Hip muscle and joint contact forces before, 6 and 12 months after minimally invasive periacetabular osteotomy

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Hip muscle and joint contact forces before, 6 and 12 months after minimally invasive periacetabular osteotomy. / Sørensen, Henrik; Skalshøi, Ole; Nielsen, Dennis Brandborg; Jacobsen, Julie Sandell; Søballe, Kjeld; Mechlenburg, Inger.

I: Hip International, Bind 31, Nr. 5, 09.2021, s. 676-682.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

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Sørensen, Henrik ; Skalshøi, Ole ; Nielsen, Dennis Brandborg ; Jacobsen, Julie Sandell ; Søballe, Kjeld ; Mechlenburg, Inger. / Hip muscle and joint contact forces before, 6 and 12 months after minimally invasive periacetabular osteotomy. I: Hip International. 2021 ; Bind 31, Nr. 5. s. 676-682.

Bibtex

@article{1bf63f36abce456db2d0c97ba8781e84,
title = "Hip muscle and joint contact forces before, 6 and 12 months after minimally invasive periacetabular osteotomy",
abstract = "BACKGROUND: Previous studies on different periacetabular osteotomy approaches for correction of hip dysplasia disagree on the time course of normalisation of muscle function postoperatively, some stating that especially hip flexor function is not fully normalised after 12 months.PURPOSE: The purpose of this study was to evaluate hip function during walking before, and 6 and 12 months after minimally invasive periacetabular osteotomy.METHODS: Using conventional 3D inverse dynamics followed by static optimisation, we calculated hip net joint moment and angular impulse, as well as individual muscle forces and hip joint contact force, during walking for 32 patients with hip dysplasia and 32 matched controls.RESULTS: None of the extensor and abductor measures were significantly different between controls and patients tested preoperatively, nor between any of the 3 time points patients were tested. For all of the flexor measures, patients' preoperative values were lower than controls', but had increased to values above the controls 6 months postoperatively.CONCLUSION: Hip muscle function during walking seemed normalised after 6 months after minimally invasive periacetabular osteotomy, while joint contact force did not fully normalise until 12 months postoperatively, perhaps because the hip joint structures need a longer time to heal than the muscles and a potential pain alleviating strategy was still in effect.TRIAL REGISTRY: Movement pattern in patients with hip dysplasia https://clinicaltrials.gov/ct2/show/NCT01344421 , NCT01344421.",
keywords = "Biomechanical modelling, DYSPLASIA, FOLLOW-UP, PELVIC OSTEOTOMY, STRENGTH, WALKING PATTERN, WOMEN, gait analysis, hip dysplasia, joint contact force, muscle force",
author = "Henrik S{\o}rensen and Ole Skalsh{\o}i and Nielsen, {Dennis Brandborg} and Jacobsen, {Julie Sandell} and Kjeld S{\o}balle and Inger Mechlenburg",
year = "2021",
month = sep,
doi = "10.1177/1120700020925411",
language = "English",
volume = "31",
pages = "676--682",
journal = "Hip International",
issn = "1120-7000",
publisher = "Wichtig Publishing",
number = "5",

}

RIS

TY - JOUR

T1 - Hip muscle and joint contact forces before, 6 and 12 months after minimally invasive periacetabular osteotomy

AU - Sørensen, Henrik

AU - Skalshøi, Ole

AU - Nielsen, Dennis Brandborg

AU - Jacobsen, Julie Sandell

AU - Søballe, Kjeld

AU - Mechlenburg, Inger

PY - 2021/9

Y1 - 2021/9

N2 - BACKGROUND: Previous studies on different periacetabular osteotomy approaches for correction of hip dysplasia disagree on the time course of normalisation of muscle function postoperatively, some stating that especially hip flexor function is not fully normalised after 12 months.PURPOSE: The purpose of this study was to evaluate hip function during walking before, and 6 and 12 months after minimally invasive periacetabular osteotomy.METHODS: Using conventional 3D inverse dynamics followed by static optimisation, we calculated hip net joint moment and angular impulse, as well as individual muscle forces and hip joint contact force, during walking for 32 patients with hip dysplasia and 32 matched controls.RESULTS: None of the extensor and abductor measures were significantly different between controls and patients tested preoperatively, nor between any of the 3 time points patients were tested. For all of the flexor measures, patients' preoperative values were lower than controls', but had increased to values above the controls 6 months postoperatively.CONCLUSION: Hip muscle function during walking seemed normalised after 6 months after minimally invasive periacetabular osteotomy, while joint contact force did not fully normalise until 12 months postoperatively, perhaps because the hip joint structures need a longer time to heal than the muscles and a potential pain alleviating strategy was still in effect.TRIAL REGISTRY: Movement pattern in patients with hip dysplasia https://clinicaltrials.gov/ct2/show/NCT01344421 , NCT01344421.

AB - BACKGROUND: Previous studies on different periacetabular osteotomy approaches for correction of hip dysplasia disagree on the time course of normalisation of muscle function postoperatively, some stating that especially hip flexor function is not fully normalised after 12 months.PURPOSE: The purpose of this study was to evaluate hip function during walking before, and 6 and 12 months after minimally invasive periacetabular osteotomy.METHODS: Using conventional 3D inverse dynamics followed by static optimisation, we calculated hip net joint moment and angular impulse, as well as individual muscle forces and hip joint contact force, during walking for 32 patients with hip dysplasia and 32 matched controls.RESULTS: None of the extensor and abductor measures were significantly different between controls and patients tested preoperatively, nor between any of the 3 time points patients were tested. For all of the flexor measures, patients' preoperative values were lower than controls', but had increased to values above the controls 6 months postoperatively.CONCLUSION: Hip muscle function during walking seemed normalised after 6 months after minimally invasive periacetabular osteotomy, while joint contact force did not fully normalise until 12 months postoperatively, perhaps because the hip joint structures need a longer time to heal than the muscles and a potential pain alleviating strategy was still in effect.TRIAL REGISTRY: Movement pattern in patients with hip dysplasia https://clinicaltrials.gov/ct2/show/NCT01344421 , NCT01344421.

KW - Biomechanical modelling

KW - DYSPLASIA

KW - FOLLOW-UP

KW - PELVIC OSTEOTOMY

KW - STRENGTH

KW - WALKING PATTERN

KW - WOMEN

KW - gait analysis

KW - hip dysplasia

KW - joint contact force

KW - muscle force

U2 - 10.1177/1120700020925411

DO - 10.1177/1120700020925411

M3 - Journal article

C2 - 32366122

VL - 31

SP - 676

EP - 682

JO - Hip International

JF - Hip International

SN - 1120-7000

IS - 5

ER -