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  • Double taper...

Double taper hydroxyapatite-coated implant tied to lower postoperative periprosthetic femur fractures

Written By : Dr. Nandita Mohan |Medically Reviewed By : Dr. Kamal Kant Kohli Published On 27 May 2021 3:30 AM  |  Updated On 27 May 2021 6:01 AM
Double taper hydroxyapatite-coated implant tied to lower postoperative periprosthetic femur fractures
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Researchers have found in a new study that the dual-taper, hydroxyapatite-coated implant had a significantly lower the postoperative periprosthetic femur fractures than a single-taper, proximally porous stem, according to the study published in the Journal of Orthopaedics.

Aging populations and expanding indications will greatly increase the volume of total hip arthroplasty (THA) in all age groups, including patients over 70 years old. Minimally invasive, uncemented direct anterior THA offers potential advantages for treating elderly patients.

However, literature indicates higher risks of postoperative periprosthetic femur fractures (PPFFs) with both direct anterior THA and uncemented femoral stems.

Therefore, R.M.Fuller and colleagues from the Department of Orthopaedics, Bluegrass Orthopaedics, Yorkshire Medical Park, Lexington, USA carried out this retrospective study to investigate the influence of femoral stem design on PPFF incidence in uncemented direct anterior THA among patients older than 70 years.

557 primary THAs in patients aged 70 or over were reviewed for PPFFs from a consecutive series of 2011 patients undergoing direct anterior THA from a fellowship-trained adult reconstruction surgeon. Exclusion criteria included age (<70) and posterior approach.

For the first cohort of 361 patients (79 of which passed exclusion criteria) the surgeon used a single-tapered, proximally porous coated, collarless titanium stem. For the next 1650, (478 of which passed exclusion), the surgeon used a dual-tapered, collared, hydroxyapatite-coated titanium stem.

Included patients were carefully monitored for PPFFs. A Fisher's exact test was used to compare the incidence PPFFs between the 2 implant designs.

The study highlighted that 2 of 79 (2.5%) patients had atraumatic PPFFs at an average of 19.5 days post-operatively in the first cohort. Both experienced a Vancouver type B2 periprosthetic fracture and required femoral revision. However, no patients (0/478, 0%) in the second group sustained a PPFF. (P = 0.0199).

Hence, the authors concluded that "the dual-taper, hydroxyapatite-coated implant had a significantly lower PPFF rate among elderly patients than a single-taper, proximally porous stem without a collar."

implantPostoperativeperiprostheticfemur fractureselderlyJournal of Orthopaedics
Source : Journal of Orthopaedics
Dr. Nandita Mohan
Dr. Nandita Mohan

    Dr. Nandita Mohan is a practicing pediatric dentist with more than 5 years of clinical work experience. Along with this, she is equally interested in keeping herself up to date about the latest developments in the field of medicine and dentistry which is the driving force for her to be in association with Medical Dialogues. She also has her name attached with many publications; both national and international. She has pursued her BDS from Rajiv Gandhi University of Health Sciences, Bangalore and later went to enter her dream specialty (MDS) in the Department of Pedodontics and Preventive Dentistry from Pt. B.D. Sharma University of Health Sciences. Through all the years of experience, her core interest in learning something new has never stopped. She can be contacted at editorial@medicaldialogues.in. Contact no. 011-43720751

    Dr. Kamal Kant Kohli
    Dr. Kamal Kant Kohli

    Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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