|
Link
http://www.orthosupersite.com/view.asp?rID=41028
ORTHOPEDICS 2009;
32:489
Abstract
Dislocation after total hip arthroplasty (THA) remains a problem
despite many advances in technique and prosthetic design over the 5
decades since the introduction of total joint replacement. This article
reports the short-term results (1 year of follow-up) of THA in 235
patients who received a large, anatomically sized femoral head (BFH
Technology; Wright Medical Technology, Inc, Arlington, Tennessee) with
modular necks for hip stability. The prosthesis allows a 6-mm
differential between the size of the acetabular component and femoral
head size. Patients also received a Conserve monoblock acetabular cup
and a Profemur femoral stem (Wright Medical Technology, Inc) implanted
without cement. Postoperative clinical evaluations included measurements
of Harris Hip Scores and range of motion, along with assessments of pain
and function and radiological evaluations. There were no complications
(deep venous thrombosis, pulmonary embolism, infection, reoperations)
and no dislocations. All clinical evaluations showed statistically
significant improvement (P < .001) at 1-year follow-up, and radiographic
evaluation has shown no evidence of osteolysis or implant loosening.
This study indicates that using a large femoral head may reduce the
incidence of dislocation and may enable early return to activities
postoperatively. Future evaluations of this patient group will elicit
longer-term follow-up data.
|
