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Objectives Selective dorsal rhizotomy (SDR) is used to improve spasticity, gait, and pain in children with spastic diplegia. There is growing evidence supporting its long-term benefits in terms of functional outcomes, independence, and quality of life. There is, however, little contemporary work describing the surgical morbidity of this irreversible procedure. The purpose of this study is to evaluate the surgical outcomes and complications of SDR at a single United Kingdom center. Methods Demographics, surgical, postoperative, and follow-up data for all patients undergoing SDR between 2011 and 2016 were collected from medical records. Results Preoperative Gross Motor Function Classification System levels in 150 consecutive patients were II (35%), III (65%), and IV (1%). Median age was 6 years and 58% were male patients. There were no deaths, cerebrospinal fluid leaks, returns to theater, or readmissions within 30 days. There were no new motor or sphincter deficits. Postoperative neuropathic pain was reported by 5.3% and sensory symptoms by 8.7%. Other complications included: postoperative nausea and vomiting (19.3%), superficial wound infection (3.3%), urinary retention (1.3%), headache (6.7%), and urine or chest infection (4.7%). Follow-up data were available for all patients (93% to 12 months, 72% to 24 months). Persistent neuropathic symptoms were reported in 6.5% at 24 months. Conclusions SDR using a single-level approach is a safe procedure with low surgical morbidity. This study complements the growing evidence base in support of SDR for spastic diplegia and should help inform decisions when considering treatment options.

Pyomyositis of the obturator externus muscle is a rare cause of limp and hip pain in children. The exact etiology of the condition remains poorly understood, although a mechanism of transient bacteremia in association with increased muscle susceptibility has been proposed. This case describes the course of a rather than 1 child from presentation to diagnosis and demonstrates the requirement for magnetic resonance imaging in establishing a diagnosis.

The head-at-risk signs are used as prognostic indicators in Legg-Calvé-Perthes disease. These signs have been assessed only once regarding inter-observer reliability, however. Intra-observer reliability seems not to have been studied to date.76 anteroposterior pelvic radiographs of unilateral Legg-Calvé-Perthes disease were assessed by 5 observers on 2 occasions, in order to assess the inter- and intra-observer reliability in identifying head-at-risk signs. The observers included 1 consultant pediatric orthopaedic surgeon, 1 consultant radiologist, 2 specialist registrars and 1 senior house officer. Inter- and intra-observer reliabilities were assessed using the kappa coefficient.The intra-observer reliability was good for lateral subluxation and metaphyseal cystic changes, moderate for lateral calcification, and fair for Gage's sign and horizontal growth plate. The inter-observer reliability was moderate for lateral subluxation, fair for lateral calcification and metaphyseal cystic changes, and slight for Gage's sign and horizontal growth plate.There was considerable variation in the diagnosis of the head-at-risk signs between observers. This makes the classification difficult to use in clinical practice.