RT Journal Article
T1 Quantification of temporomandibular joint space in patients with juvenile idiopathic arthritis assessed by cone beam computerized tomography
A1 Otero, María Florinda
A1 Tahoces, Pablo G.
A1 Mera, Antonio
A1 Dalstra, Michel
A1 Verna, Carlalberta
A1 Pedersen, Thomas Klit
A1 Herlin, Troels
A1 Mira Pérez, Jorge
K1 Cone-beam computed tomography
K1 Imaging
K1 Inflammation
K1 Juvenile idiopathic arthritis
K1 TMJ
AB ObjectiveTo describe a method to calculate the total intra-articular volume (inter-osseous space) of the temporomandibular joint (TMJ) determined by cone-beam computed tomography (CBCT). This could be used as a marker of tissue proliferation and different degrees of soft tissue hyperplasia in juvenile idiopathic arthritis (JIA) patients.Materials and MethodsAxial single-slice CBCT images of cross-sections of the TMJs of 11 JIA patients and 11 controls were employed. From the top of the glenoid fossa, in the caudal direction, an average of 26 slices were defined in each joint (N = 44). The interosseous space was manually delimited from each slice by using dedicated software that includes a graphic interface. TMJ volumes were calculated by adding the areas measured in each slice. Two volumes were defined: Ve−i and Vi, where Ve−i is the inter-osseous space, volume defined by the borders of the fossa and Vi is the internal volume defined by the condyle. An intra-articular volume filling index (IF) was defined as Ve−i/Vi, which represents the filling of the space.ResultsThe measured space of the intra-articular volume, corresponding to the intra-articular soft tissue and synovial fluid, was more than twice as large in the JIA group as in the control group.ConclusionThe presented method, based on CBCT, is feasible for assessing inter-osseus joint volume of the TMJ and delimits a threshold of intra-articular changes related to intra-articular soft tissue proliferation, based on differences in volumes. Intra-articular soft tissue is found to be enlarged in JIA patients
PB Wiley
SN 1601-6335
YR 2023
FD 2023-08-01
LK http://hdl.handle.net/10347/31264
UL http://hdl.handle.net/10347/31264
LA eng
NO Orthod Craniofac Res.  2023;00:1-8
DS Minerva
RD 28 abr 2026