Document Detail

Radiographic risk factors for labral lesions in femoroacetabular impingement.
MedLine Citation:
PMID:  21748509     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Tears of the acetabular labrum can lead to pain, disability, and osteoarthritis. Several pathomechanisms have been proposed, including femoroacetabular impingement (FAI). Labral tears have been reported to occur in the presence of even subtle deformities of the acetabulum and femoral head-neck junction.
QUESTIONS/PURPOSES: We analyzed the association of the extent of bony deformity and presence and extent of labral lesions in hips with FAI.
PATIENTS AND METHODS: Radiographs of 123 hips in 116 patients receiving surgical treatment for FAI were analyzed and correlated to the presence and extent of labral lesions. Radiographic parameters of the acetabulum included acetabular index of the weightbearing zone, center-edge angle, inclination of the acetabulum, lateral head extrusion index, and retroversion. On the femoral side, neck-shaft angle, asphericity of the femoral head, superior and anterior alpha angle, offset, and offset ratio were measured. Osteoarthritis was graded according to Tönnis and Kellgren and Lawrence. Labral lesions were graded according to the modified Beck classification. A correlation between labral lesions and age, gender, affected side, type of impingement, and presence and extent of chondromalacia also was tested.
RESULTS: No correlation was found between presence or extent of labral lesions and any radiographic parameter tested, except osteoarthritis classification. The severity of labral lesions correlated to the severity of acetabular chondromalacia as well as patient age (Beck Grade 0 versus Grade 1, Beck Grade 0 versus Grades 1 and 2).
CONCLUSIONS: In the presence of impingement-inducing deformity, the extent of deformation is not associated with the incidence of labral lesions. Labral lesions are associated with early degenerative hip disease in FAI.
LEVEL OF EVIDENCE: Level I, diagnostic study. See Guidelines for Authors for a complete description of levels of evidence.
Thomas Kappe; Tugrul Kocak; Ralf Bieger; Heiko Reichel; Christian R Fraitzl
Related Documents :
20823029 - Relapsing acute disseminated encephalomyelitis in children: further evaluation of the d...
21914419 - Giant dedifferentiated retroperitoneal liposarcoma.
21752049 - Dermatomyofibromas presenting in pediatric patients: clinicopathologic characteristics ...
22096709 - Infection of an esophageal cyst following endoscopic fine-needle aspiration.
2614769 - Pitfalls in the management of acute adrenocortical insufficiency: discussion paper.
24790669 - Ciliary body melanoma - a particularly rare type of ocular tumor. case report and gener...
17172089 - Cushing's disease in a 5-month infant due to a basophilic microadenoma of the pituitary...
24351299 - Delayed symptomatic cyst formation following gamma-knife radiosurgery. a case report.
9305389 - Value of cytology as an adjunctive intraoperative diagnostic method. an audit of 2,250 ...
Publication Detail:
Type:  Journal Article     Date:  2011-07-12
Journal Detail:
Title:  Clinical orthopaedics and related research     Volume:  469     ISSN:  1528-1132     ISO Abbreviation:  Clin. Orthop. Relat. Res.     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-09-30     Completed Date:  2011-11-30     Revised Date:  2013-06-28    
Medline Journal Info:
Nlm Unique ID:  0075674     Medline TA:  Clin Orthop Relat Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3241-7     Citation Subset:  AIM; IM    
Department for Orthopaedic Surgery, University of Ulm, Oberer Eselsberg 45, 89081 Ulm, Germany.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Acetabulum / pathology*,  radiography
Cartilage, Articular / injuries,  pathology*,  radiography
Cross-Sectional Studies
Femoracetabular Impingement / complications,  diagnosis*,  surgery
Femur / pathology*,  radiography
Fractures, Cartilage / complications,  diagnosis*,  surgery
Hip Joint / pathology*,  radiography,  surgery
Middle Aged
Osteoarthritis, Hip / diagnosis,  etiology,  radiography
Retrospective Studies
Risk Factors
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Deep venous thrombosis and pulmonary embolism are uncommon in East Asian patients after total hip ar...
Next Document:  Biographical sketch: John Royal Moore, MD 1899-1988.