Discovery® Elbow
Surgical
Discovery® Elbow
Backed by over 15 years of clinical history, the Discovery® Elbow System features spherical clondyles on the hinge to allow for the distribution of stress evenly across the system. The Discovery Elbow system also includes Vitamin E+ poly, which has been found to reduce wear, minimize oxidation, and maintain the mechanical integrity of the Discovery Elbow System.
- Overview
- Videos
- Clinical Results
- References
Bearing Design
- Spherical hinge reduces wear by providing increased articular surface contact area between the humeral and ulnar components
- Varus/valgus laxity of 7 degrees
- Optimized hinge size addresses individual anatomy by allowing any humeral component to be used with any ulnar component
- Posterior hinge allows for assembly or disassembly without compromising either epicondyle
Humeral Stem
- Bowed stem reproduces anatomy through 5 degree lateral offset and 5 degree internal rotation
- Cylindrical base preserves bone to minimize stress risers at the supracondylar columns1
- Anterior flange for enhanced rotational stability and to help prevent posterior sublaxation
Ulnar Stem
- 23 degree anterior neck angle of stem allows for anatomic axis of motion
- Polyethylene offset and lateral bow provide for reproduced anatomy
- Clinically proven ArCom® polyethylene reduces the possibility of stress hemi-delamination and early polyethylene failure2,3
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Discovery® Elbow Animation
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Discovery® Elbow Presentation with Dr. Hastings
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Discovery® Elbow Surgery with Dr. Hastings
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Discovery® Elbow Surgery with Dr. Mighell and Clark
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Discovery® Elbow Fracture Webinar with Dr. Chuinard
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Discovery® Elbow Revision with Dr. Shafritz
- A 5-year observational study was conducted to understand the outcomes and durability of the Discovery Elbow. The Results found that the Discovery Elbow system increased function and decreased pain, with high survivorship (humeral and ulnar components, 100%; clondyles, 97.8%, and bearings/ screws, 95.7%)1
- In a study of 79 Rheumatoid Arthritis patients, the Discovery Elbow system provided significant improvement in the flexion-extension arc with mean flexion improving from 120o to 146° with mean extension lag improving from 29° to 24° 2
- In a single surgeon study of 25 patients (with 31 elbows total) the Discovery Elbow system was found to have a Kaplan-Meier survival of 90% in Rheumatoid Arthritis patients3
- In a single surgeon study of 25 elbows, at 8-years post-operation, the Discovery Elbow system was found to have a Kaplan-Meier survival of 90%, with mean range of motion improved in flexion and extension to 113° and pronation/supination to 67°4
- Mid-term (40. 6 months) clinical results of the Discovery Elbow System found significant improvements in range of motion and oxford elbow scores. For treatment of acute fractures and posttraumatic conditions regarding pain relief, overall improvement in functionality, and patent satisfaction, doctors reported “excellent” patient results.5 The Kaplan-Meier survivorship at 5 years was 92.2% for aseptic loosening, with no implant failures reported6
- At final follow-up, the Discovery Elbow system was found to improve function: with 64% of patients reporting pain-free, and a patient satisfaction rate (both revision and primary) of 90%7
- Figgie, M. P. et al. Total Elbow Arthroplasty. Total Joint Replacement. 659-706, 1991.
- Won, C.H. et al. Effect of Resin Type and Manufacturing Method of Wear of Polyethylene Tibial Components. Clinical Orthopaedics and Related Research. 376: 161-71, 2000.
- Currier, B. H. et al. Effect of Fabrication Method Resin Type on Performance of Tibal Bearings. Journal of Biomedical Materials Research. 53(2): 143-51, 2000.
- Hastings H et al., A Prospective Multicenter Clinical Study of the Discovery Elbow. J Shoulder Elbow Surg 23(5):e95-e107, 2014.
- Giannicola G, Sacchi M, Pollmanti D, Cinotti G,. Discovery Elbow System: 2-to-5 Year Results in Distal Humerus Fractures and Posttraumatic Conditions: A Prospective Study on 24 Patients. J Hand Surg Am. 2014.
- Hannien et al., Discovery Elbow System Clinical and Radiological Results After 2-to-10 Year Follow-up. Eur J Orthop Surg Traumatol 27(7):901-907.
- EFORT Congress 2015 Paper 575
- Mukka et al., Semiconstrained Total Elbow Arthroplasty for Rheumatoid Arthritis Patients: Clinical and Radiological Results of 1-8 Years Follow Up. 135(5):595-600, 2015.
- Large et al., Medium-Term Clinical Results of a Linked Total Elbow Replacement System. Bone Joint J., 96B- 10. 2014.
- Alizadehkhaiyat et al., Total Elbow Arthroplasty: A Prospective Clinical Outcome Study of Discovery Elbow System with a 4-year mean Follow-Up. J Shoulder Elbow Surg 24 (1): 52-59, 2015.