• Full Name: ADRIAN BARRERA FLORES
• Affiliation/Institution: Clinica Cemtro
• Country: Spain

Objectives

The purpose of this study is to determine the clinical, functional and radiological results associated with the Triathlon (PS and CS) Stryker, Mahwah, NJ, USA system for a single surgical team and an average of 17 years of follow-up.

Materials and Methods

A retrospective systematic review of 1817 consecutive arthroplasty Triathlon PS and Triathlon CS Stryker, Mahwah, NJ, USA) in 1727 patients by a single medical team at the Cemtro Clinic. Inclusion criteria included a diagnosis of osteoarthritis, avascular necrosis or posttraumatic arthritis; without morbid obesity; without previous history of replacement of the joint on the affected side; non-neuromuscular impairment of neurosensory deficiency; and no immunological suppression.

Results

Two big groups were made,Retention Triathlon in posterior cruciate ligament (CR), 709 implants (25.58%) 687 patients, bilateral 10.5%, right 52.9%, left 47.1%, age (39a-85a) 69,7a, Valga 5.7%, Anterior osteotomy 3.8, avascular necrosis 1.9%, postqx mobility range 121o; Post-surgical complications (12.3%): DVT 1.9%, Periprosthetic Fracture 2.3%, Arthrofribrosis 2.8%, Iliotibial band syndrome 0.4%, PCL rupture 0.4% (change from polyethylene to CS), Popliteal tendon dysfunction 0.4%,Acute infection 0.4%, Non-sore pain 1.4%

Posterior Stabilized Triathlon (PS):1108 implants (74.42%), Age (43a-85a) 69,8a Anterior osteotomy 7.8% ,Avascular necrosis 3% Mobility range postqx 125 °. Post-surgical complications: DVT1.4%, Periprotestic fracture 1.1%, MCL lesion 0.32% , Arthrofribrosis 1.3%, Common peroneus N. injury 0.16%, Partial rupture of the Quadriceps and lx 0.49%, Acute infection 0.49%, Hematogenous 0.16%, Clunk syndrome 2.6%

From 1108 Triathlon to 17 years 10.36% ,Our survival at 17 years of implantation was 89.6%

Conclusions

The type of ATR design can have a significant impact on knee kinematics and posterior function,the unique radio philosophy demonstrates solving early and late failure modes with preservation of normal muscle function, lower revision rates and better stability. Although more time, resources and studies are needed in the search and development of new implants.