Sensitivity of Routine 1.0-Tesla Magnetic Resonance Imaging Versus Arthroscopy as Gold Standard in Fresh Traumatic Chondral Lesions of the Knee in Young Adults

Kuikka, Paavo-Ilari; Kiuru, Martti J.; Niva, Maria H.; Kröger, Heikki; Pihlajamäki, Harri

doi:10.1016/j.arthro.2006.06.021

Cited by 22 publications

(15 citation statements)

References 25 publications

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“…Because MRI detects subchondral changes, more superficial lesions are less likely to be imaged [25]. Other MRI factors that may affect accuracy include the type of sequence [5,16,17,27], power of the magnet [11,12,26], and positioning [21]. The articular cartilage in the ankle is thinner than in the knee [23], there is close tibiotalar apposition, and the bony anatomy is more complex, all of which could complicate accurate observation of chondral lesions by MRI in the ankle as compared with the knee.…”

Section: Discussionmentioning

confidence: 99%

Is MRI Adequate to Detect Lesions in Patients with Ankle Instability?

O’Neill

Aman

Guyton

2010

Clinical Orthopaedics &Amp; Related Research

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Background Chondral lesions, peroneal tendon tears, and other disorders in patients with chronic ankle instability may not be detected by preoperative MRI. Also, MRI often is obtained and interpreted at the referring institution, leading to variability in reading. Questions/PurposesWe assessed the accuracy of the radiologists' and orthopaedic surgeon's reading of preoperative MRI for diagnosing ankle lesions in patients with ankle instability warranting surgery. Patients and Methods We retrospectively reviewed 133 patients who underwent 135 surgeries for lateral ankle ligament reconstruction with concomitant ankle arthroscopy and who had preoperative MRI. Results We found 72 associated lesions in 66 of the 135 surgeries, including 38 chondral injuries, 18 peroneus brevis tears, seven loose bodies, and nine other miscellaneous abnormalities. Eliminating eight lesions for which the decision to operate was not based on operative findings, there were 127 surgeries with 64 associated lesions that required intraoperative confirmation or were detected intraoperatively. In the original reports, the radiologists identified 39% (15) of the chondral injuries, 56% (10) of the peroneal tears, and 57% (four) of the loose bodies. Radiologists' MRI sensitivity for detecting lesions was 45%. The attending surgeon identified 47% (18) of the chondral injuries, 89% (16) of the loose bodies, 71% (five) of the peroneus brevis tears, and the posterior talus process lesion, with a sensitivity of 63%. ConclusionsOur data suggest orthopaedic surgeons should review preoperative MRIs and also suggest the sensitivity of MRI may not be adequate to detect lesions in these patients before surgery.

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Section: Discussionmentioning

confidence: 99%

Is MRI Adequate to Detect Lesions in Patients with Ankle Instability?

O’Neill

Aman

Guyton

2010

Clinical Orthopaedics &Amp; Related Research

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“…Compared to arthroscopy as gold standard, MRI reaches a specificity of 92.9% to 99% for detecting pathologies of the menisci or the ligaments and 94% for detecting lesions in the cartilage [2][3][4]. The sensitivity is reported to be 91% to 99% for ligaments or menisci and 76.1% for the articular cartilage [3].…”

Section: Introductionmentioning

confidence: 91%

Comparison of image quality in magnetic resonance imaging of the knee at 1.5 and 3.0 Tesla using 32-channel receiver coils

et al. 2008

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We examined to what degree the visualization of anatomic structures in the human knee is improved using 3.0-T magnetic resonance imaging (MRI) and many element RF receive coils as compared to 1.5 T. We imaged 20 knees at 1.5 and 3.0 T using T2-weighted STIR, T2-weighted gradient echo, T1-weighted spin-echo, true-FISP and T2-weighted fast spin echo techniques in conjunction with 32-element RF coil arrays. The 3.0-T examination was considerably faster than its 1.5-T counterpart. A superior subjective visibility at 3.0 T vs 1.5 T was found in 27 of 50 evaluated structures (meniscus, ligaments) with the exception of true-FISP techniques. The 3.0-T examination provided a better visibility (evaluated by blinded consensus-reading by two radiologists) of small structures such as the ligamentum transversum genu. Also, cartilage was better delineated at 3.0 T. A 23% increased average signal-to-noise ratio as assessed using a temporal filter was observed at 3.0 T as compared to 1.5 T. At 3.0 T, imaging of the human knee is faster and results in a subjective visibility of anatomic structures that is superior to and competitive with 1.5 T.

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“…Traumatic cartilage lesions of the knee are common in physically active individuals, however the accurate numbers and localizations are not well known 1,2. The most crucial prerequisite for adequate long-term diarthrodial joint function is the integrity of its articular cartilage. Many previous studies [1][2][3][4] have demonstrated that the prevalence of articular chondral trauma is high and cartilage damage is generally acknowledged as an early factor in the process of irreversible joint degeneration. The recent development of new surgical procedures and tissue engineering, such as autologous chondrocyte implantation (ACI), have promising results for repair of hyaline or hyaline like cartilage.…”

Section: Introductionmentioning

confidence: 99%