title: Surgical Treatment of Displaced Midshaft Clavicle Fractures: Precontoured Plates Versus Noncontoured Plates.
abstract: OBJECTIVE
  To compare the outcomes and complications of open reduction and internal fixation using precontoured versus noncontoured plates for the treatment of midshaft clavicle fractures.
  
  
  METHODS
  Open reduction and internal fixation using was performed on 130 patients with a midshaft clavicle fracture. Precontoured plates were used in 69 cases (group A) and noncontoured plates in 61 cases (group B).
  
  
  RESULTS
  The average follow-up in both groups was approximately 21 months. There was a significant difference between the 2 groups in mean surgery duration and blood loss, although Disabilities of the Arm, Shoulder, and Hand and Constant-Murley Shoulder scores at final follow-up were similar. Plate removal was required in 44.9% (31 of 69) of the precontoured group and 65.6% (40 of 61) of the noncontoured group. The indication was prominence of the hardware in 27.5% (19 of 69) of the precontoured group and 54.1% (33 of 61) of the noncontoured. In both groups, body mass index was lower in patients requiring implant removal because of hardware prominence. A higher proportion of females in both groups required implant removal.
  
  
  CONCLUSIONS
  Precontoured plates are associated with a lower rate of hardware removal. Body mass index and gender may be factors that influence the rate of hardware removal.
  
  
  METHODS
  Therapeutic IV.
authors: Department of Orthopaedics, Shanghai Pudong Hospital, Shanghai Fudan University Pudong Medical Center, Shanghai, China.
authors: Ao
authors: A
authors: Rongguang
authors: Department of Orthopaedics, Shanghai Pudong Hospital, Shanghai Fudan University Pudong Medical Center, Shanghai, China.
authors: Jian
authors: J
authors: Zhen
authors: Department of Orthopaedics, Shanghai Pudong Hospital, Shanghai Fudan University Pudong Medical Center, Shanghai, China.
authors: Zhou
authors: Z
authors: Jianhua
authors: Department of Orthopaedics, Shanghai Pudong Hospital, Shanghai Fudan University Pudong Medical Center, Shanghai, China.
authors: Shi
authors: S
authors: Jifei
authors: Department of Orthopaedics, Shanghai Pudong Hospital, Shanghai Fudan University Pudong Medical Center, Shanghai, China.
authors: Jiang
authors: J
authors: Xinhua
authors: Department of Orthopaedics, Shanghai Pudong Hospital, Shanghai Fudan University Pudong Medical Center, Shanghai, China. Electronic address: doctorybq@163.com.
authors: Yu
authors: Y
authors: Baoqing
mesh_terms: D000328:Adult; D001860:Bone Plates; D002968:Clavicle / Q000293:injuries / Q000601:surgery*; D005260:Female; D005593:Fracture Fixation, Internal / Q000009:adverse effects* / Q000295:instrumentation; D050723:Fractures, Bone / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies
keywords: Clavicle; fracture; midshaft; noncontoured plate; precontoured plate