Quality assessment of radiological measurements of trochlear dysplasia; a literature review

TY - JOUR

T1 - Quality assessment of radiological measurements of trochlear dysplasia;

T2 - a literature review

AU - Paiva, Mathias

AU - Blønd, Lars

AU - Hölmich, Per

AU - Steensen, Robert N

AU - Diederichs, Gerd

AU - Feller, Julian A

AU - Barfod, Kristoffer Weisskirchner

PY - 2018/3/1

Y1 - 2018/3/1

N2 - PURPOSE: To make a systematic review with quality assessments of the known measurements used to describe trochlear dysplasia.METHODS: A systematic literature search was conducted in the databases PubMed and Embase using the search string "trochlea dysplasia OR trochlear dysplasia". Papers were screened for their relevance based on predefined parameters, and all measurements showing a statistical association between trochlear dysplasia and patellar instability were presented. Four experts evaluated the quality of the measures using a purpose-made quality scale.RESULTS: The search generated 600 papers of which eight were chosen for review. Thirty-three unique measurements were identified and described in order of their date of publication. The lateral trochlea inclination was rated highest by the expert panel. The crossing sign, the trochlea bump, the TT-TG distance, the trochlea depth and the ventral trochlea prominence also had high ratings.CONCLUSION: Thirty-three unique measurements were identified with the lateral trochlea inclination as the highest rated measurement by the expert panel, and it is recommended for use in assessment of trochlear dysplasia. The crossing sign, the trochlea bump, the TT-TG, the trochlea depth and the ventral trochlea prominence were also rated well and can be recommended for use.LEVEL OF EVIDENCE: V.

AB - PURPOSE: To make a systematic review with quality assessments of the known measurements used to describe trochlear dysplasia.METHODS: A systematic literature search was conducted in the databases PubMed and Embase using the search string "trochlea dysplasia OR trochlear dysplasia". Papers were screened for their relevance based on predefined parameters, and all measurements showing a statistical association between trochlear dysplasia and patellar instability were presented. Four experts evaluated the quality of the measures using a purpose-made quality scale.RESULTS: The search generated 600 papers of which eight were chosen for review. Thirty-three unique measurements were identified and described in order of their date of publication. The lateral trochlea inclination was rated highest by the expert panel. The crossing sign, the trochlea bump, the TT-TG distance, the trochlea depth and the ventral trochlea prominence also had high ratings.CONCLUSION: Thirty-three unique measurements were identified with the lateral trochlea inclination as the highest rated measurement by the expert panel, and it is recommended for use in assessment of trochlear dysplasia. The crossing sign, the trochlea bump, the TT-TG, the trochlea depth and the ventral trochlea prominence were also rated well and can be recommended for use.LEVEL OF EVIDENCE: V.

KW - Journal Article

KW - Review

U2 - 10.1007/s00167-017-4520-z

DO - 10.1007/s00167-017-4520-z

M3 - Review

C2 - 28315921

SN - 0942-2056

VL - 26

SP - 746

EP - 755

JO - Knee Surgery, Sports Traumatology, Arthroscopy

JF - Knee Surgery, Sports Traumatology, Arthroscopy

IS - 3

ER -