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Orthopaedic Proceedings
Vol. 88-B, Issue SUPP_II | Pages 291 - 291
1 May 2006
Trehan R Daly K
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Treatment of unicameral bone cysts ranges from injections of corticosteroids, bone marrow with allogenic demineralised bone matrix to open bone grafting procedure. These procedures have their own disadvantages in form of infection, fracture, long-term morbidity, repeat procedure and high recurrence rate.

We describe here a new, technically simple and safe technique with minimal morbidity and short hospital stay. We treated 2 young children with active bone cyst (that did not heal with pathological fractures in past 18 months) by this technique and in both the cases bone cyst healed without any complications.

In patient with active bone cyst at the proximal end of humerus, under image intensifier control distal humerus perforated with 3.5 mm drill and a pre bent 2.5 mm, flexible, intramedullary nail passed into the medullary canal and then to proximal end of bone cyst. Nail now rotated sequentially at 5 mm intervals to destroy the architecture of the cyst completely until no resistance is felt. Wound closed with skin sutures and steristrips. Post operatively both children were comfortable and discharged home next day. In both cases cyst healed uneventfully.

Though we have small experience but technique looks very promising.


Orthopaedic Proceedings
Vol. 87-B, Issue SUPP_III | Pages 238 - 238
1 Sep 2005
Ross E Daly K Norris H McCollum C
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Study Design: Case report of four consecutive case reports of revision surgery for anterior dislocation of the Acroflex disc (DePuy Acromed, MA, USA) all of whom required vascular surgery are described.

Objective: To describe vascular complications of explanting an artificial inter-vertebral disc replacement following spontaneous anterior displacement.

Subjects: Four consecutive patients required explantation of the Acroflex disc. Two patients were male and two female with median age 44 years (range 33–51). All patients gave informed consent to enter a clinical trial, which had ethical approval.

Outcome measures: Symptom relief, vascular injury and deep vein thrombosis.

Results: All patients gained good symptomatic relief following disc replacement. Four patients suffered anterior displacement of the disc with a deterioration in symptoms during the 1st year. Three suffered vascular damage to the iliac vessels. In two cases division and re-anastomosis of the iliac vein was required to allow disc removal. Ilio-femoral deep vein thrombosis occurred pre-operatively in one patient and post-operatively in a second, no deaths occurred.

Conclusions: Anterior intervertebral disc displacement is associated with vascular injury. Preventing anterior disc displacement must form an essential part of disc design with (i) rapid fixation to bone and (ii) a failsafe design to prevent local damage in case of failure. In the case of displacement, disc removal should be planned and performed with a vascular surgeon.


The Journal of Bone & Joint Surgery British Volume
Vol. 86-B, Issue 1 | Pages 95 - 98
1 Jan 2004
Riding G Daly K Hutchinson S Rao S Lovell M McCollum C

Fat embolism occurs following fractures of a long bone or arthroplasty. We investigated whether paradoxical embolisation through a venous-to-arterial circulation shunt (v-a) could lead to cerebral embolisation during elective hip or knee arthroplasty.

Transcranial Doppler ultrasound (TCD), following the intravenous injection of microbubble contrast, identified the presence of a shunt in 41 patients undergoing hip (n=20) or knee (n=21) arthroplasty. Intra-operative cerebral embolism was detected during continuous TCD monitoring. Of the 41 patients, 34 had a v-a shunt of whom 18 had an embolism and embolism only occurred in patients with a shunt (p = 0.012). Spontaneous and larger shunts were associated with a greater number of emboli (rs = 0.67 and rs = 0.71 respectively, p < 0.01). Observations in two patients with large spontaneous shunts revealed 368 and 203 emboli and unexplained post-operative confusion and pancreatitis.

Paradoxical cerebral embolisation only occurred in patients with a shunt and may explain both postoperative confusion and fat embolism syndrome following surgery.


Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_I | Pages 28 - 28
1 Jan 2003
Solan M Rees R Daly K
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The use of a forearm cast for paediatric buckle fractures of the distal radius is widespread practice. These fractures do not displace and follow-up in Fracture Clinic is only for cast removal. This may mean missed school for the child, or work for parents.

Modern materials allow a robust lightweight back-slab to be used for protection of these stable, though painful, injuries. Unlike a plaster of Paris backslab, Prelude? (Smith and Nephew) is removed by unwrapping the outer bandage. Parents can do this at home.

We prospectively studied 41 consecutive children aged 12 or less with buckle fractures of the distal radius, presenting to Fracture Clinic. After the diagnosis of isolated buckle fracture was confirmed, a Prelude? cast was applied. Parents were given a full explanation and written instructions, which were also sent to the GP. Telephone follow-up was carried out at 3–4 weeks.

Forty of forty-one parents expressed satisfaction with both the treatment and the instructions. The parents of one patient misunderstood the instructions, re-presented to fracture clinic and were dissatisfied for this reason.

With modern casting materials and adequate instructions at Fracture Clinic, routine follow-up of patients with buckle fractures is unnecessary. Resource savings can be made in this way with no compromise to patient care and increased patient/ parent satisfaction.


The Journal of Bone & Joint Surgery British Volume
Vol. 81-B, Issue 3 | Pages 380 - 384
1 May 1999
Daly K Bruce C Catterall A

The surgical treatment of Perthes’ disease by femoral or innominate osteotomy is not as effective in those over the age of eight years as it is in the younger child. This has prompted the search for other types of management in those who are older. The preliminary results of the use of a lateral shelf acetabuloplasty for such cases have shown encouraging results at two years. The concern with such an operation is that it might interfere with the growth of the outer aspect of the acetabulum and so prejudice the long-term outcome. We describe a review at maturity of 26 children presenting with early disease after the age of eight years who were treated by lateral shelf acetabuloplasty. The results suggest that the outcome is improved; 22 of 27 hips were rated as Stulberg groups 1 to 3. Poor results occurred in children, particularly girls, presenting with Group-4 disease over the age of 11 years.


The Journal of Bone & Joint Surgery British Volume
Vol. 79-B, Issue 2 | Pages 339 - 339
1 Mar 1997
DALY K FIXSEN JA


The Journal of Bone & Joint Surgery British Volume
Vol. 78-B, Issue 4 | Pages 530 - 534
1 Jul 1996
Daly K Gill P Magnussen PA Simonis RB

We reviewed 26 consecutive men of mean age 28 years who had had wedge bone grafting and Herbert screw fixation for symptomatic established nonunion of the waist of the scaphoid. The period between injury and operation averaged 30 months (10 to 96), and 11 of the 26 patients had had previous operations, seven with bone grafts.

At a mean follow-up of 14 months (6 to 42) 25 fractures (95%) had united at a median time of four months. Symptoms were improved in all patients. The outcome was not related to the time between injury and surgery or to pre-existing degenerative changes. Previous surgery carried a worse prognosis.

The technique is difficult but can achieve union even when previous surgery and bone grafting have failed. The usual result is improved function and some relief of pain.


The Journal of Bone & Joint Surgery British Volume
Vol. 78-B, Issue 3 | Pages 477 - 480
1 May 1996
Daly K Wisbeach A Sanpera I Fixsen JA

We report a postal survey of 59 families of children with osteogenesis imperfecta. From the 51 replies we collected data on developmental milestones and walking ability and related them to the Sillence and the Shapiro classifications of osteogenesis imperfecta. Twenty-four of the patients had been treated by intramedullary rodding.

Both classifications helped to predict eventual walking ability. We found that independent sitting by the age of ten months was a predictor for the use of walking as the main means of mobility with 76% attaining this. Of the patients who did not achieve sitting by ten months, walking became the main means of mobility in only 18%. The developmental pattern of mobility was similar in the rodded and non-rodded patients.