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The Journal of Bone & Joint Surgery British Volume
Vol. 74-B, Issue 5 | Pages 683 - 685
1 Sep 1992
Fontijne W de Klerk L Braakman R Stijnen T Tanghe H Steenbeek R van Linge B

In 139 patients with burst fractures of the thoracic, thoracolumbar or lumbar spine, the least sagittal diameter of the spinal canal at the level of injury was measured by computerised tomography. By multiple logistic regression we investigated the joint correlation of the level of the burst fracture and the percentage of spinal canal stenosis with the probability of an associated neurological deficit. There was a very significant correlation between neurological deficit and the percentage of spinal canal stenosis; the higher the level of injury the greater was the probability. The severity of neurological deficit could not be predicted.


The Journal of Bone & Joint Surgery British Volume
Vol. 64-B, Issue 4 | Pages 422 - 428
1 Aug 1982
Spierings E Braakman R

Thirty-seven patients treated for os odontoideum are reviewed. In 20 patients the treatment was conservative and in 17 consisted of occipitocervical or atlanto-axial fusion. Two patients died after the operation and another, who lived abroad, was lost to follow-up. The remaining 34 patients were followed up for an average of eight years: 19 improved, 14 were unchanged and one deteriorated. In the subgroup of 25 patients without cord signs, there were no significant differences between the two modes of treatment. Analysis of the radiological features of the upper cervical spine in 21 patients revealed a minimal sagittal diameter of less than 13 millimetres to be associated with a high risk of permanent cord damage. There was no correlation with the degree of instability per se. On the basis of this analysis, guidelines are suggested for the management of patients with an os odontoideum.


The Journal of Bone & Joint Surgery British Volume
Vol. 50-B, Issue 1 | Pages 52 - 60
1 Feb 1968
Braakman R Vinken PJ

1. In thirty-six out of seventy-two cases of cervical vertebral interlocking, luxation was still present after two weeks ("old luxation"). The principal reasons for overlooking the diagnosis are lack of familiarity with the radiographic appearances and incomplete or inadequate radiographic examination.

2. Failure to identify luxation probably hardly influences the prognosis of the immediate cord lesion; but recovery from the radicular lesion is unfavourably affected, and a progressive cord lesion may occur later when none previously existed.

3. Reduction is advisable if the luxation is not more than six weeks old. Operative reduction is preferred; manual reduction under anaesthesia and caliper traction with heavy weights are less satisfactory alternatives. Reduction is contra-indicated if the luxation is more than six weeks old.

4. Indications for fixation and the choice between internal and external (plaster jacket) fixation are discussed, and also the treatment of stable lesions which have not been reduced.


The Journal of Bone & Joint Surgery British Volume
Vol. 49-B, Issue 2 | Pages 249 - 257
1 May 1967
Braakman R Vinken PJ

Bilateral interlocking of the articular facets of the cervical spinal column results from excessive flexion. Unilateral interlocking (hemiluxation) results from simultaneous excessive flexion and rotation. Patients with hemiluxation of the cervical spine often have only mild complaints and the clinical signs may be slight. The diagnosis is made radiologically, but it is often overlooked.

Various forms of treatment may give good results. In recent hemiluxation, reduction is advisable to promote recovery of radicular symptoms. The effect of reduction on spinal cord symptoms is uncertain. Manual reduction under general anaesthesia is usually successful, with the possible exception of some cases of interlocking at C.6-C.7, or C.7-T.1. Skull traction with weights of 5 to 10 kilograms even when prolonged is hardly ever successful; with weights of 10 kilograms or more there is a chance of success. Surgical reduction is not always necessary. A hemiluxation of more than two weeks' standing may still be reduced but non-operative methods offer little chance of success. In this series there has been no aggravation of the neurological deficit after reduction. Although hemiluxation shows a tendency to spontaneous stabilisation it is wise in our opinion to apply some form of fixation. The selection of the method of fixation depends on the neurological picture and on the estimated degree of instability. The latter depends on the presence or absence of additional damage to the interlocked and adjacent vertebrae. Manual reduction by means of traction in the longitudinal axis of the cervical spine under general anaesthesia with muscle relaxation, followed by immobilisation in a plaster jacket (Minerva type) for three months is successful in many cases. If surgical stabilisation is considered necessary an attempt at manual reduction should be made before operation so that when the patient is placed on the table the cervical spinal canal has regained its normal shape. In general, sufficient stability will have been achieved after approximately three months, so that for hemiluxations of more than three months duration surgical treatment will only rarely be necessary. Figure 11 shows the methods of treatment that we advise.