Effect of Maxillary Sinus Pneumatization on the Ease of Access to Prelacrimal Recess

Objective: Prelacrimal recess approach can be used to access lesions of the anterior wall of the maxillary sinus (MS). Moreover, the longer the prelacrimal recess window distance (PLRWD), the easier it is to access the anterior wall. This study aimed to define the correlation between maxillary sinus...

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Veröffentlicht in:Ear, nose, & throat journal nose, & throat journal, 2024-08, Vol.103 (8), p.504-508
Hauptverfasser: Son, Sang-Jun, Koo, Hyung-Bon, Lee, Jae-Hoon
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Sprache:eng
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Zusammenfassung:Objective: Prelacrimal recess approach can be used to access lesions of the anterior wall of the maxillary sinus (MS). Moreover, the longer the prelacrimal recess window distance (PLRWD), the easier it is to access the anterior wall. This study aimed to define the correlation between maxillary sinus pneumatization (MSP) and PLRWD, a previously defined anatomic factor predictive of the ease of prelacrimal recess approach (PLRA). Methods: In total, 506 sides of 253 participants were studied. In the axial image, the PLRWD, the distance between the anterior wall of the MS and the lacrimal duct, was measured through radioanatomical analysis and classified as type I (7 mm). On the coronal image, the distance between the nasal floor and the lower end of the MS was measured. When MSP did not reach the nasal floor, it was classified as grade I, as grade II when MSP reached the nasal floor, and grade III when the MS was pneumatized below the nasal floor. Results: Type I included 115 sides (22.7%); type II, 277 sides (54.7%); and type III, 114 sides (22.5%). Grade I was observed in 58 sides (11.5%), grade II in 38 sides (7.5%), and grade III in 410 sides (81.0%). The mean PLRWD of grade I was 2.35 ± 2.41 mm, II was 3.37 ± 2.46 mm, and III was 5.55 ± 2.54 mm, showing a significant difference (P 
ISSN:0145-5613
1942-7522
1942-7522
DOI:10.1177/01455613231174138