title: Complications of low-profile dorsal versus volar locking plates in the distal radius: a comparative study.
abstract: OBJECTIVE
  Dorsal plating of distal radius fractures with traditional 2.5-mm-thick plates is associated with extensor tendon complications. Consequently, volar locking plates have gained widespread acceptance. A new generation of 1.2- to 1.5-mm, low-profile dorsal plates was designed to minimize tendon irritation. This study examines the complication rates of low-profile dorsal plates compared with volar locking plates.
  
  
  METHODS
  We identified patients with distal radius fractures treated between September 2002 and June 2006 by low-profile dorsal or volar locking plates. Information pertaining to 7 categories of complications (hardware discomfort and pain, tendon irritation/rupture, failure of reduction, infection, complex regional pain syndrome, stiffness, and neuropathy/hypersensitivity) was collected. Complications were defined as any postoperative plating complications requiring additional surgical intervention, whereas those that only caused patient discomfort were considered secondary problems.
  
  
  RESULTS
  We included 100 patients, comprising 104 plating cases (57 dorsal, 47 volar), in this study. Overall length of follow-up was 44 ± 21 months (range, 12-80 mo). A total of 18 patients (8 dorsal, 10 volar) experienced complications, whereas 47 (25 dorsal, 22 volar) had secondary reports. Three dorsal and 4 volar patients had complete plate removals. Three dorsal and no volar plates had screw removals only. One volar plate (no dorsal plates) had a major tendon rupture (flexor pollicis longus); 3 dorsal and 3 volar plates resulted in tendon irritation complications, and 4 dorsal and 3 volar plates had secondary problems from tendon irritation. None of the above measures approached statistical significance. Volar cases were associated with significantly more neuropathic complications than dorsal cases.
  
  
  CONCLUSIONS
  Dorsal low-profile plates are not associated with significantly more tendon irritation or rupture complications. However, volar plating is associated with a higher rate of neuropathic complications.
  
  
  METHODS
  Therapeutic III.
authors.affiliation: Beth Israel Deaconess Medical Center and the Harvard Medical School, Boston, MA 02215, USA.
authors.forename: Yangyang R
authors.initials: YR
authors.lastname: Yu
authors.forename: Melvin C
authors.initials: MC
authors.lastname: Makhni
authors.forename: Shervin
authors.initials: S
authors.lastname: Tabrizi
authors.forename: Tamara D
authors.initials: TD
authors.lastname: Rozental
authors.forename: George
authors.initials: G
authors.lastname: Mundanthanam
authors.forename: Charles S
authors.initials: CS
authors.lastname: Day
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D001860:Bone Plates; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D005593:Fracture Fixation, Internal / Q000009:adverse effects* / Q000295:instrumentation* / Q000379:methods; D017102:Fracture Healing / Q000502:physiology; D006801:Humans; D015994:Incidence; D015601:Injury Severity Score; D007593:Joint Instability / Q000209:etiology / Q000517:prevention & control; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D011183:Postoperative Complications / Q000175:diagnosis / Q000453:epidemiology* / Q000601:surgery; D011474:Prosthesis Design; D011859:Radiography; D011885:Radius Fractures / Q000000981:diagnostic imaging / Q000601:surgery*; D016059:Range of Motion, Articular / Q000502:physiology; D012189:Retrospective Studies; D018570:Risk Assessment; D017678:Sex Distribution; D016896:Treatment Outcome; D014954:Wrist Injuries / Q000000981:diagnostic imaging / Q000601:surgery; D055815:Young Adult