Introduction. Correction and arthrodesis for cervical kyphosis associated with atetoid cerebral palsy has been considered to be difficult because of their involuntary neck movements and severe deformity. The aim of this study is to evaluate the surgical outcome of midline T-saw laminoplasty and posterior arthrodesis using pedicle screws. Methods. 15 patients were retrospectively reviewed. There were 6 women and 9 men, with a mean age 52.9 years (range 31–71 years). Mean follow-up period was 43 months (range 24–84 months). For clinical evaluation, the Japanese Orthopaedic Association (JOA) score and Barthel index (BI) which shows independence in ADL were used. For radiographic evaluation, change of C2–C7 Cobb angle of sagittal alignment, adjacent segment instability after the surgery were evaluated. Results. The average JOA score improved significantly from 6.2 preoperatively to 10.5 postoperatively. The average BI improved from 44.2 before surgery to 72.5 after surgery. C2–C7 Cobb angle of sagittal alignment measured 12.3 degrees of kyphosis preoperatively and 1.2 degrees of lordosis postoperatively. Solid posterior bony fusion was achieved in all cases. There was two cases of adjacent segmental instability, which required additional surgery. Seven (5.6%) out of the 125 inserted screws showed more than 2mm deviation. However, there were no neurovascular complications during or after surgery in any cases, and all cases maintained strong internal fixation. Conclusion. Midline T-saw laminoplasty and posterior arthrodesis using pedicle screw is a favorable option for the patient with kyphotic deformity associated with atetoid cerebral palsy, as it preserves cervical alignment, and improve neurological status and ADL

Introduction. There is limited evidence assessing the effect of the Ankle Foot Orthosis (AFO) on gait improvements in diplegic cerebral palsy. In particular, the effect of the AFO on vertical forces during gait has not been reported. Appropriate vertical ground reaction forces are crucial in enabling children with CP to walk efficiently. This study investigated the effect of AFO application on the vertical forces in gait, particularly the second vertical peak in force (FZ2) in late stance. The force data was compared with the barefoot walk. Patients and Methods. A retrospective analysis of nineteen children (8M,11F) who met inclusion criteria of a diagnosis of spastic diplegic CP, ability to walk independently barefoot and also using bilateral rigid AFOs were included. Gait data were acquired using the Vicon-Nexus ® motion-capture. Resulting ground reaction force data were recorded. Appropriate statistical methods assessed significance between barefoot and AFO data. Results. 68.4% of subjects experienced increase in FZ2 magnitude in left leg and 63.2% experienced objective increase in right leg after AFO application. Mean increased in FZ2 was 5.33N in left leg and 8.53 N in right leg. Results indicate significant improvement in amplitude of FZ2 generation with AFO application, significantly increased gait efficiency, and a significantly normalized pattern of vertical force produced during gait. Discussion. The AFO is effective in enabling children with diplegic CP to achieve efficient gait patterns. Our study is the first to our knowledge that focuses on the effect of AFO on specifically vertical ground reaction force produced in gait

The equinovarus hind foot deformity is one of the most common deformities in children with spastic paralysis and is usually secondary to cerebral palsy. Split posterior tibialis tendon transfer is performed to balance the flexible spastic varus foot and is preferable to posterior tibialis lengthening, as the muscle does not loose its power and therefore the possibility of a valgus or calcaneovalgus deformity is diminished. The cohort of the study consisted of 50 children with cerebral palsy who underwent split posterior tibial lengthening to manage spastic equinovarus hind foot deformity. Our inclusion criteria were: ambulatory patients with cerebral palsy, age less than 6 years at the time of the operation, varus deformity of the hind foot during gait, flexible varus hind foot deformity, and the follow-up at least 4 years. We retrospectively evaluated 33 ambulant patients with flexible spastic varus hind foot deformity. Twenty-eight patients presented unilateral and 5 bilateral involvement. The mean age at the time of the operation was 10,8 years (6–17) and the mean follow-up was 10 years (4–14). Eighteen feet presented also equinus hind foot deformity, requiring concomitant Achilles cord lengthening. Clinical evaluation was based on the inspection of the patients while standing and walking, the range of motion of the foot and ankle, callus formation and the foot appearance using the clinical criteria of Kling et al. Anteroposterior and lateral weight-bearing radiographs of the talo-first metatarsal angle were measured. The position of the hind foot was evaluated according to the criteria of Chang et al for the surgical outcome. 20 feet were graded excellent, 14 were graded good and 4 were graded poor. Feet with recurrent equinovarus deformity or overcorrection into valgus or calcaneovalgus deformity were considered as poor results. There were 23 feet presenting concomitant cavus foot component that underwent supplementary operations performed at the same time with the index operation. None of the feet presented mild or severe valgus postoperatively, while 4 feet presented severe varus deformity and underwent calcaneocuboid fusion sixteen and eighteen months after the index operation. On the anteroposterior and lateral weight-bearing radiographs the feet with severe varus had a negative talo-first metatarsal angle (mean −26,8 ± 18,4), those with mild varus had a mean of −14,5 ± 12,2. In feet with the hind foot in neutral position the mean value was 5.0 ± 7.4. The results of the feet in patients with hemiplegic pattern were better and significantly different than the diplegic and quadriplegic ones (p = 0.005). The results in our cases were in general satisfactory as 34 out of 38 feet were graded excellent and good. The feet with poor results presented a residual varus deformity due to intraoperative technical errors

Exercise deters systemic diseases such as osteoporosis, sarcopenia, diabetes and obesity. Brief daily periods of low intensity vibration (LIV; <0.4g) is anabolic to bone and muscle, an adaptive response achieved in part by biasing mesenchymal stem cell (MSC) fate selection towards forming higher order connective tissues. In the clinic, LIV has protected the musculoskeletal system even under severe challenges such as Crohn Disease, Cerebral Palsy, and end-stage renal disease. Low magnitude mechanical signals also suppress adipogenesis in the mouse, with reductions in subcutaneous and visceral fat. The starkly distinct response of these tissues (augment bone & muscle; suppress fat) suggests that LIV influences the differentiation pathway of MSCs. Extending this diet induced obesity model to 7 months increased total adiposity, accelerated age-related loss of trabecular bone and severely reduced B & T-cell number in the marrow and blood, shifting hematopoietic stem cells (HSC) towards the myeloid lineage. LIV introduced at 4 months rescued bone and B-cells to those levels measured in regular diet controls. These data emphasise why inactivity can promote osteoporosis, diabetes and obesity, and why a sedentary individual is predisposed to disease sequelae. Protection of MSC and HSC populations by mechanical signals may represent a unique strategy by which adiposity can be suppressed, the immune system protected, and a musculoskeletal system enhanced

The aim of this study was to determine the comorbid risk factors for failure in young patients who undergo fixation of a displaced fracture of the femoral neck. We identified from a prospective database all such patients ≤ 60 years of age treated with reduction and internal fixation. The main outcome measures were union, failure of fixation, nonunion and the development of avascular necrosis.

There were 122 patients in the study. Union occurred in 83 patients (68%) at a mean follow-up of 58 months (18 to 155). Complications occurred in 39 patients (32%) at a mean of 11 months (0.5 to 39). The rate of nonunion was 7.4% (n = 9) and of avascular necrosis was 11.5% (n = 14). Failures were more common in patients over 40 years of age (p = 0.03). Univariate analysis identified that delay in time to fixation (> 24 hours), alcohol excess and pre-existing renal, liver or respiratory disease were all predictive of failure (all p < 0.05). Of these, alcohol excess, renal disease and respiratory disease were most predictive of failure on multivariate analysis.

Younger patients with fractures of the femoral neck should be carefully evaluated for comorbidities that increase the risk of failure after reduction and fixation. In patients with a history of alcohol abuse, renal or respiratory disease, arthroplasty should be considered as an alternative treatment.

In a randomised prospective study, 20 patients with intra-articular fractures of the distal radius underwent arthroscopically- and fluoroscopically-assisted reduction and external fixation plus percutaneous pinning. Another group of 20 patients with the same fracture characteristics underwent fluoroscopically-assisted reduction alone and external fixation plus percutaneous pinning. The patients were evaluated clinically and radiologically at follow-up of 24 months. The Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire and modified Mayo wrist score were used at 3, 9, 12 and 24 months postoperatively. In the arthroscopically- and fluoroscopically-assisted group, triangular fibrocartilage complex tears were found in 12 patients (60%), complete or incomplete scapholunate ligament tears in nine (45%), and lunotriquetral ligament tears in four (20%). They were treated either arthroscopically or by open operation. Patients who underwent arthroscopically- and fluoroscopically-assisted treatment had significantly better supination, extension and flexion at all time points than those who had fluoroscopically-assisted surgery. The mean DASH scores were similar for both groups at 24 months, whereas the difference in the mean modified Mayo wrist scores remained statistically significant.

Although the groups are small, it is clear that the addition of arthroscopy to the fluoroscopically-assisted treatment of intra-articular distal radius fractures improves the outcome. Better treatment of associated intra-articular injuries might also have been a reason for the improved outcome.