Computed tomography evaluation of hip geometry restoration after total hip resurfacing

Arnould, A.; Boureau, Florian; Benad, Kevin; Pasquier, Gilles; Migaud, Henri; Girard, Julien

Document type :

Article dans une revue scientifique

DOI :

10.1016/j.otsr.2015.04.004

PMID :

26148967

Permalink :

http://hdl.handle.net/20.500.12210/12071

Title :

Computed tomography evaluation of hip geometry restoration after total hip resurfacing

Author(s) :

Arnould, A. [Auteur]
Boureau, Florian [Auteur]
Benad, Kevin [Auteur]
Pasquier, Gilles [Auteur]

Marrow Adiposity & Bone Lab - Adiposité Médullaire et Os - ULR 4490 [MABLab]
Marrow Adiposity & Bone Lab (MABLab) - ULR 4490
Migaud, Henri [Auteur]

Marrow Adiposity & Bone Lab - Adiposité Médullaire et Os - ULR 4490 [MABLab]
Marrow Adiposity & Bone Lab (MABLab) - ULR 4490
Girard, Julien [Auteur]

Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 [URePSSS]
Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369

Journal title :

Orthopaedics & traumatology, surgery & research

Abbreviated title :

Orthop. Traumatol.-Surg. Res.

Volume number :

101

Pages :

571-575

Publication date :

2015-09-01

ISSN :

1877-0568

English keyword(s) :

Hip resurfacing
Biomechanical reconstruction
Femoral offset
CT reconstruction

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

BACKGROUND: Anatomic reconstruction of the hip is among the main requirements for hip arthroplasty to be successful. Resurfacing arthroplasty may improve replication of the native joint geometry but has been evaluated only ...
Show more >BACKGROUND: Anatomic reconstruction of the hip is among the main requirements for hip arthroplasty to be successful. Resurfacing arthroplasty may improve replication of the native joint geometry but has been evaluated only using standard radiographs. We therefore performed a computed tomography (CT) study to assess restoration of hip geometry after total hip resurfacing (HR), comparatively with the non-operated side. OBJECTIVE: HR does not change native extra-medullary hip geometry by more than 5mm and/or 5°. METHODS: CT was used to evaluate unilateral HR in 75 patients with a mean age of 52.2years (range, 22-67years). The normal non-operated side served as the control in each patient. Mean follow-up was 2.5years (range, 1.9-3.1years). The primary evaluation criteria were femoral offset (FO) and femoral neck anteversion (FNA) and the secondary criteria were cup inclination angle, cup anteversion angle, and lower-limb length. RESULTS: FO showed a non-significant decrease (mean, -2.2mm; range, -4.5 to +3.7mm). FNA was preserved, with a difference of less than 2° at last follow-up versus the preoperative value. Cup measurements showed a mean anteversion angle of 24.8° (0.9-48.6) and mean inclination angle of 44.1° (32.1-56.3); corresponding values for the native acetabulum were 38.9° (20.5-54.8) and 24.8° (4.8-33.6). The residual lower-limb length discrepancy was less than 1mm (mean, -0.04mm [-1.2 to +1.6mm]). The mean angle between the femoral implant and the femoral neck axis was 5.4° of valgus. CONCLUSIONS: Our results show that HR accurately restored the native extra-medullary hip geometry. METHODS: III, prospective diagnostic case-control study.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CHU Lille
Univ. Littoral Côte d’Opale
Univ. Artois
Université de Lille

Collections :

Research team(s) :

Activité Physique, Muscle, Santé (APMS)

Submission date :

2019-09-24T07:28:54Z

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