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The Journal of Bone & Joint Surgery British Volume
Vol. 82-B, Issue 7 | Pages 1042 - 1045
1 Sep 2000
Gehri R Zanetti M Boos N

There have been no previous reports of a spinal subdural haematoma occurring as a complication of spinal surgery. We highlight the pitfalls in the diagnosis and management of a subacute subdural haematoma resulting from a dural tear which occurred as a surgical complication of microdiscectomy.


The Journal of Bone & Joint Surgery British Volume
Vol. 79-B, Issue 5 | Pages 812 - 814
1 Sep 1997
Boos N Goytan M Fraser R Aebi M

We report an unusual presentation of a solitary plasma-cell myeloma of the spine in an adolescent patient. Our case indicates the need to consider plasma-cell myeloma as a differential diagnosis even in younger patients.


The Journal of Bone & Joint Surgery British Volume
Vol. 79-B, Issue 2 | Pages 247 - 253
1 Mar 1997
Boos N Krushell R Ganz R Müller ME

We compared 74 total hip arthroplasties (THAs) carried out after previous proximal femoral osteotomy with a diagnosis-matched control group of 74 primary procedures performed during the same period. We report the perioperative results and the clinical and radiological outcome at five to ten years.

We anticipated a higher rate of complications in the group with previous osteotomy, but found no significant difference in the rate of perioperative complications (11% each) or in the septic (8% v 3%) and aseptic (4% each) revision rates. There was a trend towards improved survival in the group without previous osteotomy (90% v 82%), but this difference was not statistically significant. The only significant differences were a higher rate of trochanteric osteotomy (88% v 14%) and a longer operating time in the osteotomy group.

Our study indicates that THA after previous osteotomy is technically more demanding but not necessarily associated with a higher rate of complications. Furthermore, proximal femoral osteotomy does not jeopardise the clinical and radiological outcome of future THA enough to exclude the use of osteotomy as a therapeutic alternative in younger patients.


The Journal of Bone & Joint Surgery British Volume
Vol. 79-B, Issue 2 | Pages 204 - 205
1 Mar 1997
Boos N Khazim R Kerslake RW Webb JK Mehdian H

We describe an unusual injury to the upper cervical spine sustained during ejection from an aircraft. MRI provided an accurate and direct diagnosis of the severe ligamentous injuries.