Isolated Medial Orbital Fracture with Medial Rectus Entrapment: A Case Report

Author's Information:

Sara ENNAKI

Department of Ophthalmology, CHU Ibn Rochd-Hassan II University, Casablanca.

Kawtar El Hadi

Department of Ophthalmology, CHU Ibn Rochd-Hassan II University, Casablanca.

Sami El Hamid

Department of Oral and Maxillofacial Surgery, CHU Ibn Rochd, Hassan II University, Casablanca.

Ali El Hadi

Radiology Department of 20 August 1953 Hospital CHU Ibn Rochd-Hassan II University, Casablanca.

Zyad Laftimi

Department of Ophthalmology, CHU Ibn Rochd-Hassan II University, Casablanca.

Ghizlane Daghouj

Department of Ophthalmology, CHU Ibn Rochd-Hassan II University, Casablanca.

Loubna El Maaloum

Department of Ophthalmology, CHU Ibn Rochd-Hassan II University, Casablanca.

Bouchra Allali

Department of Ophthalmology, CHU Ibn Rochd-Hassan II University, Casablanca

Naima El Benna

Radiology Department of 20 August 1953 Hospital CHU Ibn Rochd-Hassan II University, Casablanca.

Faiçal Slimani

Department of Oral and Maxillofacial Surgery, CHU Ibn Rochd, Hassan II University, Casablanca.

Asmaa El Kettani

Department of Ophthalmology, CHU Ibn Rochd-Hassan II University, Casablanca.a

Vol 05 No 07 (2025):Volume 05 Issue 07 July 2025

Page No.: 177-180

Abstract:

Post-traumatic orbital fractures are common facial injuries, but isolated medial orbital wall fractures are rare and often underdiagnosed. These fractures can result in significant functional impairments, especially when complicated by extraocular muscle entrapment. We report the case of a 43-year-old woman who sustained an isolated medial orbital wall fracture with entrapment of the medial rectus muscle following an assault. She presented with diplopia, strabismus, and restricted ocular motility. CT imaging confirmed the fracture and medial rectus entrapment, which was further assessed by MRI. Surgical management was performed via a transconjunctival approach, involving muscle release and reconstruction with a titanium mesh. Postoperatively, the patient regained orthotropia in primary gaze, although mild motility limitation and diplopia persisted. Isolated medial orbital wall fractures can be easily overlooked, particularly when classic signs like enophthalmos are absent. However, muscle entrapment represents a surgical emergency to prevent permanent dysfunction. This case underscores the crucial role of early radiological evaluation and timely surgical intervention in optimizing functional outcomes. Early diagnosis and intervention are essential to minimize long-term morbidity.

KeyWords:

Medial orbital wall fracture, Orbital trauma, Extraocular muscle entrapment, Diplopia, Orbital surgery, Strabismus

References:

  1. Burnstine MA. Clinical recommendations for repair of orbital facial fractures. Curr Opin Ophthalmol. oct 2003;14(5):236‑40. 
  2. Converse JM. On the treatment of blow-out fractures of the orbit. Plast Reconstr Surg. juill 1978;62(1):100‑4. 
  3. Agha RA, Franchi T, Sohrabi C, Mathew G, Kerwan A, SCARE Group. The SCARE 2020 Guideline: Updating Consensus Surgical CAse REport (SCARE) Guidelines. Int J Surg Lond Engl. déc 2020;84:226‑30. 
  4. Thiagarajah C, Kersten RC. Medial Wall Fracture: An Update. Craniomaxillofacial Trauma Reconstr. oct 2009;2(3):135‑9. 
  5. Dodick JM, Galin MA, Littleton JT, Sod LM. Concomitant medial wall fracture and blowout fracture of the orbit. Arch Ophthalmol Chic Ill 1960. mars 1971;85(3):273‑6. 
  6. Rauch SD. Medial orbital blow-out fracture with entrapment. Arch Otolaryngol Chic Ill 1960. janv 1985;111(1):53‑5. 
  7. Davidson TM, Olesen RM, Nahum AM. Medial orbital wall fracture with rectus entrapment. Arch Otolaryngol Chic Ill 1960. janv 1975;101(1):33‑5. 
  8. Brannan PA, Kersten RC, Kulwin DR. Isolated medial orbital wall fractures with medial rectus muscle incarceration. Ophthal Plast Reconstr Surg. 2006;22(3):178‑83. 
  9. Kim KS, Kim ES, Hwang JH. Combined transcutaneous transethmoidal/transorbital approach for the treatment of medial orbital blowout fractures. Plast Reconstr Surg. mai 2006;117(6):1947‑55. 
  10. Jordan DR, Allen LH, White J, Harvey J, Pashby R, Esmaeli B. Intervention within days for some orbital floor fractures: the white-eyed blowout. Ophthal Plast Reconstr Surg. nov 1998;14(6):379‑90.