G. R. Taylor

MONITORING THE TREATMENT OF DEVELOPMENTAL DYSPLASIA OF THE HIP WITH THE PAVLIK HARNESS: THE ROLE OF ULTRASOUND

We report the six-year results of a prospective, controlled demographic trial of developmental dysplasia of the hip (DDH) treated in the Pavlik harness using ultrasound supervision. Our aim was to assess the value of ultrasound and its role in monitoring reduction in the harness, in terms of progression or failure of reduction at an early state. From 1988 to 1994, a total of 221 patients with 370 ultrasonographically abnormal hips was treated in the Pavlik harness. This represents a treatment rate for the Southampton district of 5.1 per 1000 live births. Sixteen hips in 12 patients were not reduced in the harness and required surgical treatment; 95.7% were successfully reduced. One case of mild avascular necrosis (0.3%) was identified in those treated by harness alone. Of the 221 patients 87.8% remain under radiological review, with 3.2% of affected hips showing continued, mild acetabular dysplasia. We conclude that ultrasound monitoring has led to an acceptably low level of intervention, a high reduction rate and minimal iatrogenic complications. The trial is continuing.

The natural history of developmental dysplasia of the hip after early supervised treatment in the Pavlik harness

Between June 1988 and December 1997, we treated 332 babies with 546 dysplastic hips in a Pavlik harness for primary developmental dysplasia of the hip as detected by the selective screening programme in Southampton. Each was managed by a strict protocol including ultrasonic monitoring of treatment in the harness. The group was prospectively studied during a mean period of 6.5 ± 2.7 years with follow-up of 89.9%. The acetabular index (AI) and centre-edge angle of Wiberg (CEA) were measured on annual radiographs to determine the development of the hip after treatment and were compared with published normal values.The harness failed to reduce 18 hips in 16 patients (15.2% of dislocations, 3.3% of DDH). These required surgical treatment. The development of those hips which were successfully treated in the harness showed no significant difference from the normal values of the AI for the left hips of girls after 18 months of age. Of those dysplastic hips which were successfully reduced in the harness, 2.4% show...

Management of irritable hip: a review of hospital admission policy.

The case notes of all children admitted during the preceding five years for observation with painful hips (509 patients) were analysed to determine significant diagnostic factors and thus to design and admission policy. Most orthopaedic disorders (62 patients) were apparent on the initial radiographs, with the important exception of osteomyelitis/septic arthritis (21 patients). The remaining 426 patients were diagnosed by exclusion as having an irritable hip. The latter two groups were similar with respect to age, sex, and duration and nature of symptoms. A number of clinical features and laboratory investigations recorded within 12 hours of admission, however, were shown to have significant discriminative value. These were severe spasm, tenderness, pyrexia > or = 38 degrees C, and an erythrocyte sedimentation rate of > or = 20 mm/hour (the white cell count was not significant). Combination of any two of these produced a specificity and sensitivity for sepsis of 91% and 95% respectively (95% confidence interval 0.64 to 0.97). A protocol designed from this data analysis is now being tested and is expected to result in a significant reduction in admission rates.

A review of K-wire related complications in the emergency management of paediatric upper extremity trauma

INTRODUCTION Kirschner wires (K-wires) are immensely versatile in fracture fixation in the paediatric population. Complications associated with the K-wiring procedure vary from minor to a life-threatening. The aim of this study was to analyse the outcome of fracture fixation using K-wires in all types of upper-extremity fractures in children in order to assess the incidence and type of complication critically. PATIENTS AND METHODS Between September 1999 and September 2001, we retrospectively reviewed a consecutive series of 105 fractures in 103 paediatric trauma cases (below 12 years) treated with K-wires in a university teaching hospital. The case notes and radiographs were reviewed by an independent single assessor. All paediatric, acute, upper-extremity, displaced and unstable fractures were included. All elective procedures using K-wires were excluded. RESULTS We observed an overall 32.3% complication rate associated with the K-wiring procedure affecting 34 pins (24 patients). Wound-related complications included over-granulation in 13 cases, pin tract infection in 6 cases and hypersensitive scar in 1 case. Neurapraxia was found in 3 patients and axonotmesis in 1 patient. Wire loosening at the time of removal in 14 cases and retrograde wire migration in 4 cases were observed. There were 2 cases of penetrating tendonitis and 1 case of osteomyelitis. There was a higher complication rate in terms of wire loosening and pin tract infection when the K-wires: (i) were left outside the skin compared with those placed under the skin; (ii) stayed longer in the patients; and (iii) did not traverse both cortices. There were more complications in complex operations performed by senior surgeons (P = 0.056). The duration of K-wire stay, associated co-morbidity and anatomical location were statistically insignificant. CONCLUSIONS Complications are part of operative procedures; an important point to consider is what causes them in order to take preventative measures. We recommend that the risks and complications should be explained to parents during the consenting process to allay their anxiety, irrespective of the fact that most complications are minor and of short duration.