title: Asymmetry in gait pattern following tibial shaft fractures - a prospective one-year follow-up study of 49 patients.
abstract: Despite the high number of studies evaluating the outcomes following tibial shaft fractures, the literature lacks studies including objective assessment of patients' recovery regarding gait pattern. The purpose of the present study was to evaluate whether gait patterns at 6 and 12 months post-operatively following intramedullary nailing of a tibial shaft fracture are different compared with a healthy reference population.
  
  
  
  The study design was a prospective cohort study. The primary outcome measurement was the gait patterns at 6 and 12 months post-operatively measured with a 6-metre-long pressure-sensitive mat. The mat registers footprints and present gait speed, cadence as well as temporal and spatial parameters of the gait cycle. Gait patterns were compared to a healthy reference population.
  
  
  
  49 patients were included with a mean age of 43.1 years (18-79 years). Forty-three patients completed the 12-month follow-up (88%). Gait speed and cadence were significantly increased between the 6- and 12-month follow-up (P<0.001). At 6-month follow-up, patients showed considerable asymmetry in the injured leg compared with the non-injured leg: single-support time 12.8% shorter, swing-time 12.8% longer, step-length 11.9% shorter, and rotation of the foot increased by 32.3%. At the 12-month follow-up, gait asymmetry become almost normalized compared to a healthy reference group.
  
  
  
  In patients treated by intramedullary nailing following a tibial shaft fracture, gait asymmetry accompanied with slower speed and cadence are common during the first 6 months and become normalized compared with a healthy reference population between 6 and 12 months post-operatively.
authors.affiliation: Department of Occupational Therapy and Physiotherapy, Aalborg University Hospital, Denmark. Electronic address: peter.larsen@rn.dk.
authors.forename: Peter
authors.initials: P
authors.lastname: Larsen
authors.affiliation: Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark; Physiotherapy Department, University College North Denmark, UCN, Denmark. Electronic address: ufl@ucn.dk.
authors.forename: Uffe
authors.initials: U
authors.lastname: Laessoe
authors.affiliation: Department of Orthopaedic Surgery, Aalborg University Hospital, Denmark; Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark. Electronic address: sten.rasmussen@rn.dk.
authors.forename: Sten
authors.initials: S
authors.lastname: Rasmussen
authors.affiliation: Center for Neuroplasticity and Pain (CNAP), SMI, Department of Health Science and Technology, Faculty of Medicine, Aalborg University, Denmark. Electronic address: tgn@hst.aau.dk.
authors.forename: Thomas
authors.initials: T
authors.lastname: Graven-Nielsen
authors.affiliation: Department of Orthopaedic Surgery, Aalborg University Hospital, Denmark. Electronic address: cbe@rn.dk.
authors.forename: Christian
authors.initials: C
authors.lastname: Berre Eriksen
authors.affiliation: Department of Orthopaedic Surgery, Aalborg University Hospital, Denmark. Electronic address: rae@rn.dk.
authors.forename: Rasmus
authors.initials: R
authors.lastname: Elsoe
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D005594:Fracture Fixation, Intramedullary; D005684:Gait; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D013978:Tibial Fractures / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult
keywords: Function; Gait; Intramedullaty nailing; Tibial shaft fracture