Objective
To study the activity and incidence of knee pain after sustaining a isolated tibia fracture treated with an infrapatellar intramedullary nail at one year.
Design
Retrospective review of prospective cohort
Setting
Multicenter Academic and Community hospitals
Patients
437 patients with an isolated tibia fracture completed a 12 month assessment on pain and self-reported activity.
Intervention
Infrapatellar Intramedullary Nail
Outcomes
Demographic information co-morbid conditions, injury characteristics, and surgical technique were recorded. Knee pain was defined on a 1-7 scale with 1 being “no pain” and 7 being a “very great deal of pain.” Knee pain > 4 was considered clinically significant. Patients reported if they were “able”, “able with difficulty” or “unable” to perform the following activities: kneel, run, climb stairs, and walk prolonged. Variables were tested in multilevel multivariable regression analyses.
Results
Knee Pain: 11% percent of patients reported a “good deal” to a “very great deal” of pain (> 4). 52% of patients reported “no” or “very little” pain at 12 months. Activity at 12 months: 26% and 29% of patients were unable to kneel or run, respectively. 31% and 35% of patients respectively stated they were able with difficulty or unable to use stairs or walk.
Conclusion
Clinically significant knee pain (>4/7) was present in 11% of patients one year after a tibia fracture. 31%-71% of patients had difficulty performing or were unable to perform routine daily activities of kneeling, running, and stair climbing or walking prolonged distances.