Short Stems Reproduce Femoral Offset Better Than Standard Stems in Total Hip Arthroplasty: a Case-control Study

Overview

Journal Int Orthop

Specialty Orthopedics

Date 2019 Jun 30

PMID 31254017

Citations 8

Authors

Roger Erivan

Anne-Sophie Muller

Guillaume Villatte

Stephane Millerioux

Aurelien Mulliez

Stephane Boisgard

Stephane Descamps

Affiliations

Soon will be listed here.

Abstract

Introduction: In total hip arthroplasty (THA), altering the original offset can lead to poor outcome or even complications or revision when the changes are too great. The aim of the present study was to compare femoral offset between short and standard stems. The hypothesis was that the short stems studied provide better control of post-operative femoral offset.

Patients And Methods: We retrospectively reviewed 100 consecutive THAs using uncemented optimys™ short stems (Mathys, Bettlach, Switzerland), matched to 100 standard stem THAs performed during the same period. The primary endpoint was femoral offset; secondary endpoints were the limb length and cervico-diaphyseal angle.

Results: The mean femoral offset increased by 6.0 ± 7.2 mm overall (p < 0.0001), 4.7 ± 6.7 mm in the short-stem group (p < 0.0001), and 7.2 ± 7.5 mm in the standard stem group (p < 0.0001), with a significant inter-group difference (p = 0.0152). Limb length showed no significant inter-group difference (p = 0.8425). Cervico-diaphyseal angle was increased by surgery overall, and more by standard than by short stems (p < 0.05).

Conclusion: Measurement of femoral offset revealed significant lateralization. It is critical that offset should be maintained in THA. The technique we use increases femoral offset, but the present study showed less increase using short than standard stems. These findings must be borne in mind to achieve good clinical outcome.

Citing Articles

Revision of Failed Short Stems in Total Hip Arthroplasty.

Migliorini F, Coppola F, DAddona A, Rosolani M, Rocca F J Clin Med. 2024; 13(9).

PMID: 38730987 PMC: 11084586. DOI: 10.3390/jcm13092459.

Femoroacetabular offset restoration in total hip arthroplasty; Digital templating a short stem a conventional stem.

de Waard S, Verboom T, Bech N, Sierevelt I, Kerkhoffs G, Haverkamp D World J Orthop. 2022; 13(2):139-149.

PMID: 35317405 PMC: 8891660. DOI: 10.5312/wjo.v13.i2.139.

Implant positioning in total hip arthroplasty: influence of horizontal and vertical offset on functionality of prosthetic hip joint.

Vaishy A, Arif M, Aanand R, Singh K, Rulaniya H, Kumawat N Int Orthop. 2022; 46(7):1501-1506.

PMID: 35288768 DOI: 10.1007/s00264-022-05364-7.

Reconstruction of the anatomy of the hip in total hip arthroplasty with two different kinds of stems.

Fink B, Morgan M, Schuster P BMC Musculoskelet Disord. 2022; 23(1):212.

PMID: 35248014 PMC: 8897939. DOI: 10.1186/s12891-022-05152-9.

Femoral antetorsion after calcar-guided short-stem total hip arthroplasty: A cadaver study.

Hochreiter J, Bohm G, Fierlbeck J, Anderl C, Birke M, Munger P J Orthop Res. 2021; 40(9):2127-2132.

PMID: 34873734 PMC: 9540338. DOI: 10.1002/jor.25228.

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