12/31/2023 0 Comments Treatment for radial head fracture![]() ![]() The inclusion criteria were all patients with traumatic elbow fracture and instability, where the radial head was comminuted and irreparable at the time of surgery and there was associated valgus laxity of the elbow. Their mean age at the time of surgery was 40.9 years (22 to 70). In this study, we present the results of a small series of 12 patients with ligament repair and fracture fixation to facilitate early mobilization of the elbow.īetween January 2008 and December 2011, 12 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. AARHS was used for replacement of comminuted radial head fractures in selected patients. By providing the patient with an anatomical prosthesis, wear on the capitellum is theoretically reduced due to the improved biomechanics and balancing within the elbow. Featuring 10 left and right anatomically shaped radial head implants and 20 stem options, the system provides 200 head/stem combinations to accommodate each patient’s anatomy. The system provides a comprehensive solution for radial head replacement. The AARHS was first designed in 1988 by Shawn O’Driscoll, Ph.D, M.D. Acumed anatomic radial head system (AARHS Acumed, USA) is a unique implant that closely replicates the natural anatomy of the patient’s radial head. The radial head is clearly not round but has a more ellipsoidal shape. Past designs of radial head prostheses have had a round radial head component. And the design changed from nonanatomical implants to anatomic design that attempts to replicate the variable shape of the native radial head. Radial head prosthesis design has bipolar and monopolar design concept. So in these cases, radial head replacement should be considered, particularly associated with coronoid process fracture and ligament injuries of the elbow. King found that the stability and load transfer of the elbow with radial head replacement are equal to those of a native radial head. Because the radial head played one critical role in the elbow stability, many orthopedic surgeons suggest preserving the radial head during fracture treatment. On the other hand, comminuted radial head fracture is associated with other injuries such as dislocation of the elbow, the coronoid process fracture, and the collateral ligament disruption. Internal fixation is difficult in many cases and sometimes leads to implant failure. Radial head resection leads to pain in the forearm and wrist, joint instability, decreased strength, osteoarthrosis and cubitus valgus. Conservative treatment in this type of fracture causes poor results. The treatment of displaced comminuted radial head fractures is challenging. Our experience has encouraged us to continue using the AARHS in comminuted fractures, especially when instability of elbow is a potential problem. Conclusion: The radial head replacement with the AARHS can provide effectively stability and good clinic results at the middle term following up. There were no complications such as infection, implant loosening, instability of the elbow, cubitus valgus, osteoporosis of the capitellum, or pain in the forearm and wrist. The mean range of elbow supination was 75° (rang, 60° to 85°) and pronation 80° (range, 65° to 90°). Results: The average flexion and extension arc was 130° (range, 110° to 140°). The outcome was assessed using the Hospital for Special Surgery total elbow scoring and a modified Disability of Arm Shoulder Hand (DASH) questionnaire. The evaluation included a record of pain, function, muscle strength, contracture and rotation. Methods: This study was performed on 12 patients with traumatic elbow fracture and instability between 20 of whom 12 were reviewed at a mean follow-up of 60.8 months (19 to 77 months). The aim of this paper was to present the medium-term results of the Acumed anatomic radial head system (AARHS). A radial head replacement is more effective in comminuted radial head fractures. Objective: The treatment of comminuted radial head fractures is still challenging. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |