| Reliability of clinical findings and magnetic resonance imaging for the diagnosis of chondromalacia patellae. | |
| | |
MedLine Citation:
|
PMID: 20360517 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
BACKGROUND: This diagnostic study was performed to determine the correlation between anterior knee pain and chondromalacia patellae and to define the reliability of magnetic resonance imaging for the diagnosis of chondromalacia patellae. METHODS: Fifty-six young adults (median age, 19.5 years) with anterior knee pain had magnetic resonance imaging of the knee followed by arthroscopy. The patellar chondral lesions identified by magnetic resonance imaging were compared with the arthroscopic findings. RESULTS: Arthroscopy confirmed the presence of chondromalacia patellae in twenty-five (45%) of the fifty-six knees, a synovial plica in twenty-five knees, a meniscal tear in four knees, and a femorotibial chondral lesion in four knees; normal anatomy was seen in six knees. No association was found between the severity of the chondromalacia patellae seen at arthroscopy and the clinical symptoms of anterior knee pain syndrome (p = 0.83). The positive predictive value for the ability of 1.0-T magnetic resonance imaging to detect chondromalacia patellae was 75% (95% confidence interval, 53% to 89%), the negative predictive value was 72% (95% confidence interval, 56% to 84%), the sensitivity was 60% (95% confidence interval, 41% to 77%), the specificity was 84% (95% confidence interval, 67% to 93%), and the diagnostic accuracy was 73% (95% confidence interval, 60% to 83%). The sensitivity was 13% (95% confidence interval, 2% to 49%) for grade-I lesions and 83% (95% confidence interval, 59% to 94%) for grade-II, III, or IV lesions. CONCLUSIONS: Chondromalacia patellae cannot be diagnosed on the basis of symptoms or with current physical examination methods. The present study demonstrated no correlation between the severity of chondromalacia patellae and the clinical symptoms of anterior knee pain syndrome. Thus, symptoms of anterior knee pain syndrome should not be used as an indication for knee arthroscopy. The sensitivity of 1.0-T magnetic resonance imaging was low for grade-I lesions but considerably higher for more severe (grade-II, III, or IV) lesions. Magnetic resonance imaging may be considered an accurate diagnostic tool for identification of more severe cases of chondromalacia patellae. |
| | |
Authors:
|
Harri K Pihlajamäki; Paavo-Ilari Kuikka; Vesa-Veikko Leppänen; Martti J Kiuru; Ville M Mattila |
Related Documents
:
|
3595627 - Computed tomography of meniscal cysts of the knee joint. 11500157 - Proper use of mr imaging in internal derangement of the knee (orthopedic surgeon's view). 2653727 - Meniscal tears--comparison of arthrography, ct, and mri. 2590327 - Accuracy of nonorthogonal magnetic resonance imaging in acute disruption of the anterio... 18830117 - The prevalence and significance of incidental thyroid nodules identified on computed to... 11953567 - The value of radionuclide studies in children with autosomal recessive polycystic kidne... |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: The Journal of bone and joint surgery. American volume Volume: 92 ISSN: 1535-1386 ISO Abbreviation: J Bone Joint Surg Am Publication Date: 2010 Apr |
Date Detail:
|
Created Date: 2010-04-02 Completed Date: 2010-05-03 Revised Date: 2010-10-25 |
Medline Journal Info:
|
Nlm Unique ID: 0014030 Medline TA: J Bone Joint Surg Am Country: United States |
Other Details:
|
Languages: eng Pagination: 927-34 Citation Subset: AIM; IM |
Affiliation:
|
Research Unit, Centre for Military Medicine, P.O. Box 50, FIN-00301 Helsinki, Finland. Harri.Pihlajamaki@helsinki.fi |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adolescent Adult Arthroscopy Chondromalacia Patellae / diagnosis* Female Humans Knee Joint / pathology Magnetic Resonance Imaging* Male Patellofemoral Pain Syndrome / diagnosis, etiology Predictive Value of Tests Sensitivity and Specificity Young Adult |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Glenohumeral contact kinematics in patients after total shoulder arthroplasty.
Next Document: Structural changes in muscle and glenohumeral joint deformity in neonatal brachial plexus palsy.