Patient preoperative positioning for THA affects postoperative acetabular cup angle and leg length discrepancy: a prospective case series

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064203%3A_____%2F25%3A10504540" target="_blank" >RIV/00064203:_____/25:10504540 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/25:00390039 RIV/00216208:11110/25:10504540

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JTHoO7Dl6j" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JTHoO7Dl6j</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-025-21109-z" target="_blank" >10.1038/s41598-025-21109-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Patient preoperative positioning for THA affects postoperative acetabular cup angle and leg length discrepancy: a prospective case series

Popis výsledku v původním jazyce

Proper orientation of the acetabular cup in total hip arthroplasty (THA) is essential to reduce dislocation risk, improve range of motion, and enhance implant longevity. Misalignment can lead to complications such as impingement, wear, and aseptic loosening. Patient positioning on the operating table is a critical yet often overlooked factor influencing pelvic tilt and cup placement accuracy during THA. This study aimed to evaluate the impact of preoperative patient positioning on acetabular component placement and explore whether surgeon experience affects cup placement precision. In this prospective case series, 135 patients undergoing non-navigated THA in the supine position at a single tertiary center were included. Preoperative photographs captured pelvic inclination, which was compared to postoperative cup orientation measured on radiographs. Patients were divided into three groups based on surgeon experience (&lt; 5 years, 5-15 years, &gt; 15 years). Statistical analyses assessed relationships among patient positioning, cup orientation, leg length discrepancy, and surgeon experience. Greater pelvic inclination measured before sterile draping was significantly associated with a smaller acetabular cup angle (Pearson&apos;s R = -0.72, p &lt; 0.001). Surgeons with &gt; 15 years of experience demonstrated less variability in cup orientation and leg length discrepancy than those with fewer years of experience (p &lt; 0.001). Despite variations in pelvic positioning, the overall postoperative cup angle was consistent across groups. Preoperative patient positioning significantly impacts acetabular cup orientation, with more experienced surgeons better able to compensate for these deviations. Positioning protocols and surgeon training on pelvic orientation may enhance THA outcomes, particularly for early-career surgeons.

Název v anglickém jazyce

Patient preoperative positioning for THA affects postoperative acetabular cup angle and leg length discrepancy: a prospective case series

Popis výsledku anglicky

Proper orientation of the acetabular cup in total hip arthroplasty (THA) is essential to reduce dislocation risk, improve range of motion, and enhance implant longevity. Misalignment can lead to complications such as impingement, wear, and aseptic loosening. Patient positioning on the operating table is a critical yet often overlooked factor influencing pelvic tilt and cup placement accuracy during THA. This study aimed to evaluate the impact of preoperative patient positioning on acetabular component placement and explore whether surgeon experience affects cup placement precision. In this prospective case series, 135 patients undergoing non-navigated THA in the supine position at a single tertiary center were included. Preoperative photographs captured pelvic inclination, which was compared to postoperative cup orientation measured on radiographs. Patients were divided into three groups based on surgeon experience (&lt; 5 years, 5-15 years, &gt; 15 years). Statistical analyses assessed relationships among patient positioning, cup orientation, leg length discrepancy, and surgeon experience. Greater pelvic inclination measured before sterile draping was significantly associated with a smaller acetabular cup angle (Pearson&apos;s R = -0.72, p &lt; 0.001). Surgeons with &gt; 15 years of experience demonstrated less variability in cup orientation and leg length discrepancy than those with fewer years of experience (p &lt; 0.001). Despite variations in pelvic positioning, the overall postoperative cup angle was consistent across groups. Preoperative patient positioning significantly impacts acetabular cup orientation, with more experienced surgeons better able to compensate for these deviations. Positioning protocols and surgeon training on pelvic orientation may enhance THA outcomes, particularly for early-career surgeons.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30211 - Orthopaedics

Projekt

<a href="/cs/project/EH23_020%2F0008512" target="_blank" >EH23_020/0008512: BIODEGRADABLE: Platforma pro moderní implantologii - výzkum individualizovaných biodegradabilních materiálů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

2045-2322

Svazek periodika

15

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

37073

Kód UT WoS článku

001600531900009

EID výsledku v databázi Scopus

2-s2.0-105019504830