: survival and the affect of age and gender. , 2012, The Knee.

[13]  A. Lombardi,et al.  Medial mobile bearing unicompartmental knee arthroplasty: early survivorship and analysis of failures in 1000 consecutive cases. , 2013, The Journal of arthroplasty.

[14]  O. Faour-Martín,et al.  Oxford phase 3 unicondylar knee arthroplasty through a minimally invasive approach: long-term results , 2013, International Orthopaedics.

[15]  A. Price,et al.  A Second Decade Lifetable Survival Analysis of the Oxford Unicompartmental Knee Arthroplasty , 2011, Clinical orthopaedics and related research.