ACUMED RADIAL HEAD PLATE PDF

Radial Head Plate. Home > Resources > Images > Radial Head Plate. Acumed Radial Head Plating System – On Bone T: ; E: [email protected] Acumed’s Locking Radial Head Plate System provides an innovative and improved method for the treatment of fractures where the radial head. The Acumed Anatomic Radial Head System is designed to provide an 2 Mini and Micro instruments and the Locking Radial Head Plate System at the base of .

Author: Akihn Mizilkree
Country: Benin
Language: English (Spanish)
Genre: Medical
Published (Last): 26 August 2014
Pages: 497
PDF File Size: 18.1 Mb
ePub File Size: 13.18 Mb
ISBN: 278-4-71132-476-8
Downloads: 83580
Price: Free* [*Free Regsitration Required]
Uploader: Negis

Many medium-term radiological reviews of radial head prosthesis show a high rate of radiolucency around the stem and also osteoporosis of the capitellum, indicating uneven and incongruous loading at the joint [ 13 ]. King found that the stability and load transfer of the elbow with radial head replacement are equal to those of a native radial head [ 89 ]. Methods Three commercially available circular radial head designs were compared with an anatomical radial head and 2 modified anatomical prototype radial head designs in 10 cadaveric specimens.

Radial Head Plate | Acumed

Partially Grit Blasted Stems: In addition, collar reamers are designed to accumed a perpendicular neck surface for the stem collar. The Acutrak 2 Mini and Micro Headless Compression Screw instrumentation is also found at the bottom of each radial head replacement system tray, expanding the treatment options for the surgeon. The fluted stem of the AARHS can provide rotational stability and grit blasted stem surface promotes bony ongrowth.

Table 1 Type of radial head fracture with associated injuries recorded for the 12 patients. The radial head replacement with the AARHS can provide effectively stability and good clinic results at plage middle term following up. Standard length stems range from 6—10 mm in diameter in 1 mm increments and 0—8 mm heights in 2-mm incrementsand are fully grit-blasted to promote bony ongrowth.

  5434 SAYL KANUN PDF

Influence of radial head prosthesis design on radiocapitellar joint contact mechanics. Published by Elsevier, Inc. In this study, we present a classification scheme to support our radiographic observations. Product Overview The Acumed Radial Head Plating System provides an innovative method for the treatment of fractures when the radial head is salvageable.

Anatomic Plate 2 lengths and 2 head curvatures provide the surgeons with the options to select the optimal solution for their patients anatomy. The Anatomic Radial Head System, which also accommodates the Acutrak 2 Mini and Micro Headless Compression Screw systemsand all necessary instrumentation fit inside the same tray to allow for ease preoperative assessment.

AARHS can provide the patient with an anatomical prosthesis, and wear acu,ed the capitellum is theoretically reduced due to the improved biomechanics and balancing within the elbow. These were significantly greater with symmetrical circular prostheses than with asymmetrical elliptical designs.

Comminuted radial head fractures treated by the Acumed anatomic radial head system

There were no complications such as infection, implant loosening, instability of the elbow, cubitus valgus, osteoporosis of the capitellum, or platw in the forearm and wrist. Conclusion Commercially available radial head prostheses demonstrated reduced radiocapitellar contact areas and elevated contact pressures during compressive loading. Screw length is determined with either the laser marking on the drill bit or with radual depth probe, allowing depth measurement to be read directly off of the drill guide.

All patients treated by the Acumed anatomic radial head system achieved our follow up at a mean follow-up of Radial head replacement with a bipolar system: Open in a separate window.

The system provides a comprehensive solution for radial head replacement.

The Radial Head Plating System may be acumeed with any of the Acumed anatomic radial head replacement systems and may be found at the bottom of the tray. Between January and December12 patients six men and six women Table 1 with radial head comminuted fractures were treated by radial head replacement of the Acumed anatomic radial head prosthesis system.

  FREGE GRUNDGESETZE DER ARITHMETIK PDF

And the design changed from nonanatomical implants to anatomic design that attempts to replicate the variable shape of the native radial head. Statistical analysis The flexion and extension, supination and pronation range of motion, and hdad lateral and medial ulnohumeral space, proximal radial migration were analyzed and compared. After determining the correct size head and stem, insert the implant into the radius using the impactor and a mallet.

All patients were satisfied with the clinical results. These stems accommodate a resection window of 19 mm—28 mm. So in these cases, radial head replacement should be considered, particularly associated with coronoid process fracture and ligament injuries of the elbow.

The mean Hospital for Special Surgery total elbow scoring was Resect the radial head with a microsagittal saw as close to the surgical neck as acimed. Janssen RP, Vegter J.

The dominant limb was injured in seven patients. The mean DASH score was Designed in conjunction with Shawn W. Ensure that the laser etched line on the head is aligned with the lateral aspect of the radius when the forearm is in neutral position.

Anatomic Radial Head System | Acumed

Radiographic measurement revealed that average lateral ulnohumeral space on the affected side was 2. Four long stems accommodate resection lengths from 19 mm to 28 mm. Reamers allow for a 1 mm larger acume diameter and may decrease risk of iatrogenic fractures of the radius compared to broaches.