Revision hip arthroplasty using a modular revision hip system in cases of severe bone loss.
We sought to identify outcomes of the Restoration Modular Hip System in cases of severe femoral bone stock deficiency. We performed a retrospective review of 55 revTHAs with a mean follow-up of 32 months (24-60 months). Outcomes included the WOMAC and HHS. Preoperative bone loss was categorized as Paprosky 3A (n = 13), 3B (n = 14), and 4 (n = 17). Periprosthetic fractures were classified as Vancouver B2 (n = 6) and B3 (n = 5). 53 of 55 stems were in situ at time of final review. WOMAC improved from 46 ± 18 to 70 ± 22 and HHS improved from 47 ± 15 to 78 ± 15. Complications were identified in 9 patients, which included dislocation (3), subsidence (2), infection (2), and periprosthetic fracture (2). In cases of significant proximal femoral bone deficiency, this stem demonstrated improvement in clinical outcomes with good results at short-term follow up.
Division of Orthopaedic Surgery, University Hospital, London Health Sciences Centre, London, Ontario, Canada.
Ivan
I
Dzaja
North Sydney Orthopaedics and Sport Medicine Centre, Wollstonecraft, Australia.
Matt C
MC
Lyons
Division of Orthopaedic Surgery, University Hospital, London Health Sciences Centre, London, Ontario, Canada.
Richard W
RW
McCalden
Division of Orthopaedic Surgery, University Hospital, London Health Sciences Centre, London, Ontario, Canada.
Douglas D D
DD
Naudie
Division of Orthopaedic Surgery, University Hospital, London Health Sciences Centre, London, Ontario, Canada.
James L
JL
Howard
D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects* / Q000379:methods*; D016208:Databases, Factual; D004185:Disability Evaluation; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery; D005500:Follow-Up Studies; D006617:Hip Dislocation / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement / Q000379:methods; D057068:Periprosthetic Fractures / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation / Q000379:methods; D012189:Retrospective Studies
femoral bone loss; revision hip arthroplasty