Radiographic Performance of Two Different Total Hip Cemented Arthroplasties

Sarmiento, Augusto; Natarajan, Vijay; Gruen, Thomas A.; McMahon, Mark S.

doi:10.1016/s0030-5898(20)32255-0

Cited by 23 publications

(1 citation statement)

References 2 publications

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“…Despite the fact that the field of total hip arthroplasty continuous to evolve and the use of acrylic cement as the means to stabilize the prosthetic components has significantly lost grounds to noncemented porous fixation the Charnley low-friction arthroplasty remains the gold-standard against which other arthroplasties are measured. Long-term results with the Charnley total hip arthroplasty have been reported by a number of investigators (1,2,3,5,16,11,12,10,19,20). No clear reasons have been given to explain why the fate of the Charnley arthroplasty has withstood the test of time in such a superior manner despite major advances in the understanding of the chemical and mechanical behavior of foreign bodies implanted in the body.…”

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confidence: 99%

A Radiographic Review of 135 Total Hip Charnley Arthroplasties followed between 15 and 35 Years

Sarmiento¹,

Latta

2006

ACHOT

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The long-term radiologically interpreted results of low-friction Charnley hip arthroplasties have been previously suggested to be influenced by surgical details, such as orientation of the femoral component, degree of coverage of the plastic acetabulum and other features. We carefully analyzed the radiographs of 135 Charnley arthroplasties that had remained functional, had not been revised and had follow-ups between 15 and 35 years. Several common denominators were identified amongst these radiographs: 93.5% arthroplasties had 100% coverage of the acetabular component; 88% had acetabular inclination between 40-45°; 84.5% had a proximal/medial column of cement between 3 and 5 millimeters at the level of femoral head resection; 81% had a femoral canal/stem ratio more than 50%; and 84% had a column of cement that extended below the tip of the prosthesis. This study supports the importance of technical surgical details that enhance the chances of long-term survival of cemented total hip arthroplasties.

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