ALPS-II plates are multipurpose Advanced Locking Plate Systems (ALPS) used for bone plating. They are second-generation locking plates based on ALPS^® Technology and are an integral part of the ALPS^® Product Range.

ALPS-II is available in two versions:

• ALPS-II is a standard plate available in a wide range of sizes ideal for simple repairs and complex repairs requiring extensive contouring.
• ALPS-IIS is an extra strong plate available in a wide range of sizes ideal for repairs requiring extra strength or where double plating is not feasible.

ALPS-II plates are designed to meet the needs of veterinary professionals:

Shape it. With ALPS-II, contouring in three dimensions with one single tool makes simple repairs ideal and complex repairs possible.

Anchor the way you want it. Monocortical and bicortical locking, compression or angulated KLS™ with beads and fixed-angle anchoring –  everything is possible.

Faster and easier to use. Anchoring by KLS™ is easy, fast and safe.

Think about your inventory.

• Small and medium ALPS-II and ALPS-IIS plates can be cut to the desired length –  no need to have all lengths in stock. Large plates are available in various lengths.
• Using KLS™ allows you to use the same screws for multiple procedures, saving space and money.

All ALPS plates use ALPS^® Technology, which includes a unique design to preserve the vascular supply, reduce the risk of infection and accelerate healing.

Principles

The main design objective

• Minimize vascular damage to both periosteum and endosteum
• Allow adaptation in both planes yet exceed the strength of conventional plates
• Accept both regular and locking screws in all holes
• Use biocompatible titanium and titanium alloys

Vascular damage is minimal because:

• The underside of ALPS plates allows for minimal contact with the bone, reducing compression of periosteal blood vessels
• The endosteal blood supply is spared through the preferred use of locking, monocortical screws; drilling depth is controlled with a drill stop limiting vascular damage within the medullary canal.

Adaptation to bone geometry by bending in both planes is facilitated by:

• The computer-optimized shape of the plate
• The use of unique bending pliers for in-plane bending and modified bending irons for out-of-plane bending, designed to protect the holes

Geometry of the screw heads and of the screw holes permit use of either:

• Conventional bone screws, with ±30° longitudinal and ±5° transverse swivel, either in neutral or compression mode. The screw holes are tapered to squeeze the screw heads, preventing unscrewing
• Locking screws, preferred as long as the cortex thickness is sufficient. Near the joints, you can use either longer locking screws, or conventional bicortical screws.

ALPS^® Product Range uses only titanium or titanium alloys for all of its implants:

• They allow bone and soft tissue to make a close, adhering contact at the interfaces, preventing formation of a fluid-filled gap – a major risk for seeding and spread of infection
• They offer superior mechanical properties with a favorable tradeoff between ductility and strength.

Highly advanced manufacturing technologies used by KYON suppliers to produce the implants and instruments of the ALPS^® Product Range have given us an opportunity to provide veterinary surgeons with the most advanced affordable plating system available.

Technical Specifications

Are you looking for sizes, item numbers or required instruments or screws? Please download our catalog.

CATALOG

Publications

Niederhäuser SK¹, Tepic S², Weber UT¹.
Effect of screw position on single cycle to failure in bending and torsion of a locking plate–rod construct in a synthetic feline femoral gap model
American Journal of Veterinary Research. 2015 May; 76(2):402-410. doi: 10.2460/ajvr.76.5.402
¹Tierärztliches Überweisungszentrum, Small Animal Referral Practice, CH-4456 Tenniken, Switzerland.
²Kyon AG, Technoparkstrasse 1, CH-8005 Zurich, Switzerland

Nojiri A¹, Akiyoshi H, Ohashi F, Ijiri A, Sawase O, Matushita T, Takemoto M, Fujibayashi S, Nakamura T, Yamaguchi T¹
Treatment of a unicameral bone cyst in a dog using a customized titanium device
J Vet Med Sci. 2015 Jan; 77(1): 127–131. doi: 10.1292/jvms.13-0548
¹Fabre Animal Medical Center, 4–8 Minaminoguchi-cho, Kadoma, Osaka 571– 0065, Japan

Guerrero TG¹, Kalchofner K, Scherrer N, Kircher P.
The Advanced Locking Plate System (ALPS): a retrospective evaluation in 71 small animal patients.
Vet Surg. 2014 Feb;43(2):127-35. doi: 10.1111/j.1532-950X.2014.12097.x. Epub 2014 Jan 6.
¹Department for Small Animal Surgery, Vetsuisse Faculty University of Zurich, Zurich, Switzerland; Small Animal Medicine and Surgery Academic Program, School of Veterinary Medicine, St. George’s University, True Blue, Grenada, West Indies.

Pozzi A¹, Peck JN, Chao P, Choate CJ, Barousse D, Conrad B.
Mechanical evaluation of adjunctive fixation for prevention of periprosthetic femur fracture with the Zurich cementless total hip prosthesis.
Vet Surg. 2013 Jun;42(5):529-34. doi: 10.1111/j.1532-950X.2013.12018.x. Epub 2013 Jun 3.
¹Department of Small Animal Clinical Sciences, Comparative Orthopaedics and Biomechanics Laboratory, University of Florida, College of Veterinary Medicine, Gainesville, Florida, USA.

Blake CA¹, Boudrieau RJ, Torrance BS, Tacvorian EK, Cabassu JB, Gaudette GR, Kowaleski MP.
Single cycle to failure in bending of three standard and five locking plates and plate constructs.
Vet Comp Orthop Traumatol. 2011;24(6):408-17. doi: 10.3415/VCOT-11-04-0061. Epub 2011 Sep 21.
¹Department of Clinical Sciences, Tufts University, North Grafton, MA 01536, USA.

Cabassu JB¹, Kowaleski MP, Skorinko JK, Blake CA, Gaudette GR, Boudrieau RJ.
Single cycle to failure in torsion of three standard and five locking plate constructs.
Vet Comp Orthop Traumatol. 2011;24(6):418-25. doi: 10.3415/VCOT-11-04-0050. Epub 2011 Sep 21.
¹Department of Clinical Sciences, Tufts University, North Grafton, MA 01536, USA.

Inauen R¹, Koch D, Bass M.
Arthrodesis of the tarsometatarsal joints in a cat with a two hole advanced locking plate system.
Vet Comp Orthop Traumatol. 2009;22(2):166-9.
¹Koch&Bass Referal Practice for Small Animal Surgery, Basadingerstrasse 26, 8253 Diessenhofen, Switzerland. rinauen@kochbass.ch

Schlegel U¹, Perren SM.
Surgical aspects of infection involving osteosynthesis implants: implant design and resistance to local infection.
Injury. 2006 May;37 Suppl 2:S67-73.
¹AO Research Institute, AO Foundation, Davos, Switzerland. urs.schlegel@aofoundation.org

Perren SM.
Backgrounds of the technology of internal fixators.
Injury. 2003 Nov;34 Suppl 2:B1-3.
AO Research Institute, Davos, Switzerland.

Perren SM.
Evolution of the internal fixation of long bone fractures. The scientific basis of biological internal fixation: choosing a new balance between stability and biology.
J Bone Joint Surg Br. 2002 Nov;84(8):1093-110.
AO Research and Development Institutes, Davos, Switzerland.

Eijer H¹, Hauke C, Arens S, Printzen G, Schlegel U, Perren SM.
PC-Fix and local infection resistance–influence of implant design on postoperative infection development, clinical and experimental results.
Injury. 2001 Sep;32 Suppl 2:B38-43.
¹Department of Orthopaedic Surgery, University Hospital Amsterdam, The Netherlands. heijer@go.com

Hertel R¹, Eijer H, Meisser A, Hauke C, Perren SM.
Biomechanical and biological considerations relating to the clinical use of the Point Contact-Fixator–evaluation of the device handling test in the treatment of diaphyseal fractures of the radius and/or ulna.
Injury. 2001 Sep;32 Suppl 2:B10-4.
¹Department of Orthopaedic Surgery, Inselspitel, University Berne, Switzerland.

Haas N¹, Hauke C, Schütz M, Kääb M, Perren SM.
Treatment of diaphyseal fractures of the forearm using the Point Contact Fixator (PC-Fix): results of 387 fractures of a prospective multicentric study (PC-Fix II).
Injury. 2001 Sep;32 Suppl 2:B51-62.
¹Clinic for Trauma and Reconstructive Surgery, Charité, Humboldt University, Berlin, Germany.

Arens S¹, Eijer H, Schlegel U, Printzen G, Perren SM, Hansis M.
Influence of the design for fixation implants on local infection: experimental study of dynamic compression plates versus point contact fixators in rabbits.
J Orthop Trauma. 1999 Sep-Oct;13(7):470-6.
¹AO ASIF Research Institute, Davos, Switzerland.

Fernández Dell’Oca AA¹, Tepic S, Frigg R, Meisser A, Haas N, Perren SM.
Treating forearm fractures using an internal fixator: a prospective study.
Clin Orthop Relat Res. 2001 Aug;(389):196-205.
¹British Hospital, Montevideo, Uruguay.

Hauke C¹, Meisser A, Perren SM.
Methodology of clinical trials focusing on the PC-Fix clinical trials.
Injury. 2001 Sep;32 Suppl 2:B26-37.
¹AO ASIF Development Clinical Investigation, Davos-Platz, Switzerland. Christian.Hauke@hcuge.ch

Tepic S¹, Remiger AR, Morikawa K, Predieri M, Perren SM.
Strength recovery in fractured sheep tibia treated with a plate or an internal fixator: an experimental study with a two-year follow-up.
J Orthop Trauma. 1997 Jan;11(1):14-23.
¹Research Institute, AO/ASIF Foundation, Davos, Switzerland.

Arens S¹, Hansis M, Schlegel U, Eijer H, Printzen G, Ziegler WJ, Perren SM.
Infection after open reduction and internal fixation with dynamic compression plates–clinical and experimental data.
Injury. 1996;27 Suppl 3:SC27-33.
¹AO/ASIF Research Institute, Davos, Switzerland.

Ungersböck A¹, Pohler OE, Perren SM.
Evaluation of soft tissue reactions at the interface of titanium limited contact dynamic compression plate implants with different surface treatments: an experimental sheep study.
Biomaterials. 1996 Apr;17(8):797-806.
¹Department of Orthopaedic Surgery, University of Bern, Switzerland.
 

Miclau T¹, Remiger A, Tepic S, Lindsey R, McIff T.
A mechanical comparison of the dynamic compression plate, limited contact-dynamic compression plate, and point contact fixator.
J Orthop Trauma. 1995 Feb;9(1):17-22.
¹Department of Orthopedic Surgery, Baylor College of Medicine, Houston, TX 77030, USA.

Ungersböck A¹, Pohler O, Perren SM.
Evaluation of the soft tissue interface at titanium implants with different surface treatments: experimental study on rabbits.
Biomed Mater Eng. 1994;4(4):317-25.
¹AO/ASIF Research Institute Davos, Switzerland.