Purpose: To investigate the diagnostic efficacy of morphological sequences at 3.0 T MR imaging in detecting anterior cruciate ligament (ACL), meniscal pathology and traumatic cartilage legions in young patients with chronic deficient anterior cruciate ligament knees.
Methods And Materials: This prospective study included 43 patients (39 male) between the age of 15 and 37 years (mean age 22.6 years) with a history of knee injury sustained at least 3 months prior to the decision to repair a torn ACL. All patients underwent a 3.0 T MR scan with the same standard protocol, including intermediate-weighted and three-dimensional spoiled gradient-recalled T1-weighted sequences with fat saturation and subsequently surgical reconstruction of the ACL, along with meniscal and cartilage repair, when necessary.
Results: All ACL tears were correctly interpreted by 3.0 T MR images. The sensitivity of the MR scans regarding tears of the medial meniscus was 93.7%, the specificity 92.6%, the positive predictive value 88.2% and the negative predictive value 95.8%. The sensitivity of the MR scans regarding tears of lateral meniscus was 85.7%, the specificity was 93.1%, the positive predictive value 85.7% and the negative predictive value 93.1%. With regard to the grading of the cartilage lesions, Cohen's kappa coefficient indicated moderate agreement for grade I and II cartilage lesions (0.5), substantial agreement for grade III and IV cartilage lesions (0.70 and 0.66) and substantial agreement for normal regions (0.75). Regarding location of the cartilage lesions, Cohen's kappa coefficient varied between almost perfect agreement in the lateral femoral condyle and no agreement in the trochlea.
Conclusion: In the setting of chronic ACL deficiency, MR imaging at 3.0 T achieves satisfactory diagnostic performance regarding meniscal and ligamentous pathology. In the detection of cartilage lesions MRI is less successful.
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http://dx.doi.org/10.1007/s00256-010-1054-6 | DOI Listing |
Acta Chir Orthop Traumatol Cech
January 2025
University of Pisa, Department of Orthopedic and Trauma Surgery, Pisa, Italy.
Purpose Of The Study: Hand enchondromas are benign cartilage bone tumors. Curettage represents the actual gold standard for hand enchondromas. Little has been written about the effectiveness of curettage on hand functionality.
View Article and Find Full Text PDFArthrosc Tech
December 2024
Department of Orthopedics and Traumatology, Ankara Yıldırım Beyazıt University, Ankara Bilkent City Hospital, Ankara, Turkey.
Mosaicplasty is a relatively challenging procedure used in the management of focal osteochondral lesions of the joints. Donor-site morbidity is still the main concern after mosaicplasty because it entails the harvesting of an osteochondral autograft from an otherwise healthy region to be impacted later on the weight-bearing damaged site. We describe a possible alternative to conventional mosaicplasty with subchondral bone support harvested from the iliac crest as an osteoperiosteal autograft and covered with a minced cartilage layer.
View Article and Find Full Text PDFSurg Neurol Int
December 2024
Department of Medicine, Fatima Memorial College of Medicine and Dentistry (FMHCMD), Lahore, Pakistan.
Background: The presence of a human tail is a rare condition resulting from an embryonic remnant that fits the definition of a caudal appendage. It may be a vestigial (true) or a pseudotail. Both may be considered markers of underlying intraspinal abnormalities.
View Article and Find Full Text PDFRegen Biomater
November 2024
Zhejiang Top-Medical Medical Dressing Co. Ltd, Wenzhou, Zhejiang 325025, China.
Decellularization is the process of obtaining acellular tissues with low immunogenic cellular components from animals or plants while maximizing the retention of the native extracellular matrix structure, mechanical integrity and bioactivity. The decellularized tissue obtained through the tissue decellularization technique retains the structure and bioactive components of its native tissue; it not only exhibits comparatively strong mechanical properties, low immunogenicity and good biocompatibility but also stimulates neovascularization at the implantation site and regulates the polarization process of recruited macrophages, thereby promoting the regeneration of damaged tissue. Consequently, many commercial products have been developed as promising therapeutic strategies for the treatment of different tissue defects and lesions, such as wounds, dura, bone and cartilage defects, nerve injuries, myocardial infarction, urethral strictures, corneal blindness and other orthopedic applications.
View Article and Find Full Text PDFAm J Sports Med
January 2025
North Sydney Orthopaedic and Sports Medicine Centre, Wollstonecraft, New South Wales, Australia.
Background: A growing body of evidence surrounds secondary meniscal and cartilage pathology after delay to anterior cruciate ligament (ACL) reconstruction (ACLR). Many of these studies focus on or include an adult population.
Purpose: To elucidate the prevalence of secondary meniscal and chondral pathology with delay to ACLR in the adolescent population as well as examine the influence of sex, skeletal maturity, and trends over the years.
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