Degenerative changes in the ligamentum teres of the hip: cadaveric study with magnetic resonance arthrography, anatomical inspection, and histologic examination.
OBJECTIVE
Review and classify the pathologic abnormalities of the ligamentum teres in degenerative hip joints.


METHODS
Eleven cadaveric hip joints were examined with magnetic resonance arthrography and were then sectioned. The appearance of the ligamentum teres and its attachment seen by inspection of the anatomical sections was correlated with findings seen at magnetic resonance imaging. Histologic evaluation was done.


RESULTS
Magnetic resonance arthrographic and histologic findings showed a spectrum of ligamentum teres degeneration. The thickest ligamentum teres revealed mucoid and fibromatous degeneration with microscopic tear. Ligamentum teres with intermediate thickness revealed fatty replacement with and without fibromatous degeneration, fibromatous degeneration with and without mucoid degeneration, and eosinophilic change. The thinnest ligamentum teres was near-complete disruption of the ligament.


CONCLUSIONS
The ligamentum teres revealed degenerative changes that were similar histologically to degenerative changes in tendons. Magnetic resonance arthrography provided a sensitive technique for demonstration of the ligamentum teres and various patterns of degeneration.
Sampatchalit
Sudsriluk
S
Department of Radiology, VA Medical Center, San Diego, CA, USA. brownybritney@yahoo.com
Barbosa
Diogo
D
Gentili
Amilcare
A
Haghighi
Parviz
P
Trudell
Debra
D
Resnick
Donald
D
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002102:Cadaver; D005260:Female; D006621:Hip Joint / Q000473:pathology*; D006801:Humans; D008023:Ligaments, Articular / Q000473:pathology*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male