Medium-term outcome in patients treated with total hip arthroplasty using a modular femoral stem

Augusto Dagnino, Guido Grappiolo, Franco M. Benazzo, Ian D. Learmonth, Nicola Portinaro, Lorenzo Spotorno

Research output: Contribution to journalArticlepeer-review


The clinical, radiographic and quality of life results of total hip arthroplasty using the MODULUS cementless modular femoral stem were reviewed. 48 patients who had a total hip arthroplasty using the MODULUS femoral stem were identified. Six had bilateral procedures, resulting in 60 hips with complete clinical and radiographic data. Mean age at implantation was 50 years (range 33 to 82). Mean follow-up was 59 months (range 50 months to 73). There were two early post-operative dislocations (within 2 days). One patient required further surgery to remove heterotopic bone. Mean Harris Hip Score increased from 37 points preoperatively (range, 7 to 66) to 89 points at final review (range, 65 to 100 points). Radiographic evaluation revealed that all implants were stable without evidence of osteolysis but three patients (5%) exhibited heterotopic ossification. Quality of life was evaluated with the SF36. The physical component increased from 29.2 points (range, 18.5 to 46.0) to 51.7 points (range 42.9 to 60.6) and the mental component from 375 points (range, 19.5 to 50.0) to 50 points (range 32,8 to 62.0).

Original languageEnglish
Pages (from-to)274-279
Number of pages6
JournalHIP International
Issue number3
Publication statusPublished - May 2012


  • DDH
  • Harris Hip Score
  • Modular stem
  • Quality of life
  • SF36
  • Total hip replacement

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery


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