Low-friction arthroplasty

To the Editor.— Eftekhar's article, "Low-Friction Arthroplasty: Indications, Contraindications, and Complications" (218:705, 1971), was timely because it coincided with the FDA release of the acrylic cement used in the operation. The paper is open to criticism because it offers incomplete statistical data to support its many conclusions. Eftekhar has had extensive experience in over 900 cases, yet he denies the reader the opportunity to judge the validity of his conclusions by an examination of data from this large series. All orthopedists are aware of the infection problem in patients who undergo total hip replacement, yet no data are offered from Eftekhar's series. With regard to postoperative dislocations, the author again does not indicate the incidence, or the factors that may have influenced his results. He condemns failure to remove the trochanter but there is no evidence to support this condemnation. In San Diego over 250 total hip replacements have