A Case Report on Extruded Disc Acting as Buttonhole reventing Reduction in Traumatic Fracture and Lateral Dislocation of L1-l2 Vertebrae.
BACKGROUND
There is a scanty literature support describing the incidence, mechanism of lateral dislocations of thoracolumbar spine and its management describing the reduction techniques. Hereby we present an interesting case of extruded disc acting as buttonhole preventing the reduction of lateral dislocation of L1-L2 vertebrae and this would be the first of its variety to be described ever in literature.


METHODS
A 30 year old female was referred to our hospital on post trauma day 7 with bilateral fascet fracture and lateral dislocation of L1-L2 vertebrae and fracture humerus on right arm following a road traffic accident. She presented with clinical signs consistent of cauda equina lesion. She underwent surgical reduction and TLIF L1-L2. On one year follow-up X-Rays showed maintenance of dorsolumbar saggital alignment without collapse.


CONCLUSIONS
Dislocations of spine are three column injuries, are highly unstable requiring surgical stabilisation. Posterior instrumentation is the routinely followed technique to achieve reduction and for posterolateral fusion. In this case lateral dislocation was reduced only after removal of the laterally extruded disc. After complete discectomy TLIF was considered a good option for restoring disc space height and maintaining saggital balance.
Department of Orthopaedics, Saveetha Medical College Hospital, Thandalam, Chennai., India.
P Shanmuga
PS
Sundaram
Department of Orthopaedics, Saveetha Medical College Hospital, Thandalam, Chennai., India.
Kalaivanan
K
Kanniyan
Department of Orthopaedics, Saveetha Medical College Hospital, Thandalam, Chennai., India.
Isha
I
Bijarnia
Lateral dislocation of L1-L2; TLIF; extruded disc; posterior lateral fusion; posterior stabilization