usually involves hyperabduction or hyperextension of the os coxae. 1,2 We report a case of locked overlapping dislocation of the pubic symphysis, in which the pubis was locked into the obturator foramen. This may be the first report of this type of dislocation in the literature. CASE REPORTIn July 2004, a 20-year-old man was admitted to the Government Medical College, Thiruvananthapuram, India following a road traffic accident in which he was trapped between a wall and a reversing lorry. He sustained a low-velocity side-to-side compression injury. The patient was conscious and haemodynamically stable on admission. He was unable to walk or pass urine. A Foley catheter was introduced easily and the drained urine was clear. There was no evidence of external injuries other than a small bruise over the trochanteric area. Both anterior and superior iliac spines were at the same level, and there was no limb-length discrepancy. The patient was comfortable in a supine position, and both legs could be placed flat on the bed, with no apparent deformity. ABSTRACTA 20-year-old man sustained an overlapping dislocation of the pubic symphysis following a lowvelocity side-to-side compression injury. Such injuries are rare in the literature. This case, where the pubis was locked into the obturator foramen, may be the first of its kind to be reported. The pubic symphysis was successfully reduced by levering, with difficulty, the locked pubic body out of the left obturator foramen. As the reduction was unstable, the pubic symphysis was fixed with 2 reconstruction plates. The patient was able to mobilise fully after 3 months and returned to work. At 18 months' follow-up he was able to void urine normally after urethral repair.