title: Comminuted radial head fractures treated by the Acumed anatomic radial head system.
abstract: OBJECTIVE
  The treatment of comminuted radial head fractures is still challenging. A radial head replacement is more effective in comminuted radial head fractures. The aim of this paper was to present the medium-term results of the Acumed anatomic radial head system (AARHS).
  
  
  METHODS
  This study was performed on 12 patients with traumatic elbow fracture and instability between 2008 and 2011 of whom 12 were reviewed at a mean follow-up of 60.8 months (19 to 77 months). The evaluation included a record of pain, function, muscle strength, contracture and rotation. The outcome was assessed using the Hospital for Special Surgery total elbow scoring and a modified Disability of Arm Shoulder Hand (DASH) questionnaire.
  
  
  RESULTS
  The average flexion and extension arc was 130° (range, 110° to 140°). The mean range of elbow supination was 75° (rang, 60° to 85°) and pronation 80° (range, 65° to 90°). 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 DASH score was 11.9/100 (0 to 25/100).
  
  
  CONCLUSIONS
  The radial head replacement with the AARHS can provide effectively stability and good clinic results at the middle term following up. Our experience has encouraged us to continue using the AARHS in comminuted fractures, especially when instability of elbow is a potential problem.
authors.affiliation: Department of Orthopedics, Wenzhou Central Hospital, Affiliated Dingli Clinical Institute of Wenzhou Medical University Zhejiang, China.
authors.forename: Zhefei
authors.initials: Z
authors.lastname: Mou
authors.affiliation: Department of Neurosurgery, Wenzhou Central Hospital, Affiliated Dingli Clinical Institute of Wenzhou Medical University Zhejiang, China.
authors.forename: Maohua
authors.initials: M
authors.lastname: Chen
authors.affiliation: Department of Orthopedics, Daping Hospital, The Third Military Medical University Chongqing, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Xiong
authors.affiliation: Department of Orthopedics, Daping Hospital, The Third Military Medical University Chongqing, China.
authors.forename: Zhihang
authors.initials: Z
authors.lastname: Fan
authors.affiliation: Department of Orthopedics, Daping Hospital, The Third Military Medical University Chongqing, China.
authors.forename: Aimin
authors.initials: A
authors.lastname: Wang
authors.affiliation: Department of Orthopedics, Daping Hospital, The Third Military Medical University Chongqing, China.
authors.forename: Ziming
authors.initials: Z
authors.lastname: Wang
keywords: Comminuted radial head fractures; radial head replacement