Survivorship and complications of total hip arthroplasty in patients with dwarfism

Hip International : the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
Ronuk ModiAntonia F Chen

Abstract

Total hip arthroplasty (THA) is a common procedure used to treat bony hip deformities and skeletal dysplasia in dwarfism. These surgeries are often more difficult than conventional THA as they may involve malformed joints and poor bone quality, and may require smaller prostheses. This study aims to investigate whether implant survivorship and revision rates vary among patients with and without dwarfism undergoing THA. A retrospective case-control study was performed for 102 THAs completed between 1997 and 2014 in patients under the height threshold of 147.32 cm. This cohort was matched 1:1.5 with patients of normal height with respect to age, gender, year of surgery, and Charlson comorbidities. All cases had a minimum follow-up of 1 year. A chart review was performed to identify patient and surgical characteristics, including outcomes. Radiographs were assessed for deformity, loosening, and periprosthetic fractures among other factors. The 2-, 5-, and 10-year survivorship of THA in patients with dwarfism was 92.9%, 92.9%, and 80.7%, respectively; and 94.4%, 86.4%, and 86.4% for controls, respectively (p = 0.95). The dwarfism cohort demonstrated an OR of 3.81 and 3.02 for revision for periprosthetic fractures (p = 0.11) and mech...Continue Reading

References

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Citations

Mar 7, 2020·Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association·Yosuke ObaMasaaki Mawatari
Oct 16, 2018·Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association·Malte HolschenJörn Steinbeck
May 19, 2020·Zeitschrift für Orthopädie und Unfallchirurgie·Christian LausmannAkos Zahar

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Methods Mentioned

BETA
total hip arthroplasty
Total

Software Mentioned

R Foundation for Statistical Computing
R
PACS
Martell Hip Analysis Suite

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