Does age predict outcome after multiligament knee reconstruction for the dislocated knee? 2- to 22-year follow-up.
OBJECTIVE
The purpose of this study is to determine whether age is a predictor of clinical and functional outcomes in patients who sustained a knee dislocation (KD) and underwent multiligament knee reconstruction. It was hypothesized that increasing age will negatively affect patient outcome.


METHODS
In total, 125 multiligament knee injuries (MLKI) associated with KD were surgically reconstructed between 1992 and 2013 and evaluated with IKDC and Lysholm scores at a median follow-up of 5 (range 2-22) years. Patient demographics including age were then analysed with respect to IKDC and Lysholm scores using rank sums and pair-wise rank sums analysis for continuous variables and Chi-square analysis for categorical variables.


RESULTS
In total, 125 patients (96 males and 29 females) with a median age of 31 (range 11-62) years at the time of surgery were included. At final follow-up, patients ≤30 years old compared to >30 years old obtained higher IKDC (73.3 vs. 61.9; p = 0.01) and Lysholm scores (76.9 vs. 68.5; p = 0.04). No confounding variables including gender, injury mechanism, injury pattern, injuries to the peroneal nerve, popliteal artery, meniscus, or cartilage accounted for differences in outcome scores between the two groups.


CONCLUSIONS
Based on current available literature, this study represents the largest cohort with the longest follow-up reported on MLKI to date. At intermediate- to long-term follow-up, patients >30 years of age that undergo multiligament knee reconstruction for KD have inferior IKDC and Lysholm scores compared to those ≤30 years of age. However, successful multiligament knee reconstruction can still be obtained in this age group.


METHODS
IV.
Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First St., SW, Rochester, MN, 55905, USA.
Nate M
NM
Levy
Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First St., SW, Rochester, MN, 55905, USA.
Aaron J
AJ
Krych
Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First St., SW, Rochester, MN, 55905, USA.
Mario
M
Hevesi
Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First St., SW, Rochester, MN, 55905, USA.
Patrick J
PJ
Reardon
Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First St., SW, Rochester, MN, 55905, USA.
Ayoosh
A
Pareek
Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First St., SW, Rochester, MN, 55905, USA.
Michael J
MJ
Stuart
Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First St., SW, Rochester, MN, 55905, USA. Levy.Bruce@mayo.edu.
Bruce A
BA
Levy
D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D005544:Forecasting; D006801:Humans; D031221:Knee Dislocation / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D007718:Knee Injuries / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019637:Orthopedic Procedures / Q000379:methods*; D016059:Range of Motion, Articular / Q000502:physiology*; D019651:Plastic Surgery Procedures / Q000379:methods*; D016896:Treatment Outcome; D055815:Young Adult
Age; Knee dislocation; Knee reconstruction; Multiligament knee injury