The 6-m timed hop test is a prognostic factor for outcomes in patients with meniscal tears treated with exercise therapy or arthroscopic partial meniscectomy: a secondary, exploratory analysis of the Odense–Oslo meniscectomy versus exercise (OMEX) trial

Abstract

Purpose: To identify prognostic factors for two-year patient-reported outcomes in middle-aged patients with degenerative meniscal tears treated with exercise therapy (ET) or arthroscopic partial meniscectomy (APM). Methods: One hundred and seven patients, with mean age 49.6 (SD 6.2) years and BMI 25.7 (SD 3.7), were included in this analysis of data from the OMEX trial (www.clinicaltrials.gov NCT01002794). Linear and Poisson regression models were built to explore associations between potential prognostic factors (patient characteristics, knee function-related and disease-related factors) and two-year patientreported outcomes: the Knee Injury and Osteoarthritis Outcome Score (KOOS) subscales Pain, Symptoms, ADL, Sport/Rec, QoL and 5-point Global Rating of Change scales for knee pain (GRC Pain) and function (GRC Function). Analyses were performed for the whole cohort and for the two treatment groups (n=55 and 52) with adjustments for age, sex, BMI and baseline KOOS. Results: For the whole cohort, a one-second better baseline six-meter timed hop test result was associated with 3.1-7.1 points better two-year scores for all KOOS subscales (95% CIs 1.1-5.2 to 4.1-10.1 points). A 1.61 to 2.80 s better test was associated with scores equivalent to previously calculated clinical relevant differences for each KOOS subscale. For the groups of patients treated with ET and APM respectively, 2.09-3.60 s and 0.63-1.99 s better tests were associated with clinical relevant differences. For the whole cohort, a one-second better test was associated with 26% (95% CI 15-38%) and 22% (95% CI 11-34%) higher possibility for better or much better GRC Pain and Function scores. Patients treated with ET had 17% (95% CI 2-33%) increased possibility for better or much better GRC Pain score, and patients treated with APM had 65% (95% CI 32-108%) and 70% (95% CI 38-109%) increased possibility for better or much better GRC Pain and Function scores. Conclusions: The six-meter timed hop test result was a significant prognostic factor for two-year patient-reported outcomes in middle-aged patients with degenerative meniscal tears, especially in those treated with APM.

On a Trajectory for Success—9 in Every 10 People With a Degenerative Meniscus Tear Have Improved Knee Function Within 2 Years After Treatment: A Secondary Exploratory Analysis of a Randomized Controlled Trial

“…35,36 In cohort studies, poorer functional performance, lower activity level, larger meniscus excision, meniscal extrusion, and radiographic knee osteoarthritis are prognostic factors for worse outcomes. 9,19,21 These data suggest that there are subgroups of individuals with poor outcomes.U OBJECTIVE: To identify trajectories of patient-reported knee function over 5 years in patients with degenerative meniscal tears, and to explore whether baseline characteristics were associated with trajectories of sport and recreational function.U DESIGN: Prospective cohort study.U METHODS: We conducted a secondary exploratory analysis of the Odense-Oslo Meniscectomy Versus Exercise randomized controlled trial. Patient-reported knee function was assessed with the Knee injury and Osteoarthritis Outcome Score (KOOS) at baseline, 3 months, 1 year, 2 years, and 5 years.…”

“…35,36 In cohort studies, poorer functional performance, lower activity level, larger meniscus excision, meniscal extrusion, and radiographic knee osteoarthritis are prognostic factors for worse outcomes. 9,19,21 These data suggest that there are subgroups of individuals with poor outcomes.…”

Osteoarthritis year in review 2019: mechanics

“…At a 5-year follow up, radiographic signs of OA were found in 9 of 76 individuals, and these individuals compared to those who did not develop OA had performed worse on two unilateral hop tests (single leg hop for distance and the 6 m timed hop test) conducted at baseline (ES ¼ 1.33 and 1.21, respectively), and after 10 physical therapy sessions (ES ¼ 1.36 and 1.70, respectively). Kise et al followed a large cohort of middle-aged adults with degenerative meniscal tears over 2 years 65 . Better baseline performance on the 6 m timed hop test was related to better improvement on all KOOS subscales at the 2-year follow up (1-s faster equated to 3-to 7-point improvements across all subscales).…”

Test UHCJ20m—Measurement Procedure Standardization and Metric Characteristics Determination

“…However, we have found that the available research studies have not investigated the issue of unilateral horizontal jumps to any great extent. The most common unilateral horizontal jumps investigated were the unilateral horizontal countermovement jump— HCMJ [ 20 , 29 , 31 , 32 ], the 6 m timed hop test [ 33 , 34 , 35 , 36 ], the unilateral standing horizontal jump— SLJ [ 26 , 37 , 38 ], the unilateral standing drop horizontal jump— SLDJ [ 39 ], the standing triple horizontal jump— TLJ [ 26 , 29 , 37 , 38 , 40 ], standing five jumps— SFJ [ 41 ], standing ten jumps— STJ [ 41 ], and unilateral 30 m horizontal cyclic jumps— UHCJ30m [ 42 ].…”

“…By reviewing the available published research studies, the only thing that was found was some mentions of similar motor tests, in which the performance was expressed in time units. These motor tests were the 6 m timed hop test [ 33 , 34 , 35 , 36 ] and the UHCJ30m [ 42 ]. The 6 m timed hop test is used in the field of medicine in the evaluation of patients’ recovery after anterior cruciate ligament surgery, and no papers have been found in the literature confirming the use of the test in sports.…”