Joint awareness after ACL reconstruction: patient-reported outcomes measured with the Forgotten Joint Score-12

Knee Surg Sports Traumatol Arthrosc. 2017 May;25(5):1454-1460. doi: 10.1007/s00167-016-4357-x. Epub 2016 Oct 19.


Purpose: To measure joint awareness in patients who have undergone anterior cruciate ligament (ACL) reconstruction and to investigate medium- and long-term results of the procedure.

Methods: All patients who had undergone ACL reconstruction with the same arthroscopic surgical technique at our institution between 2011 and 2014 (medium-term follow-up group (Group I)) or between 2000 and 2005 (long-term follow-up group (Group II)) were considered for inclusion in the study. A group of healthy controls were recruited to obtain reference values for the FJS-12 (Forgotten Joint Score-12). Propensity score matching was applied to improve comparability of patients and healthy controls in terms of sex and age.

Results: Fifty-eight patients of the Group I (mean follow-up 31.5 (SD13.4) months, range 12-54), 57 patients of the Group II (mean follow-up 139 (SD15.2) months, range 120-179), and the healthy control samples (100 individuals) were analysed. Significantly lower FJS-12 was found in both groups (Group I: 71.6 and Group II: 70.1), compared to the two matched control groups (88.1 and 90.0).

Conclusions: The concept of joint awareness was successfully applied to evaluate medium- and long-term results of ACL reconstruction. The clinical relevance of this study is that it extends the construct of joint awareness as a patient-reported outcome parameter to ACL reconstruction surgery.

Level of evidence: Level III.

Keywords: ACL reconstruction; Forgotten Joint Score-12 (FJS-12); Joint awareness; Patient-reported outcomes (PROs).

MeSH terms

  • Adolescent
  • Adult
  • Anterior Cruciate Ligament / surgery
  • Anterior Cruciate Ligament Injuries / psychology*
  • Anterior Cruciate Ligament Injuries / rehabilitation
  • Anterior Cruciate Ligament Injuries / surgery*
  • Anterior Cruciate Ligament Reconstruction / psychology*
  • Anterior Cruciate Ligament Reconstruction / rehabilitation*
  • Arthroscopy
  • Awareness
  • Female
  • Humans
  • Knee Joint / surgery
  • Male
  • Middle Aged
  • Patient Reported Outcome Measures
  • Perception
  • Treatment Outcome
  • Young Adult