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Reliability and validity study of measurements on digital photography to evaluate shoulder balance in idiopathic scoliosis.

Matamalas A, Bagó J, D'Agata E, Pellisé F - Scoliosis (2014)

Bottom Line: No correlation was found between the ShB and the magnitude of the PTC.A statistically significant correlation was found between clinical balance of the shoulders and radiological balance (r between 0.37 and 0.51).The correlation between clinical and radiological balance is statistically significant although moderate/weak.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopaedic Surgery, Hospital Vall d'Hebron, P Vall d'Hebron, 119, 08035 Barcelona, Spain.

ABSTRACT

Objective: To determine the validity of digital photography as an evaluation method for shoulder balance (ShB) in patients with idiopathic scoliosis.

Material and methods: A total of 80 patients were included (mean age 20.3 years; 85% women). We obtained a full x-ray of the vertebral column and front and back clinical photography for all patients. For antero-posterior x-rays we measured the proximal thoracic curve angles (CPT). To evaluate radiological shoulder balance we calculated the clavicle-rib intersection angle (CRIA) and T1-tilt. For clinical photography we measured shoulder height angle (SHA), axilla height angle (AHA) and the left right trapezium angle (LRTA). We analyzed the reliability of the different photographic measurements and the correlation between these and the radiological parameters.

Results: The mean magnitude of PTC, CRIA and T1-tilt were 19°, -0.6° and 1.4° respectively. Mean SHA from the front was -1.7°. All photographic measurements revealed an excellent-near perfect intra and inter-observer reliability in both photographic projections. No correlation was found between the ShB and the magnitude of the PTC. A statistically significant correlation was found between clinical balance of the shoulders and radiological balance (r between 0.37 and 0.51).

Conclusions: Digital clinical photography appears to be a reliable method for objective clinical measurement of ShB. The correlation between clinical and radiological balance is statistically significant although moderate/weak.

No MeSH data available.


Related in: MedlinePlus

Radiological measurements of end vertebra.(a) Lower end vertebra of the proximal thoracic curve (PTC_LEV). (b) Lower end vertebra of the main thoracic curve (MTC_LEV). (c) Lower end vertebra of the thoraco-lumbar/lumbar curve (TLLC_LEV).
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Fig2: Radiological measurements of end vertebra.(a) Lower end vertebra of the proximal thoracic curve (PTC_LEV). (b) Lower end vertebra of the main thoracic curve (MTC_LEV). (c) Lower end vertebra of the thoraco-lumbar/lumbar curve (TLLC_LEV).

Mentions: The following was recorded on postero-anterior x-ray: the magnitude of the proximal thoracic (PTC), main thoracic (MTC) and thoraco-lumbar/lumbar (TLLC) curves. Furthermore, the tilt with respect to the horizontal of T1 (T1-tilt) (Figure 1), the lower end vertebra of the PTC (PTC_LEV), the lower end vertebra of the MTC (MTC_LLV) and lower end vertebra of the TLLC (TLLC_LLV) (Figure 2), was measured. Radiological ShB was calculated by means of the Clavicle-Rib Intersection Angle (CRIA). CRIA is defined as the angle formed by the horizontal and a line that joins the intersection points of the clavicles with the rib-cage (Figure 1).Figure 1


Reliability and validity study of measurements on digital photography to evaluate shoulder balance in idiopathic scoliosis.

Matamalas A, Bagó J, D'Agata E, Pellisé F - Scoliosis (2014)

Radiological measurements of end vertebra.(a) Lower end vertebra of the proximal thoracic curve (PTC_LEV). (b) Lower end vertebra of the main thoracic curve (MTC_LEV). (c) Lower end vertebra of the thoraco-lumbar/lumbar curve (TLLC_LEV).
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4269069&req=5

Fig2: Radiological measurements of end vertebra.(a) Lower end vertebra of the proximal thoracic curve (PTC_LEV). (b) Lower end vertebra of the main thoracic curve (MTC_LEV). (c) Lower end vertebra of the thoraco-lumbar/lumbar curve (TLLC_LEV).
Mentions: The following was recorded on postero-anterior x-ray: the magnitude of the proximal thoracic (PTC), main thoracic (MTC) and thoraco-lumbar/lumbar (TLLC) curves. Furthermore, the tilt with respect to the horizontal of T1 (T1-tilt) (Figure 1), the lower end vertebra of the PTC (PTC_LEV), the lower end vertebra of the MTC (MTC_LLV) and lower end vertebra of the TLLC (TLLC_LLV) (Figure 2), was measured. Radiological ShB was calculated by means of the Clavicle-Rib Intersection Angle (CRIA). CRIA is defined as the angle formed by the horizontal and a line that joins the intersection points of the clavicles with the rib-cage (Figure 1).Figure 1

Bottom Line: No correlation was found between the ShB and the magnitude of the PTC.A statistically significant correlation was found between clinical balance of the shoulders and radiological balance (r between 0.37 and 0.51).The correlation between clinical and radiological balance is statistically significant although moderate/weak.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopaedic Surgery, Hospital Vall d'Hebron, P Vall d'Hebron, 119, 08035 Barcelona, Spain.

ABSTRACT

Objective: To determine the validity of digital photography as an evaluation method for shoulder balance (ShB) in patients with idiopathic scoliosis.

Material and methods: A total of 80 patients were included (mean age 20.3 years; 85% women). We obtained a full x-ray of the vertebral column and front and back clinical photography for all patients. For antero-posterior x-rays we measured the proximal thoracic curve angles (CPT). To evaluate radiological shoulder balance we calculated the clavicle-rib intersection angle (CRIA) and T1-tilt. For clinical photography we measured shoulder height angle (SHA), axilla height angle (AHA) and the left right trapezium angle (LRTA). We analyzed the reliability of the different photographic measurements and the correlation between these and the radiological parameters.

Results: The mean magnitude of PTC, CRIA and T1-tilt were 19°, -0.6° and 1.4° respectively. Mean SHA from the front was -1.7°. All photographic measurements revealed an excellent-near perfect intra and inter-observer reliability in both photographic projections. No correlation was found between the ShB and the magnitude of the PTC. A statistically significant correlation was found between clinical balance of the shoulders and radiological balance (r between 0.37 and 0.51).

Conclusions: Digital clinical photography appears to be a reliable method for objective clinical measurement of ShB. The correlation between clinical and radiological balance is statistically significant although moderate/weak.

No MeSH data available.


Related in: MedlinePlus