optimys
MATHYS
optimys
Stem guided by the calcar femorale
The optimys stem was developed to allow reconstruction of the individual patient’s anatomy. The key anatomical landmark for implanting the stem is the medial curvature of the femur, allowing the objective of restoration of the centre of rotation and offset to be achieved, regardless of the initial varus or valgus position of the femoral neck.1, 2
The philosophy of the optimys stem focuses on the medial curvature of the femur (calcar femorale). The result is the stem can be adapted to the patient’s individual anatomical conditions with the goal of reconstructing the patient’s offset.1, 2 The distinctive triple taper design allows good primary stability to be achieved to minimise the risk of subsidence postoperatively.3, 4, 5 The titanium plasma spray with calcium phosphate coating promotes osseointegration of the stem.
With twelve sizes for the standard and lateral version, the system offers a comprehensive implant portfolio.
The optimys stem, in combination with a Mathys ceramic head and the RM Pressfit vitamys cup, is known as the bonepreservation system.
Update: The Enovis and Mathys product range is now exclusively available through LimaCorporate in the UK. Osteotec remains the distributor for Enovis and Mathys customers in Ireland (Republic of Ireland and Northern Ireland) and the Nordics (Norway, Sweden, Denmark, and Finland).
- Reconstruction of the patient’s individual anatomy (offset/CCD angle) by the medial curvature of the stem1, 2
- Triple taper design to support the primary stability of the implant3, 4, 5
- Bone integration supported by the titanium plasma spray with calcium phosphate coating6
- Polished distal tip to prevent osseointegration at the end of the stem
- 5A* ODEP Rating7
- Kutzner, K.P., et al., Reconstruction of femoro-acetabular offsets using a short-stem. Int Orthop, 2015. 39(7): p. 1269-75.
- Kovacevic, M.P., et al., Defining the anatomic range of short-stem implantation – calcarguided restoration of individual CCD angle, in 11th EHS Congress. 2014: Stockholm – Sweden.
- Bieger, R.I., A.;Reichel, H.;Durselen, L., Biomechanics of a short stem: In vitro primary stability and stress shielding of a conservative cementless hip stem. J Orthop Res, 2013. 31(8): p. 1180-6.
- Kutzner, K.P., et al., One-stage bilateral versus unilateral short-stem total hip arthroplasty: comparison of migration patterns using “Ein-Bild-Roentgen-Analysis Femoral-Component-Analysis”. Int Orthop, 2016.
- Kutzner, K.P., et al., Influence of patient-related characteristics on early migration in calcar-guided short-stem total hip arthroplasty: a 2-year migration analysis using EBRA-FCA. Journal of Orthopaedic Surgery and Research, 2016. 11(1): p. 1-9.
- Kutzner, K.P., et al., Radiographic alterations in short-stem total hip arthroplasty: a 2-year follow-up study of 216 cases. Hip Int, 2016: p. 0.
- Latest ODEP ratings can be found at www.odep.org.uk.
More information on the bonepreservation system can be found at www.bonepreservation.com.
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