ArticleArchives of orthopaedic and trauma surgery2022
The subjective knee value is a valid single-item survey to assess knee function in common knee disorders.
Article in Archives of orthopaedic and trauma surgery, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 18 citations in OpenAlex.
- Percutaneous compression screw fixation for hinge fractures in distal femoral osteotomy does not compromise radiographic or clinical outcomes: A retrospective case-control study.Journal of experimental orthopaedics · 2026Article
- Measurement properties of the Thai version of Simple Knee Value in patients with anterior cruciate ligament injury.Asia-Pacific journal of sports medicine, arthroscopy, rehabilitation and technology · 2026Article
- Prospective comparative analysis from pre- to postoperative changes in Single Assessment Numeric Evaluation (SANE) for patellofemoral instability.Journal of experimental orthopaedics · 2026Article
- Introducing the Subjective Knee Value for Daily Activity (SKV-d) and Sport (SKV-s) as Single-Item Measures to Assess Knee Function in Athletes.Orthopaedic journal of sports medicine · 2026Article
- Validation of the subjective spine value in patients with adult idiopathic scoliosis.Archives of orthopaedic and trauma surgery · 2025Article
- Establishing Threshold Values for the Patient Acceptable Symptom State After Anterior Cruciate Ligament Reconstruction for the Self Knee Value and the Anterior Cruciate Ligament-Return to Sport after Injury Scale.Orthopaedic journal of sports medicine · 2025Article
- Emerging concepts and challenges in the development of disease-modifying osteoarthritis drugs - a more refined perspective.Archives of pharmacal research · 2025Review
- The subjective hip value: a retrospective validation study in primary total hip arthroplasty.Arthroplasty (London, England) · 2025Article
- Comparison of a Single Assessment Numeric Evaluation Method and the Banff Patella Instability Instrument 2.0 for Patients With Patellofemoral Instability.Orthopaedic journal of sports medicine · 2024Article
- Article
- Validation of the Subjective Spine Value: A new single item score for the assessment of spine-specific function.Archives of orthopaedic and trauma surgery · 2023Article
- Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe patient's perspective plays a key role in judging the effect of knee disorders on physical function. We have introduced the Subjective Knee Value (SKV) to simplify the evaluation of individual's knee function by providing one simple question. The purpose of this prospective study was to validate the SKV with accepted multiple-item knee surveys across patients with orthopaedic knee disorders. MATERIALS AND
methodsBetween January through March 2020, consecutive patients (n = 160; mean age 51 ± 18 years, range from 18 to 85 years, 54% women) attending the outpatient clinic for knee complaints caused by osteoarthritis (n = 69), meniscal lesion (n = 45), tear of the anterior cruciate ligament (n = 23) and focal chondral defect (n = 23) were invited to complete a knee-specific survey including the SKV along with the Knee Injury Osteoarthritis Outcome Score (KOOS) and the International Knee Documentation Committee subjective knee form (IKDC-S). The Pearson correlation coefficient was used to evaluate external validity between the SKV and each patient-reported outcome measure (PROM) separately. Furthermore, patient's compliance was assessed by comparing responding rates.
resultsOverall, the SKV highly correlated with both the KOOS (R = 0.758, p < 0.05) and the IKDC-S (R = 0.802, p < 0.05). This was also demonstrated across all investigated diagnosis- and demographic-specific (gender, age) subgroups (range 0.509-0.936). No relevant floor/ceiling effects were noticed. The responding rate for the SKV (96%) was significantly higher when compared with those for the KOOS (81%) and the IKDC-S (83%) (p < 0.05).
conclusionAt baseline, the SKV exhibits acceptable validity across all investigated knee-specific PROMs in a broad patient population with a wide array of knee disorders. The simplified survey format without compromising the precision to evaluate individual's knee function justifies implementation in daily clinical practice. LEVEL OF EVIDENCE: II, cohort study (diagnosis).
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