hip & knee

Devices made from our high performance PEEK-OPTIMATM polymers are proven to offer improved biomechanics and comfort

Breaking new ground in ortho technology

In collaboration with leading scientists and research institutions, our ortho solutions are proven to deliver improved biomechanics, reduced wear and enhanced bone growth. Innovative orthopedic device companies have chosen our biomaterial solutions for over decades.

Ready to evaluate PEEK-OPTIMATM polymers for your next device? 


Used in applications such as hip cups, rotating-hinge knees and knotless shoulder anchors, our metal-replacement solutions are reshaping orthopedics to deliver greater long-term patient satisfaction. From discovering new ortho device opportunities to supporting market adoption, Invibio is here to help you every step of the way in this highly regulated environment.

Hip arthroplasty

Our durable biomaterial, PEEK-OPTIMATM Wear Performance, addresses the need for new, longer-lasting designs for younger and more active patients. Excellent wear resistance and exceptional structural strength make it an ideal choice for hip cups that support bone-conserving concepts.4-6 Benefits include:

  • metal-free load-bearing material designed to address metal ion concerns
  • a modulus similar to human bone, which reduces stress shielding and leads to improved physiological loading
  • accommodates both standard and new implant fixation technologies
  • radiolucent and compatible with common imaging technologies for improved visualization for placement and post-operative follow-up2
Knee arthroscopy

Knee arthroscopy

Tibial and femoral interference screw systems made from PEEK-OPTIMATM polymers provide many structural properties needed when designing the next generation fixation system:

  • Cortical and cancellous thread forms can be molded or machined to provide the ideal bite for the target boney substrate
  • Strength to withstand the high torque loads encountered during graft impingement in the bone tunnel
  • Are radiolucent, allowing simple post-operative assessment of repairs before final tensioning and closure using standard imaging techniques2
  • Bio-inert to reduce the risk of patient reaction to devices implanted in the body

Featured resources

Intermedullary nails
PEER REVIEwed case report
Fixation of Intertrochanteric Fractures of the Hip With a Carbon Fiber Intramedullary Implant
Read case report in JoT
PEER reviewed paper
Early Results of a New Rotating Hinge Knee Implant
Read abstract

1.Rho, JY et al (1993). “Young’s modulus of trabecular and cortical bone material: Ultrasonic and microtensile measurements”. Journal of Biomechanics 26 (2); 111–119
2.Supportive information available on request.
3.T.M. Grupp, A. Giurea, R.K. Miehlke, M. Hintner, M. Gaisser, C. Schilling, J. Schwiesau, C. Kaddick (2013). Biotribology of a new bearing material combination in a rotating hinge knee articulation. Acta Biomater. 2013 Jun;9(6):7054-63. doi: 0.1016/j.actbio.2013.02.030
4.Scholes, S. C., Inman, I. A., Unsworth, A., Jones, E. Tribological assessment of a flexible carbon-fiber-reinforced poly (ether-ether-ketone) acetabular cup articulating against an alumina femoral head. Proc. Instn. Mech. Engrs. Part H, Journal of Engineering in Medicine, Vol. 222, Number 3, 2008, pp. 273-283(11).
5.Scholes, S. C. and Unsworth, A. Pitch-based carbon-fiber-reinforced poly (ether–ether–ketone) OPTIMA™ assessed as a bearing material in a mobile bearing unicondylar knee joint. Proc. Instn. Mech. Engrs. Part H, Journal of Engineering in Medicine, Vol. 223, H1, 2009, pp. 13-26.
6.Pace, N., Spurio, S., Pavan, L., Rizzuto, G., and Strecher, R.M. Clinical Trial of a New CF-PEEK Acetabular Insert in Hip Arthroscopy. Abstracts from the European Hip Society 2002 Domestic Meeting.