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Jens Randel Nyengaard

Cyst volume in the acetabulum and femoral head decreases after periacetabular osteotomy

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Cyst volume in the acetabulum and femoral head decreases after periacetabular osteotomy. / Mechlenburg, Inger; Nyengaard, Jens R; Gelineck, John; De Raedt, Sepp; Søballe, Kjeld.

In: Hip International, Vol. 22, No. 3, 2014, p. 313-8.

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@article{1a13c1ac879f454fa2887a0aec01a024,
title = "Cyst volume in the acetabulum and femoral head decreases after periacetabular osteotomy",
abstract = "In a series of 26 consecutive patients scheduled for periacetabular osteotomy (PAO), we examined how many had acetabular or femoral head cysts, investigated whether the volume of the cysts changed after PAO, calculated the precision of the method applied and scored their hip symptoms. Magnetic resonance imaging (MRI) was performed before PAO and at 1 and 2½ years post-operatively. The number of cysts was noted and the total cyst volume in each patient was estimated with a design-based stereological method and the precision of the method was calculated.The patients filled out The Hip disability and Osteoarthritis Outcome Score (HOOS) four years after PAO. Preoperatively, 12 patients had acetabular or femoral head cysts (22 cysts), 1 year postoperative, 15 patients had cysts (23 cysts) and 2½ years postoperative, 15 patients had cysts (18 cysts). Mean total acetabular cyst volume per patient decreased significantly from 1 year (1.96 cm³, SD 3.97) to 2½ years (0.96 cm³, SD 1.70) after PAO (p= 0.04). The Limits Of Agreement for measurement of cyst volume was ± 1.73 cm³. The mean subscore for Pain was 75, Symptoms 75, ADL 83, Sport/recreation 63 and Quality Of Life 62. The number of patients having cysts did not change notably after PAO. But the mean total cyst volume/patient decreased significantly between 1 and 2½ years after PAO. The PAO patients rated their hip comparable to the scores for patients six months after total hip replacement.",
keywords = "Acetabulum, Activities of Daily Living, Adult, Bone Cysts, Disability Evaluation, Female, Femur Head, Hip Dislocation, Congenital, Hip Joint, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Osteotomy, Outcome Assessment (Health Care), Pain Measurement, Pain, Postoperative, Prospective Studies, Quality of Life, Recovery of Function, Reproducibility of Results, Young Adult",
author = "Inger Mechlenburg and Nyengaard, {Jens R} and John Gelineck and {De Raedt}, Sepp and Kjeld S{\o}balle",
year = "2014",
doi = "10.5301/HIP.2012.9248",
language = "English",
volume = "22",
pages = "313--8",
journal = "Hip International",
issn = "1120-7000",
publisher = "Wichtig Publishing",
number = "3",

}

RIS

TY - JOUR

T1 - Cyst volume in the acetabulum and femoral head decreases after periacetabular osteotomy

AU - Mechlenburg, Inger

AU - Nyengaard, Jens R

AU - Gelineck, John

AU - De Raedt, Sepp

AU - Søballe, Kjeld

PY - 2014

Y1 - 2014

N2 - In a series of 26 consecutive patients scheduled for periacetabular osteotomy (PAO), we examined how many had acetabular or femoral head cysts, investigated whether the volume of the cysts changed after PAO, calculated the precision of the method applied and scored their hip symptoms. Magnetic resonance imaging (MRI) was performed before PAO and at 1 and 2½ years post-operatively. The number of cysts was noted and the total cyst volume in each patient was estimated with a design-based stereological method and the precision of the method was calculated.The patients filled out The Hip disability and Osteoarthritis Outcome Score (HOOS) four years after PAO. Preoperatively, 12 patients had acetabular or femoral head cysts (22 cysts), 1 year postoperative, 15 patients had cysts (23 cysts) and 2½ years postoperative, 15 patients had cysts (18 cysts). Mean total acetabular cyst volume per patient decreased significantly from 1 year (1.96 cm³, SD 3.97) to 2½ years (0.96 cm³, SD 1.70) after PAO (p= 0.04). The Limits Of Agreement for measurement of cyst volume was ± 1.73 cm³. The mean subscore for Pain was 75, Symptoms 75, ADL 83, Sport/recreation 63 and Quality Of Life 62. The number of patients having cysts did not change notably after PAO. But the mean total cyst volume/patient decreased significantly between 1 and 2½ years after PAO. The PAO patients rated their hip comparable to the scores for patients six months after total hip replacement.

AB - In a series of 26 consecutive patients scheduled for periacetabular osteotomy (PAO), we examined how many had acetabular or femoral head cysts, investigated whether the volume of the cysts changed after PAO, calculated the precision of the method applied and scored their hip symptoms. Magnetic resonance imaging (MRI) was performed before PAO and at 1 and 2½ years post-operatively. The number of cysts was noted and the total cyst volume in each patient was estimated with a design-based stereological method and the precision of the method was calculated.The patients filled out The Hip disability and Osteoarthritis Outcome Score (HOOS) four years after PAO. Preoperatively, 12 patients had acetabular or femoral head cysts (22 cysts), 1 year postoperative, 15 patients had cysts (23 cysts) and 2½ years postoperative, 15 patients had cysts (18 cysts). Mean total acetabular cyst volume per patient decreased significantly from 1 year (1.96 cm³, SD 3.97) to 2½ years (0.96 cm³, SD 1.70) after PAO (p= 0.04). The Limits Of Agreement for measurement of cyst volume was ± 1.73 cm³. The mean subscore for Pain was 75, Symptoms 75, ADL 83, Sport/recreation 63 and Quality Of Life 62. The number of patients having cysts did not change notably after PAO. But the mean total cyst volume/patient decreased significantly between 1 and 2½ years after PAO. The PAO patients rated their hip comparable to the scores for patients six months after total hip replacement.

KW - Acetabulum

KW - Activities of Daily Living

KW - Adult

KW - Bone Cysts

KW - Disability Evaluation

KW - Female

KW - Femur Head

KW - Hip Dislocation, Congenital

KW - Hip Joint

KW - Humans

KW - Magnetic Resonance Imaging

KW - Male

KW - Middle Aged

KW - Osteotomy

KW - Outcome Assessment (Health Care)

KW - Pain Measurement

KW - Pain, Postoperative

KW - Prospective Studies

KW - Quality of Life

KW - Recovery of Function

KW - Reproducibility of Results

KW - Young Adult

U2 - 10.5301/HIP.2012.9248

DO - 10.5301/HIP.2012.9248

M3 - Journal article

C2 - 22740278

VL - 22

SP - 313

EP - 318

JO - Hip International

JF - Hip International

SN - 1120-7000

IS - 3

ER -