Evidence map›Paper›PMID 30284002›Full record

ArticleInternational orthopaedics2019

Bone mineral density as a marker of hip implant longevity: a prospective assessment of a cementless stem with dual-energy X-ray absorptiometry at twenty years.

Giuseppe Sessa, Luciano Costarella, Calogero Puma Pagliarello, Antonio Di Stefano, Andrea Sessa, Gianluca Testa, Vito Pavone

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In one paragraph

Article in International orthopaedics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  8. The history of Italian Orthopaedics.International orthopaedics · 2019
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Giuseppe SessaDepartment of General Surgery and Medical Surgical Specialties - Section of Orthopaedics and Traumatology, University Hospital "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy.
Luciano CostarellaDepartment of General Surgery and Medical Surgical Specialties - Section of Orthopaedics and Traumatology, University Hospital "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy.
Calogero Puma PagliarelloDepartment of General Surgery and Medical Surgical Specialties - Section of Orthopaedics and Traumatology, University Hospital "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy.
Antonio Di StefanoDepartment of General Surgery and Medical Surgical Specialties - Section of Orthopaedics and Traumatology, University Hospital "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy.
Andrea SessaII Clinic, Biomechanics Laboratory, Rizzoli Orthopaedic Institute, Bologna, Italy.
Gianluca TestaDepartment of General Surgery and Medical Surgical Specialties - Section of Orthopaedics and Traumatology, University Hospital "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy. gianpavel@hotmail.com.ORCID http://orcid.org/0000-0001-5246-9714
Vito PavoneDepartment of General Surgery and Medical Surgical Specialties - Section of Orthopaedics and Traumatology, University Hospital "Policlinico-Vittorio Emanuele", University of Catania, Via Santa Sofia 78, 95123, Catania, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeBone remodeling around the femoral component after total hip arthroplasty (THA) is considered to be an important factor in long-term stability and seems to be strictly related to the stem design, coating, and fixation. Stress shielding, micro-movement, and high intra-articular fluid pressure might activate macrophages and osteoclasts, causing progressive bone density decreases. Here we analyze the bone mineral density (BMD) around a cementless femoral stem during a 20-year period to better understand the adaptive bone changes around such implants during long-term follow-up.

methodsIn this retrospective study, 14 patients treated by THA were reviewed from a cohort of 84. Clinical evaluation with Harris Hip Score and radiographic assessment were performed throughout a 20-year follow-up. To evaluate the bone remodeling around the stem, we monitored the femoral BMD in four regions of interest with a dual-energy X-ray absorptiometry (DEXA) post-operatively and at one, two, three, five and 20 years of follow-up.

resultsThe main BMD changes between the post-operative examination and the 20-year follow-up varied between + 11.19% and + 24.30%. Patients with signs of loosening, low Harris Hip Scores, and pain showed decreasing BMD values.

conclusionsThe correlation between the clinical result and BMD values could suggest DEXA results as a predictor of implant loosening or longevity.

Indexed as

Absorptiometry, PhotonArthroplasty, Replacement, HipAgedAged, 80 and overBone DensityBone RemodelingFemaleFemurFollow-Up StudiesHip ProsthesisHumansMaleMiddle AgedOsteoarthritis, HipPostoperative PeriodProsthesis DesignCementless stemDEXAPeriprosthetic BMDProsthetic looseningTotal hip arthroplasty

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.