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 .
|Published (Last):||5 March 2008|
|PDF File Size:||7.66 Mb|
|ePub File Size:||10.51 Mb|
|Price:||Free* [*Free Regsitration Required]|
The system offers a straightforward solution when the radial head is rafial. Open in a separate window. The distal tip of plahe Plate Tack is threaded, allowing it to maintain its provisional fixation until it is removed later in the procedure.
Most patients got a pain-free elbow and visual analog scale for pain 1. A variety of implants have been used to replace the radial head. The coronoid fracture and the olecranon fracture were fixed with screw Figure 2. Introduction The treatment of displaced comminuted radial head fractures is challenging. Past designs of radial head prostheses have had a round radial head component.
Author information Article notes Copyright and License information Disclaimer. Product Overview The Acumed Anatomic Radial Head System provides a comprehensive solution that includes the first anatomically-shaped radial head prosthesis on the market and is equipped with the tools needed to restore the patient’s anatomy in a radial head replacement surgery.
Determine head diameter by placing the resected head into the sizing pockets on the impactor base. Compared with other studies of a similar size, our clinical results with all excellent nead at medium-term follow-up is better than other studies [ 12 – 18 ]. radiwl
Radial Head Plating System | Acumed
The range of elbow inflexion was recorded and muscle strength was measured with a dynamometer. Results The mean contact areas for the prosthetic radial heads were significantly less than those seen with the intact radial heads at every angle tested P Conclusion The geometry of radial head implants strongly influences their contact characteristics.
The fluted stem of the AARHS can provide rotational stability and grit blasted stem surface promotes bony ongrowth. Discussion For comminuted radial head fractures, satisfactory internal fixation to comminuted radial head is often difficult.
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. 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.
New Anatomic Design Features Contouring of the medial side of the head has been further defined to track against the lateral side of the ulna. Open reduction and internal fixation of fractures of the radial head. Click Here to Request More Raidal.
Radial head replacement The operations were performed by two surgeons Yan Xiong and Ziming Wang in our department within ten days of injury. Support Center Support Center. The Acumed Anatomic Radial Head System is designed to provide an anatomic implant to replace the patient’s native radial head. Journal Abstract Hypothesis Our aim was radia test whether anatomically designed metallic radial head implants could better reproduce native radiocapitellar contact pressure and areas than nonanatomic implants.
Anatomic Radial Head System | Acumed
There were no complications such as infection, implant loosening, instability of the elbow, cubitus valgus, osteoporosis of the capitellum, or pain in scumed forearm and wrist. In addition to citing existing scholarly papers, we conduct ongoing clinical research and use this information for validation and continuous improvement to deliver the greatest value to our customers. J Orthop Surg Hong Kong ; Journal Abstract Objective Stress shielding is known to occur around rigidly fixed implants.
Conclusion Stress shielding around radial head prostheses is common, regardless of stem design. The system offers standard head and stem combinations, including five left- and five right-specific head options, five stem diameters, and five collar heights.
All the elbows were stable with no cubitus valgus or osteoporoswas of the capitellum. Open heas and internal fixation of radial head fractures. Many radial head designs have been used currently, but little studies showed that one design is better than another. It is critical that the coronoid contacts the trochlea during this process. Platee radial head arthroplasty improves valgus stability of the elbow. These were significantly greater with symmetrical circular prostheses than with asymmetrical elliptical designs.
Corresponds to the stem diameter and proper insertion depth based on equivalent level of resection.
The standard stems accommodate a resection window of 9 mm—17 mm. Designed in conjunction with Shawn W.
Anatomic Radial Head Solutions
None of the elbows had symptoms or signs of instability at the final evaluation. Optimized Screw Trajectory Converging and diverging screw angles provide stability and support, and help capture fracture fragments.
All patients were immobilized initially in a long arm splint in 90 degrees of flexion with neutral rotation. The most important cause of failure of internal fixation has been the inability to achieve rigid internal fixation [ 11 ]. Comminuted radial head fractures, radial head replacement.
Patients and methods General data 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. Select the collar reamer that matches the stem diameter determined by the broach. Fixation versus replacement of radial head in terrible triad: J Shoulder Elbow Surg.
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 ]. Statistical analysis The flexion and extension, supination and pronation range of motion, and the lateral and medial ulnohumeral space, proximal radial migration were analyzed and compared.
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.