ArticleThe open orthopaedics journal2016
Spontaneous Osteonecrosis of the Knee: A Retrospective Analysis by Using MRI and DEXA.
Article in The open orthopaedics journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Association between low bone mineral density and subchondral insufficiency fractures of the knee in women, and influence of radial meniscal root tears.Diagnostic and interventional imaging · 2026Article
- Subchondral insufficiency fracture of the knee: progress in the pathogenesis and treatment.Frontiers in surgery · 2025Review
- Subchondral insufficiency fracture of the medial femoral condyle treated conservatively with early non-weightbearing.Radiology case reports · 2024Article
- Treatment of spontaneous osteonecrosis of the knee by daily teriparatide: A report of 3 cases.Medicine · 2020Article
- Diagnostic issue on spontaneous osteonecrosis of medial tibial plateau.Chinese medical journal · 2019Article
- Spontaneous osteonecrosis of the knee (SONK): The role of MR imaging in predicting clinical outcome.Journal of orthopaedicsArticle
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4 authors.
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Abstract
objectiveAlthough there are many etiology and prediction for prognosis of spontaneous osteonecrosis of the knee (SONK) by using radiological examinations, these issue have not been clarified yet. Furthermore, most of the studies evaluated them by only radiological examination such as magnetic resonance imaging (MRI), bone mineral density (BMD) in dual-energy X-ray abosorptiometry (DEXA) or plain X-ray. Therefore, we focused our investigation on the measurements of the affected área in MRI and BMD in DEXA, and whether these results were conected with the cause and prognosis of SONK or not.
methodA consecutive case series of two groups composed of ten osteoporotic patients who were suffering from SONK was considered. Based on the severity or duration of pain, one group was treated with surgical procedure which was unicompartmental knee arthroplasty (UKA), the other received conservative treatment. Both groups underwent DEXA in their distal fêmur and próximal tíbia and all patients who took MRI measured the affected lesion in low and high intensity área on T2 weighted images. This data was analyzed from these areas and units.
resultsSignificant decrease in regional boné density of the affected femoral condyle compared to the unaffected side was observed. However, the boné mineral density in the affected side was similar in the non-operative and surgical group. The área of the lesion which showed in both low and high intensity indicated that the operation group was significantly larger than the conservative group on T2 weighted images.
conclusionThe cause and prognosis of SONK have a close relationship with the size of the affected lesion and decreased boné mineral density.
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