Metal-on-metal (M/M) total hip arthroplasty (THA) was considered an attractive option for young and active patients due to a theoretic reduction in wear and a decreased dislocation rate when using larger femoral head sizes. Recent studies demonstrate an increase in cobalt (Co) and chromium (Cr) ion levels with the use of some M/M THA implants. The purpose of this study was to define the Co/Cr levels in patients who received a specific implant and to evaluate the M/M implant radiographically and clinically. From 2005–2009, 76 patients underwent THA using a single implant. All patients were contacted and 40 (31 males, 9 females, age 57.1 years ± 8.4, ASA 2.5 ± 0.6) of the 76 chose to have Co/Cr levels drawn. There were 45 joints (22 right, 23 left) that received THA with the diagnosis of osteoarthritis (80 %), avascular necrosis (15.6 %), and fracture (4.4 %). The average acetabular cup size was 56.2 mm ± 3.0 (range 50–60) and head size was 49.8 mm ± 3.6 (range 40–54). The average acetabular cup inclination was 40.0° ± 7.2 (range 29–64°). Of the 45 joints, 3 were revised (2 septic revision, 1 aseptic revision). Co/Cr levels were measured 2.3 years ± 1.1 after surgery, with an average cobalt level of 1.1 μg/L ± 0.8 and chromium level of 1.7 μg/L ± 1.3. At 6 months clinical follow-up, 2 patients complained of anterior groin pain (4.4 %) and 6 patients complained of a limp or Trendelenberg gait (13.3 %). The hip society score averaged 85.5 ± 16.3 and WOMAC score averaged 87.2 ± 17.5. There was no correlation between elevated Co/Cr levels and acetabular cup inclination, revision rate, femoral head diameter, and self-assessment scores. The results of this short-term study demonstrate that the Co/Cr levels from the use of this M/M THA implant are slightly elevated, but are within an acceptable range to not cause clinically significant problems (<17 μg/L), and that patients perform well according to standardized questionnaires.