ArticleSkeletal radiology2019
The lateral joint space width can be measured reliably with Telos valgus stress radiography in medial knee osteoarthritis.
Article in Skeletal radiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 9 citations in OpenAlex.
- Extension stress radiographs for coronal laxity assessment in revision TKA: high reliability and increased valgus laxity in this population.Archives of orthopaedic and trauma surgery · 2025Article
- Functional preoperative assessment of coronal knee laxity better predicts postoperative patient outcomes than intraoperative surgeon-defined laxity in total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Valgus stress radiographs have a minor additional value in detecting lateral cartilage wear when selecting patients for medial partial knee replacement.Archives of orthopaedic and trauma surgery · 2024Article
- Varus-valgus native knee laxity in extension displays an almost rectangular pattern and does not correlate with lower limb alignment.PloS one · 2024Article
- Review
- The Rosenberg view and coronal stress radiographs give similar measurements of articular cartilage height in knees with osteoarthritis.Archives of orthopaedic and trauma surgery · 2022Article
- An MRI-compatible varus-valgus loading device for whole-knee joint functionality assessment based on compartmental compression: a proof-of-concept study.Magma (New York, N.Y.) · 2020Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
objectiveTo examine the reproducibility of valgus stress radiographs with the Telos stress device for assessment of lateral compartment degenerative changes in patients with medial osteoarthritis of the knee. MATERIALS AND
methodsA prospective reliability study was performed. Seventy-nine patients (80 knees) were included, and standardized valgus stress radiographs were obtained using the Telos stress device. Osteophytes and joint space narrowing (JSN) were graded using the OARSI (Osteoarthritis Research Society International) classification, and the joint space width (JSW) was measured in millimeters. Reproducibility was determined as intra-and inter-rater reliability and test-retest reliability. Weighted kappa was used to determine the reliability of osteophyte and JSN grading, and the intra-class correlation coefficient for JSW.
resultsGrading of osteophytes had an intra- and inter-rater reliability ranging from 0.40 to 0.83 on the medial side and ranging from 0.39 to 0.87 on the lateral side. Grading of medial JSN had an intra- and inter-rater reliability ranging from 0.62 to 0.84, and grading of lateral JSN had an intra- and inter-rater reliability ranging from 0.32 to 0.65. Intra- and inter-rater reliability of JSW ranged from 0.84 to 0.98 on the medial side, and from 0.59 to 0.89 on the lateral side. Test-retest reliability of JSW of the medial and lateral side ranged from 0.69 to 0.92.
conclusionsStandardized valgus stress radiographs taken with the Telos stress device are a reliable supplement in the assessment of medial OA of the knee. Evaluation of the lateral compartment on valgus stress radiographs is most reliable with measurement of the lateral JSW.
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