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Modular femoral stem use may be alternative treatment for bone loss in revision THA
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Allograft reconstruction with mixed fixation techniques of the modular revision stem may be an effective alternative for proximal femoral bone loss management during revision total hip arthroplasty, according to study results.
Researchers evaluated 41 hips from 40 patients who underwent revision total hip arthroplasty (THA) with modular femoral components between August 2006 and September 2012. Both clinical and radiographic evaluations were conducted before the procedure and at 6 weeks, 3 months, 6 months, 1-year and yearly until the final follow-up. Information collected from clinical evaluations included history taking, physical examinations, Harris Hip Score and WOMAC pain scores.
Results showed implant survival overall was 95% at a mean of 5.2 years follow-up. The Harris Hip Score improved from 34.5 points to 81 points as well as the WOMAC score from 45 points to 82.5 points. There were three hips with distal femoral cortical perforation seen with the radiographs and were healed with conservative treatment. Fractures had all healed without any additional surgeries needed and moved towards stable osseointegration of the stem.
After 2 years postoperatively, radiographic results showed fractures were healed with no stem subsidence and within 1-week later, superficial wound infections had developed in one hip and treated with antibiotics. In 39 hips, there was stable fixation with osseointergration. Stem subsidence, stem fractures or dislocations of the hip were not observed, according to researchers.‒ by Monica Jaramillo
Disclosures: The researchers report no relevant financial disclosures.
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