Job E Scherer1, Maarten H Moen2, Adam Weir3, Sandor L Schmikli4, Rob Tamminga5, Henk van der Hoeven6. 1. VU University Medical Center, Department of Orthopaedic Surgery, Amsterdam, The Netherlands; Bergman Clinics, Department of Orthopedic Surgery and Sports Medicine, Naarden, The Netherlands. 2. Bergman Clinics, Department of Orthopedic Surgery and Sports Medicine, Naarden, The Netherlands; The Sportsphysician Group, St. Lucas Andreas Hospital, Amsterdam, The Netherlands. Electronic address: m.moen@bergmanclinics.nl. 3. Aspetar Orthopaedic and Sports Medicine Hospital, Department of Sport Medicine, Qatar. 4. University Medical Center Utrecht, Department of Public Health and Medicine, Utrecht, The Netherlands. 5. Medicort Sports and Orthopedic Care, Utrecht/Naarden, The Netherlands. 6. Bergman Clinics, Department of Orthopedic Surgery and Sports Medicine, Naarden, The Netherlands.
Abstract
BACKGROUND: In the past, several studies investigated factors that are prognostic or associated with outcome after anterior cruciate ligament (ACL) reconstruction. A recent review showed that only limited evidence is available for most studied factors, and that insufficient analysis methods were used commonly. Therefore, the aim of this study was to add more weight to the existing evidence, about factors that are associated with a more rapid outcome after ACL reconstruction. The second aim was to use multivariate analysis to study the possible factors independently. METHODS: A cohort study was conducted with a follow-up of six months. Before surgery, patient variables were scored. Surgical variables were scored during arthroscopic ACL reconstructions with a single-bundle technique and hamstring autograft. The Lysholm score and subscales of the Knee Injury Osteoarthritis Outcome Score (KOOS) were assessed six months post surgery. A multiple analysis of variance (ANOVA) model was used to identify prognostic factors for outcome. RESULTS: In total, 118 patients were included. Patients, aged ≤30years, with a subjective knee score ≥ six, with normal flexion range of motion (ROM) of the knee, with flexion and extension strength deficit of ≤20%, and those with no previous knee surgery in the same knee at baseline scored significantly higher on outcome after multivariate analysis. No significant effect of surgical factors could be found. CONCLUSION: Younger age, higher subjective knee score, normal knee flexion, normal knee flexion and extension strength, and no previous knee surgery in the patients' history at baseline are associated with a more rapid recovery after ACL reconstruction. LEVEL OF EVIDENCE: Level III, prognostic study.
BACKGROUND: In the past, several studies investigated factors that are prognostic or associated with outcome after anterior cruciate ligament (ACL) reconstruction. A recent review showed that only limited evidence is available for most studied factors, and that insufficient analysis methods were used commonly. Therefore, the aim of this study was to add more weight to the existing evidence, about factors that are associated with a more rapid outcome after ACL reconstruction. The second aim was to use multivariate analysis to study the possible factors independently. METHODS: A cohort study was conducted with a follow-up of six months. Before surgery, patient variables were scored. Surgical variables were scored during arthroscopic ACL reconstructions with a single-bundle technique and hamstring autograft. The Lysholm score and subscales of the Knee Injury Osteoarthritis Outcome Score (KOOS) were assessed six months post surgery. A multiple analysis of variance (ANOVA) model was used to identify prognostic factors for outcome. RESULTS: In total, 118 patients were included. Patients, aged ≤30years, with a subjective knee score ≥ six, with normal flexion range of motion (ROM) of the knee, with flexion and extension strength deficit of ≤20%, and those with no previous knee surgery in the same knee at baseline scored significantly higher on outcome after multivariate analysis. No significant effect of surgical factors could be found. CONCLUSION: Younger age, higher subjective knee score, normal knee flexion, normal knee flexion and extension strength, and no previous knee surgery in the patients' history at baseline are associated with a more rapid recovery after ACL reconstruction. LEVEL OF EVIDENCE: Level III, prognostic study.
Authors: Astrid Vereijken; Inne Aerts; Jorrit Jetten; Bruno Tassignon; Jo Verschueren; Romain Meeusen; Emiel van Trijffel Journal: J Sports Sci Med Date: 2020-08-13 Impact factor: 2.988
Authors: Mikołaj Wypych; Robert Lundqvist; Dariusz Witoński; Rafał Kęska; Anna Szmigielska; Przemysław T Paradowski Journal: Open Med (Wars) Date: 2021-05-29