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Completed

NCT Number: NCT06430723

The Impact of Obesity on Short Stem Total Hip Arthroplasty

The purpose of this study is to review the impact of obesity on subsidence and clinical outcome after short stem total hip arthroplasty.

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Key information

Conditions

THA Body Weight Nutrition Disorders Nutritional and Metabolic Diseases Obesity Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Ordensklinikum Linz, Barmherzige Schwestern Abteilung Orthopädie

Linz, 4010, Austria

About this study

Short stem total hip arthroplasty (THA) has gained popularity due to its bone-sparing technique, but its outcomes in obese patients remain uncertain.

While studies on the mid-term outcome in a general patient cohort provide excellent results in terms of the clinical and radiological outcome as well as the complication rate of short stem THA, data on its use in obese patients is still rare and not sufficiently conclusive. Some studies have found no evidence of increased subsidence in obese patients, while other studies have shown contrary trends.

In this context, the aim of this study was to investigate the relationship between BMI, postoperative subsidence and clinical outcomes in the setting of short stem THA.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • patients who underwent primary short stem hip arthroplasty with Mathys Optimys short stem between 01.01.2018 and 31.12.2020
  • availability of preoperative and postoperative radiographs for assessment of subsidence
  • a minimum BMI of 30kg/m2 for the obese group
  • a minimum follow-up of 24 months.

Exclusion criteria

  • former surgeries of the hip in question
  • incomplete clinical data
  • incomplete radiological data

Treatment and study plan

Total Hip Arthroplasty

Procedure

Total hip arthroplasty using short stem via an minimally invasive anterolateral approach

Primary outcomes

  1. Subsidence

    Time frame: 2 years

    subsidence of the short stem measured via EBRA (Einzelbild Röntgenanalyse), [mm]

  2. Harris Hip Score

    Time frame: 2 years

    Clinical outcome, [0-100points]

Secondary outcomes

  1. surgery time

    Time frame: 2 years

    Surgery time from cut to skin closure, [minutes]

  2. Length of stay

    Time frame: 2 years

    Length of postoperative stay in hospital [days]

  3. Blood loss

    Time frame: 2 years

    Blood loss calculated according to laboratory test results of hematocrit [ml]

Sponsors and collaborators

Lead sponsor

Krankenhaus Barmherzige Schwestern Linz

Other

Registry information

Official study title

Obesity and it's Impact on Subsidence and Clinical Outcomes After Short Stem Total Hip

Important dates

Study start
2018
Primary completion
2023
Study completion
2024
First posted
May 28, 2024
Registry last updated
Jun 11, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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