MRI of joint fluid in femoral head osteonecrosis
Journal
Skeletal Radiology
Journal Volume
31
Journal Issue
11
Pages
624-630
Date Issued
2002
Author(s)
Chan, W.P.
Liu, Y.-J.
Huang, G.-S.
Jiang, C.-C.
Huang, S.
Chang, Y.-C.
CHING-CHUAN JIANG
SHIER-CHIEG HUANG
Abstract
Objective: To evaluate the relationship between joint fluid, intramedullary pressure (IMP), bone marrow edema, and stages of osteonecrosis of the femoral head (ONFH). Material and methods: We reviewed the magnetic resonance (MR) images of 28 patients with 40 documented ONFHs. IMP was measured in 16 symptomatic hips. The amount of joint fluid was graded as 0 (no fluid), 1 (fluid <5 mm in width), or 2 (fluid ? 5 mm in width) adjacent to the entire length of the femoral neck. Associated focal and diffuse bone marrow abnormalities were evaluated. A control group of 29 recruited individuals without symptoms related to hip disease were examined. Follow-up MR images were obtained in four patients (five affected hips) 6-10 months after core decompression. Results: Of the 40 affected hips, the severity of ONFH was divided into stages 0 (n=4), I (n=28), and II (n=8 hips) on MR findings. The correlation of joint fluid to IMP and to the presence of bone marrow edema was poor. The amount of joint fluid correlated significantly with the stage of ONFH. None of the five affected hips showed decreased joint fluid on follow-up MR images. Conclusion: The amount of joint fluid correlates well with the stage of ONFH. The amount of joint fluid does not correlate with IMP or bone marrow edema.
Subjects
Bone marrow; Joint fluid; Magnetic resonance imaging (MRI); Osteonecrosis of the femoral head (ONFH)
Other Subjects
gadolinium pentetate; gadolinium pentetate meglumine; adult; aged; article; bone biopsy; bone marrow disease; bone scintiscanning; clinical article; controlled study; correlation analysis; decompression surgery; disease course; disease severity; edema; female; femur head necrosis; follow up; hip disease; human; human tissue; joint pressure; male; nuclear magnetic resonance imaging; priority journal; synovial fluid; synovial fluid level; Adult; Aged; Aged, 80 and over; Bone Marrow; Edema; Female; Femur Head Necrosis; Hip Joint; Humans; Magnetic Resonance Imaging; Male; Middle Aged; Synovial Fluid
Type
journal article