Filbay S, Gauffin H, Andersson C, et al. - According to this exploratory study, hamstrings strength limb symmetry index (LSI) < 90% was a prognostic factor for patellofemoral joint (PFJ)-SOA [knee symptoms plus radiographic osteoarthritis (ROA)].

• When compared with early anterior cruciate ligament (ACL)-repair, ACL treatment with rehabilitation alone was linked to an 80% reduction in the likelihood of PFJ-SOA.

• One hundred twenty-seven patients were aged 58 ± 6 years; BMI 27 ± 4 kg/m ²; 28% female; 59% had TFJ-ROA, 48% had TFJ-SOA (including n = 9 knee-arthroplasties), 36% had PFJ-ROA, and 27% had PFJ-SOA.

• The authors discovered that baseline meniscus surgery was a prognostic factor for TFJ-ROA (multivariable age-adjusted odds ratio: 3.0 (1.2, 7.8)). For PFJ-ROA (5.1 (1.4, 18.7)) and PFJ-SOA (4.9 (1.2, 19.7)), a single-leg-hop LSI < 90% was a prognostic factor.