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Ligament preserving total hip arthroplasty prevents different leg length and femoral offset / Artroplastia total do quadril com preservação de ligamentos previne comprimentos diferentes da perna e offset femoral
Fujita, Masahiro; Hayashi, Shinya; Kamenaga, Tomoyuki; Fujishiro, Takaaki; Matsumoto, Tomoyuki; Kuroda, Ryosuke.
  • Fujita, Masahiro; Centre Takatsuki General Hospital. Department of Orthopaedic Surgery and Joint Surgery. Takatsuki. JP
  • Hayashi, Shinya; Kobe University Graduate School of Medicine. Hyogo. JP
  • Kamenaga, Tomoyuki; Kobe University Graduate School of Medicine. Hyogo. JP
  • Fujishiro, Takaaki; Centre Takatsuki General Hospital. Department of Orthopaedic Surgery and Joint Surgery. Takatsuki. JP
  • Matsumoto, Tomoyuki; Kobe University Graduate School of Medicine. Hyogo. JP
  • Kuroda, Ryosuke; Kobe University Graduate School of Medicine. Hyogo. JP
Acta ortop. bras ; 30(spe1): e242758, 2022. tab, graf
Article in English | LILACS-Express | LILACS | ID: biblio-1383442
ABSTRACT
ABSTRACT

Objectives:

The leg length (LL) and femoral offset (FO) discrepancy following total hip arthroplasty (THA) are important factors for postoperative outcomes and restoring native hip biomechanics is essential for THA. Hip capsular ligament contributes to joint stability; however, there are few studies about the influence of ligament preservation on LLD and FO following THA.

Methods:

We conducted a retrospective study involving 60 patients who underwent primary THA using a short stem through the anterolateral approach between June 2016 and August 2018. From August 2017, we preserved the vertical band of iliofemoral ligament and the pubofemoral ligament in THA, and the compared pre- and postoperative radiographic LLD and FO difference between the ligament preservation (n = 30) and ligament excision (n = 30) groups.

Results:

Postoperative LLD was significantly smaller in the ligament preservation than in the ligament excision group. The ratio of excessive LLD and FO difference was lower in the ligament preservation group than the ligament excision one.

Conclusion:

The preservation of the hip capsular ligament suppressed the increased LLD and FO difference. Level of Evidence II; Prognostic Study - Investigation of the Effect of a Patient Characteristic on the Outcome of a Disease .
RESUMO
RESUMO

Objetivos:

A discrepância do comprimento da perna (CP) e do offset femoral (OF) após a artroplastia total do quadril (ATQ) são fatores importantes para os resultados pós-operatórios, e a restauração da biomecânica original do quadril é essencial para a ATQ. O ligamento capsular do quadril contribui para a estabilidade articular; entretanto, existem poucos estudos sobre a influência da preservação ligamentar no LLD e FO após ATQ.

Métodos:

Realizamos um estudo retrospectivo envolvendo 60 pacientes submetidos à ATQ primária com haste curta por via anterolateral entre junho de 2016 e agosto de 2018. A partir de agosto de 2017, a banda vertical do ligamento iliofemoral e do ligamento pubofemoral na ATQ foram preservadas e compararadas à diferença de LLD e FO radiográficas pré- e pós-operatórias entre os grupos de preservação ligamentar (n = 30) e excisão ligamentar (n = 30).

Resultados:

O LLD pós-operatório foi significativamente menor no grupo de preservação do ligamento que no grupo de excisão do ligamento. A razão de diferença de LLD e FO excessivas foi menor no grupo de preservação do ligamento do que no grupo de excisão do ligamento.

Conclusão:

A preservação do ligamento capsular do quadril suprimiu o aumento da diferença de LLD e FO. Nível de evidência II; Estudo Prognóstico - iIvestigação do Efeito da Característica de um Paciente no Desfecho da Doença.


Full text: Available Index: LILACS (Americas) Type of study: Observational study / Prognostic study Language: English Journal: Acta ortop. bras Journal subject: Orthopedics Year: 2022 Type: Article Affiliation country: Japan Institution/Affiliation country: Centre Takatsuki General Hospital/JP / Kobe University Graduate School of Medicine/JP

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Full text: Available Index: LILACS (Americas) Type of study: Observational study / Prognostic study Language: English Journal: Acta ortop. bras Journal subject: Orthopedics Year: 2022 Type: Article Affiliation country: Japan Institution/Affiliation country: Centre Takatsuki General Hospital/JP / Kobe University Graduate School of Medicine/JP