Strain ratio measurement of femoral cartilage by real-time elastosonography: preliminary results

Çay, Nurdan; İpek, Ali; Işık, Çetin; Ünal, Özlem; Kartal, Merve Gülbiz; Arslan, Halil; Bozkurt, Murat

doi:10.1007/s00330-014-3497-y

Cited by 13 publications

(24 citation statements)

References 22 publications

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“…Mean values of three successive measurements for each site were noted. [16,19] The same sonographer who was blinded to the subjects' data performed all the US and sonoelastographic examinations. For intraobserver reliability, measurements were repeated in two sessions with an interval of at least two hours.…”

Section: Methodsmentioning

confidence: 99%

“…[15] In a recent study, it has been reported that healthy and pathologic cartilages can be differentiated by measuring strain ratios using real-time sonoelastography. [16] Since the results of studies reporting the effects of ACL reconstruction on cartilage degenerative changes were contradictory, [1,[7][8][9][10] there is still a need for a cartilage structure-screening tool in ACL reconstructed patients. We hypothesized that sonoelastography may be a useful method to detect the early changes in cartilage tissue stiffness after ACL reconstruction.…”

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confidence: 99%

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Sonoelastographic evaluation of the distal femoral cartilage in patients with anterior cruciate ligament reconstruction

Akkaya

Gungor

et al. 2016

Eklem Hastalik Cerrahisi

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ÖZAmaç: Bu çalışmada ön çapraz bağ (ÖÇB) tamiri yapılan hastalarda distal femoral kıkırdağın sonoelastografik özellikleri değerlendirildi. Hastalar ve yöntemler: Tek taraflı ÖÇB tamiri yapılan 28 hastanın (27 erkek, 1 kadın, ort. yaş 31.7±7.1 yıl; dağılım 22-48 yıl) demografik özellikleri ve ameliyat verileri değerlendirildi. Yirmi iki hastada (%78.6) patellar tendon grefti ve altı hastada (%21.4) hamstring tendon grefti ile tamir uygulandı. Fonksiyonel değerlendirme için Lysholm diz skoru ve alt ekstremite gücü için sandalyeye oturma kalkma testi kullanıldı. Ameliyat edilen dizler ve sağlıklı dizlerde medial, interkondiler ve lateral distal femoral kıkırdak kalınlıkları B-mod ultrasonografi, gerilim oranları ise gerçek zamanlı sonoelastografi ile ölçüldü. Bulgular: Ameliyat sonrası ortalama takip süresi 20.4±9.8 ay idi. Ortalama Lysholm diz ve hasta memnuniyeti skorları sırasıyla 88.0±8.5 ve 8.2±1.8 idi. Kıkırdak kalınlıkları ameliyatlı ve sağlıklı dizler arasında benzerdi (tamamı p>0.05). Ameliyatlı dizlerde medial distal femoral kıkırdağın sonoelastografik gerilim oranı anlamlı olarak yüksek idi (daha yumuşak kıkırdak) (p= 0.026). Ameliyatlı dizlerde medial kıkırdak gerilim oranı farklılığı ile alt ekstremite kas gücü arasında negatif korelasyon vardı (p= 0.009, r= -0.487). Sonuç: B-mod ultrasonografi ile değerlendirildiğinde ameliyatlı ve sağlıklı dizler arasında kıkırdak kalınlığı açısından farklılık olmasa da ameliyatlı taraflarda medial distal femoral kıkırdakta sonoelastografik gerilim oranı değişikliklerinin saptanması ÖÇB tamirini takiben erken yapısal değişikliklere işaret ediyor olabilir. Kıkırdak yapısındaki değişiklikler ile sonoelastografi özellikleri arasındaki bu ilişkinin klinik etkilerinin açığa çıkarılması için ileri çalışmalara ihtiyaç vardır.Anahtar sözcükler: Ön çapraz bağ; distal femoral kıkırdak; elastografi; gerilim oranı; ultrason. ABSTRACT Objectives:This study aims to evaluate sonoelastographic properties of the distal femoral cartilage in patients with anterior cruciate ligament (ACL) reconstruction. Patients and methods: Demographic characteristics and operative data of 28 patients (27 males, 1 female; mean age 31.7±7.1 years; range 22 to 48 years) with unilateral ACL reconstruction were evaluated. Reconstruction was performed with patellar tendon graft in 22 patients (78.6%) and hamstring tendon graft in six patients (21.4%). Lysholm knee score was used for functional evaluation and chair stand test was used for lower extremity strength. Medial, intercondylar, and lateral distal femoral cartilage thicknesses of operated knees and healthy knees were measured with B-mode ultrasound, while strain ratios were measured with real time sonoelastography. Results: Postoperative mean follow-up duration was 20.4±9.8 months. Mean Lysholm knee and patient satisfaction scores were 88.0±8.5 and 8.2±1.8, respectively. Cartilage thicknesses were similar between operated and healthy knees (all p>0.05). Sonoelastographic strain ratio of medial distal femoral cartilage in operated knees was significa...

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Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Sonoelastographic evaluation of the distal femoral cartilage in patients with anterior cruciate ligament reconstruction

Akkaya

Gungor

et al. 2016

Eklem Hastalik Cerrahisi

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“…There have been a few cartilage imaging studies using real‐time elastosonography (RTE), which has increased in importance and range of use during recent years (De Maeseneer et al, ; Saarakkala et al, ; Akkaya et al, ). Real‐time elastosonography, which is used to measure the elasticity of tissues, successfully differentiates hard from soft tissues (Castriota‐Scanderbeg et al, ; Lee et al, ), and it has been reported that cartilage, a very hard structure, loses its hardness in pathological areas (Disler et al, ; Kaleva et al, ; Saarakkala et al, ; Cay et al, ).…”

Section: Introductionmentioning

confidence: 99%

“…Real-time elastosonography, which is used to measure the elasticity of tissues, successfully differentiates hard from soft tissues (Castriota-Scanderbeg et al, 1996;Lee et al, 2008), and it has been reported that cartilage, a very hard structure, loses its hardness in pathological *Correspondence to: Murat Bozkurt, Department of Orthopedics and Traumatology, Ankara Yildirim Beyazit University, Ankara 06800, Turkey. E-mail: nmbozkurt@gmail.com areas (Disler et al, 2000;Kaleva et al, 2011;Saarakkala et al, 2012;Cay et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Sonoelastography of the knee joint

et al. 2018

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Magnetic resonance imaging (MRI) is generally the preferred method for assessing lesions of the knee cartilage and subchondral bone. There have been a few cartilage imaging studies using real‐time elastosonography (RTE), which has increased in importance and range of use in recent years. The aim of this cadaveric study was to assess the efficacy of a new diagnostic method combining USG and RTE and also to perform intra‐articular examinations together with arthroscopy. A total of 12 fresh unpaired human knees were examined. The laparoscopic ultrasound transducer was deployed using standard anteromedial and anterolateral arthroscopic portals. Iatrogenic defects were examined using mosaicplasty tools in healthy‐looking areas of cartilage, and strain in those areas was measured using RTE. The median strain value of the pathological femoral cartilage region was significantly higher than that of the normal cartilage region (1.23 [0.71–2.24] vs. 0.01 [0.01–0.01], P = 0.002, respectively). Arthroscopic study of cartilage using RTE can be a guide for orthopedic surgeons and use of intra‐articular probes could be universalized. Clin. Anat. 32:99–104, 2019. © 2018 Wiley Periodicals, Inc.

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“…Some studies [Akaya et al and Cay et al] considered the knee joint by elastography, however, both dealt with the femoral condyle cartilage and both were done by the strain type. [19,20] Only one study was found in the literature was reported to study the knee menisci by SWE. Park et al studied five healthy volunteers revealing comparable results to our study, with a mean stiffness of the medial meniscus (30.6 ± 3.5 kPa), and lateral meniscus stiffness (23.3 ± 3.1 kPa), compared to (24.86 kPa ± 6.35 SD) at the right anterior horn medial meniscus, and (23.86 kPa ± 4.49) at the left anterior horn medial meniscus, in our study.…”

Section: Discussionmentioning

confidence: 99%

Shearwave elastography of the knee menisci

Bedewi

Elsifey

Saleh

et al. 2020

Preprint

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Objectives: Sonoelastography is a relatively new technique used to evaluate the musculoskeletal system, but shear wave elastography of the knee menisci has not previously been reported. The purpose of this study is to study sonoelastographic features of the knee menisci. Methods: 34 knee joints were studied, in 17 healthy subjects. Shear wave elastography was used to evaluate the anterior horn of the medial meniscus. Normal sonoelastographic values were obtained. Results: The mean shear elastic modulus of the anterior horn of the right medial meniscus was 24.86 kPa (range 15.3- 36.1 ±6.35 SD), and 23.86 kPa (range14.6-37.6 ± 4.49 SD) for the anterior horn of the left medial meniscus. Inverse correlation was noted between the right medial meniscus elasticity and height. Inverse correlation was noted between the left medial meniscus elasticity and age, while positive correlation was noted between left medial meniscus elasticity and BMI. Conclusion: The elastic modulus of the knee menisci has been determined in healthy subjects and can serve as a reference when studying pathological conditions of these structures .

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Strain ratio measurement of femoral cartilage by real-time elastosonography: preliminary results

Cited by 13 publications

References 22 publications

Sonoelastographic evaluation of the distal femoral cartilage in patients with anterior cruciate ligament reconstruction

Sonoelastographic evaluation of the distal femoral cartilage in patients with anterior cruciate ligament reconstruction

Sonoelastography of the knee joint

Shearwave elastography of the knee menisci

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