Bawale R, Matar HE, Illanes FL, et al. - The present study was conducted to present on long-term survivorship and radiographic outcomes of complex primary total hip arthroplasty (THA) using a modular cementless stem (S-ROM). They performed a retrospective consecutive study including a total of 167 patients (167 hips): 97 males and 70 females with average age at the time of surgery of 55 years (range 22-76). All patients had undergone complex THA by the senior author from 1987 to 1999. Patients were distinguished using a prospective database. The results of this study demonstrate that S-ROM stem has stood the test of time with long-term, 30-year survivorship of 97.6% and continues to play an important role in modern hip surgery providing longevity and versatility in a single designer surgeon series. Nevertheless, there is a need for further comparative long-term studies from independent centers for a definitive conclusion.