IntroductionA neck of femur fracture is a rare injury in the pediatric population and is of foremost importance, as it is associated with a high rate of complications. It usually occurs due to high-velocity trauma or a fall from a height. There is a scarcity of data on risk factors and their role in the prognostication of avascular necrosis. The purpose of the study was to retrospectively analyze the association of various risk factors with avascular necrosis (AVN) of the femoral head in patients with a neck of femur fracture in the pediatric age group. Material and methodsThe study included 21 (13 males and 8 females) pediatric patients with a neck of femur fracture treated at a university-level hospital. The patients were followed for a minimum of one year and the clinico-radiological outcome was analyzed using Ratliff criteria. The association of AVN with age, gender, side, fracture type, and injury with treatment delay, type of reduction, and type of internal fixation used was studied. ResultsThe mean age of the treated patients was 11 (±3.178) years (range=5-16 years). Avascular necrosis was seen in four patients and coxa vara occurred in two of them. A statistically significant association was seen between the Delbet fracture type and avascular necrosis, and three out of four cases of AVN were a Type I fracture (p-value=0.006). Three out of six patients having concomitant skeletal or other organ injuries developed AVN (p-value=0.022). The rate of AVN was higher in patients who were managed after 48 hours of initial injury but no statistically significant correlation was found (p-value=0.314). No statistically significant association with AVN was found between gender, age, type of reduction (closed/open), or the implant used (cannulated screws/k-wires). ConclusionsMultiple independent factors may have a role in the development of AVN of the femoral head in children. Prognostication should not be based on a single factor. Statistically significant results in this study have shown that the type of fracture and concomitant skeletal or other organ injuries are important risk factors and should be kept in mind. All independent risk factors must be noted and should be considered while prognosticating the outcome of a child with a neck of femur fracture.

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Background: Scaphoid non-union often leads to a change in biomechanics of the wrist joint. Various types of bone grafts and different sites of harvest have been described in the literature for scaphoid reconstruction. This study was conducted to assess the clinical and radiological outcome after non-vascularised tri-cortical iliac crest bone graft for non-union of scaphoid waist fractures. Methods: 12 adult patients who underwent reconstruction of scaphoid waist non-union with tricortical iliac crest grafting and internal fixation with headless compression screws (11 cases) and k-wires (1 case) were prospectively analysed. There were 11 males and 1 female (mean age 23.9 years). The mean duration of presentation was 5.7 months following injury. Outcome following surgery were analyzed clinically by range of movements (ROM) and functional scores like DASH and modified Mayo wrist score and radiologically by X-rays and Non contrast CT of the wrist. Radiological assessment included scaphoid length, radio-lunate (RL) angle and scapho-lunate (SL) angle at latest 6 months follow up. Results: Bony union was achieved in 10 cases (union rate 83%). All the cases which achieved union had a significant improvement in radiological and clinical outcome criterias at 6-month follow-up interval. 1 patient had persistent non-union and 1 had k-wire back out with fixation failure. Conclusions: It is important to restore scaphoid length and to correct flexion deformity for a successful outcome. This can reliably be acheived by a carefully planned wedge-shaped iliac crest graft along with secure fixation with a headless compression screw.

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