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Medial placement of trapezoid tunnel leads to higher reduction loss in acute acromioclavicular joint dislocation treated with anatomic coracoclavicular fixation.
Rojas, J Tomás; Oyarzún, Andrés; Muñoz, J Tomás; García de la Pastora, Diego; Canals, Andrea; Viacava, Alejandro; Carreño, Hector; Águila, Raúl.
Afiliación
  • Rojas JT; Shoulder and Elbow Team, Clínica Santa María, Santiago, Chile.
  • Oyarzún A; Shoulder and Elbow Team, Hospital San José, Santiago, Chile.
  • Muñoz JT; Resident of Orthopedic Surgery, Universidad de Chile, Santiago, Chile.
  • García de la Pastora D; Resident of Orthopedic Surgery, Universidad de los Andes, Santiago, Chile.
  • Canals A; Resident of Sport Medicine, Universidad de los Andes, Santiago, Chile.
  • Viacava A; Academic unit, Clínica Santa María, Santiago, Chile.
  • Carreño H; School of Public health, Universidad de Chile, Santiago, Chile.
  • Águila R; Shoulder and Elbow Team, Clínica Santa María, Santiago, Chile.
Shoulder Elbow ; 16(3): 265-273, 2024 Jul.
Article en En | MEDLINE | ID: mdl-38818098
ABSTRACT

Aim:

To analyze the association between clavicular tunnel positioning and postoperative reduction loss in patients with acute acromioclavicular (AC) joint dislocation treated with anatomic coracoclavicular (CC) fixation using double clavicular tunnels.

Methods:

A retrospective review of patients with AC joint dislocation, treated with anatomic CC fixation using double clavicular tunnels, was conducted. Patients with pre-operative, immediate post-operative, and final follow-up Zanca-view X-rays were included. On each X-ray, the obtained measures included distance from lateral border of clavicle to trapezoid and conoid tunnels, distance between tunnels, clavicle length, and CC distance of affected and un-affected sides. Loss of reduction was calculated as CC distance difference between immediate and final post-operative X-rays. Association between reduction loss and tunnel positioning was analyzed.

Results:

Conoid, trapezoid and tunnel ratios were 24% ± 4, 15% ± 3, and 9% ± 2, respectively. Significant reduction loss was seen in 21(45.7%) patients. Significantly higher probabilities of reduction loss were associated with trapezoid tunnels placed medial to 24 mm (30.8% vs 65.0%, OR 4.2 (IC95% 1.2-14.4), p 0.024) or 15% of the clavicle length (32.1% vs 66.7%, OR 4.2 (IC 95% 1.2-14.9), p 0.025).

Conclusions:

Trapezoid tunnels placed medial to 24 mm or 15% medial to clavicle length could lead to higher probabilities of significant reduction loss. These findings support the importance of clavicular tunnels' proper placement for decreasing significant reduction loss.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Shoulder Elbow Año: 2024 Tipo del documento: Article País de afiliación: Chile Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Shoulder Elbow Año: 2024 Tipo del documento: Article País de afiliación: Chile Pais de publicación: Estados Unidos