Korean J Ophthalmol.  2014 Jun;28(3):265-267. 10.3341/kjo.2014.28.3.265.

Traumatic Rupture of the Superior Oblique Muscle Tendon

• Chung HJ
• Baek JW
• Lee YC

• KMID: 2133326
• DOI: http://doi.org/10.3341/kjo.2014.28.3.265

Abstract

Traumatic rupture of the superior oblique muscle is rare. We report a case of a 54-year-old man injured by the metal hook of a hanger, resulting in a rupture of the superior oblique muscle tendon. He complained of torsional diplopia when in the primary position. The distal margin of the superior oblique muscle was reattached to sclera 5 and 9 mm apart from the medial insertion of the superior rectus muscle. One week after the operation, torsional diplopia disappeared. However, a 4-prism diopter ipsilateral hypertropia was observed. Three months later, hypertropia gradually increased to 20 prism dioptors and the second operation was done to correct vertical diplopia.

Keyword

Diplopia; Reattachment; Strabismus; Superior oblique rupture; Wounds and injuries

MeSH Terms

Diplopia/etiology/physiopathology/surgery
Eye Injuries/complications/*diagnosis/surgery
*Eye Movements
Humans
Male
Middle Aged
Oculomotor Muscles/*injuries/physiopathology/surgery
Ophthalmologic Surgical Procedures/*methods
Strabismus/etiology/physiopathology/surgery
Tendon Injuries/complications/*diagnosis/surgery

Figure

• 

  Fig. 1 Photograph of ruptured superior oblique (SO) muscle tendon, which protruded inferionasally through the lacerated conjunctiva (A). Schematic diagram of the anterior and posterior borders of the SO muscle tendon, which were attached 5 and 9 mm apart from the nasal margin of the superior rectus (SR) muscle insertion (B). Slashed area is the mimetic diagram of the protruded SO muscle.

• 

  Fig. 2 Preoperative (A) and postoperative (B) fundus photographs. Preoperative excyclotorsion of the right eye improved.

Reference

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