Quality of life and knee function in patients with knee dislocation

Abstract

Background: Knee dislocations are uncommon (<0.5% of all dislocations); however, they may result in catastrophic outcomes secondary to their high-energy nature and neurovascular injuries. Objectives: The objective of this study was to evaluate the clinical outcome of knee dislocation management. Subjects and Methods: A total of 20 consecutive adult patients with knee dislocation were enrolled in this cross-sectional study between 2011 and 2014. A single knee surgeon examined all the patients for knee instability for subjective evaluation of knee function using the Lysholm Knee Questionnaire, Knee Society Score (KSS), and Short Form-36 (SF-36). Results: The average Lysholm Knee Scores and KSS were 68 (range: 18–100) and 65 (range: 15–97), respectively. All domains of SF-36 among the studied patients were lower than that of the normal population. We could not find any correlation between age, body mass index, and interval between initial trauma and operation with outcome variables (Lysholm Knee Score, KSS, and SF-36 Physical Component Score, and SF-36 Mental Component Score). Conclusions: The knee function after proper management of dislocation is reasonable, but prolonged course of management and multiple operations may decrease the patients' quality of life.

Keywords

• knee dislocation
• knee function
• quality of life