Clin Orthop Surg.  2021 Jun;13(2):185-195. 10.4055/cios20123.

Truncal Changes in Patients Suffering Severe Hip or Knee Osteoarthritis: A Surface Topography Study

Affiliations
  • 1Department of Orthopedics and Traumatology, Achilopouleio General Hospital of Volos, Volos, Greece
  • 2Department of Orthopedics and Traumatology, Tzaneio General Hospital of Piraeus, Piraeus, Greece
  • 3First Department of Orthopedics, Athens University Medical School, Athens, Greece
  • 4Department of Anatomy, Medical School, National and Kapodistrian University of Athens, Athens, Greece

Abstract

Background
Osteoarthritis (OA) of the hip and knee is a degenerative disease with complications, including reduced range of motion and pain. Although OA of the hip and knee is common, there are few studies that investigated if patients with this condition had affected morphological truncal parameters. The objectives of this study were to compare the morphology of the spine and the pelvis of patients with hip or knee OA to that of a control group (CG) and to comment on the proposed mechanisms of these changes and the clinical effects on patients.
Methods
This study included three groups of individuals. The first group consisted of 34 patients (15 men and 19 women with a mean age of 67.62 ± 8.28 years) suffering from hip OA. The second group consisted of 45 patients (11 men and 34 women with a mean age of 72.47 ± 7.0 years) suffering from knee OA. These patients were compared with a CG, which consisted of 25 individuals (13 men and 12 women with a mean age of 69.28 ± 10.11 years). The DIERS formetric 4D analysis system was used to calculate several truncal parameters in all planes. All analyses were accomplished using the SPSS ver. 17.0, and p < 0.05 was used to determine statistical significance.
Results
Patients with hip OA presented with significantly increased values than those in the CG for sagittal imbalance, scoliosis angle, vertebral rotation, trunk torsion, and pelvic obliquity, and decreased values than those in the CG for fleche lombaire. Patients with knee OA presented with significantly increased values than those in the CG for sagittal imbalance, apical deviation, scoliosis angle, vertebral rotation, trunk torsion, and pelvic obliquity. Patients with hip or knee OA, compared to the CG, had greater forward inclination of the spine, greater scoliosis, greater vertebral rotation and trunk torsion, and greater obliquity of the pelvis at the frontal plane.
Conclusions
Patients with severe hip or knee OA could have truncal morphology alterations, in addition to reduced hip or knee range of motion and pain. These alterations could cause significant negative effects, which may then seriously affect the patients’ quality of life.

Keyword

Truncal changes; Hip osteoarthritis; Knee osteoarthritis; Surface topography
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