COMPARISON BETWEEN PORTALS FOR PLACEMENT OF ANCHORS IN SHOULDER INSTABILITY

COMPARAÇÃO ENTRE PORTAIS PARA COLOCAÇÃO DE ÂNCORAS NA INSTABILIDADE DO OMBRO

ABSTRACT

Objective:

to radiographically compare the effects of anchor positioning in the arthroscopic treatment of shoulder instability, in the 3- and 5-o’clock portals.

Methods:

retrospective study of 36 patients, operated by two shoulder surgeons at the Unimed BH hospital, between January 2013 and January 2018. Each surgeon used only one of either the 3- or the 5-o’clock portal. After postoperative radiographs we performed angle comparisons between the greatest glenoidal axis, the angle of anchor insertion and distance from the inferior pole.

Results:

the 5-o’clock portal provided better placement than its 3-o’clock counterpart, which allowed for greater orthogonality in relation to the glenoid rim (p < 0.05).

Conclusion:

the 5-o’clock portal allowed for better anchor placement than the 3 o’clock one. Level of Evidence II, Clinical Trial.

Keywords:
Shoulder Dislocation ; Arthroscopy ; Joint Instability