Safe zones in dorsal portals for wrist arthroscopy: a cadaveric study.

The standard dorsal portals are the most commonly used in wrist arthroscopy. This cadaveric study aims to determine safe zones, by quantitatively describing the neurovascular relationships of the dorsal wrist arthroscopy portals: 1-2, 3-4, midcarpal radial, midcarpal ulnar, 4-5, 6-radial and 6-ulnar. The neurovascular structures of twenty-one fresh frozen human cadaveric upper limbs were exposed, while the aforementioned portals were established with needles through portal sites. The minimum distance between portals and: dorsal carpal branch of radial artery, superficial branch of radial nerve, posterior interosseous nerve and dorsal branch of ulnar nerve, were measured accordingly with a digital caliper, followed by statistical analysis of the data. The median and interquartile range for each portal to structures at risk were determined and a safe zone around each portal was established. Free of any neurovascular structure safe zones surrounding 1-2, 3-4, midcarpal radial, midcarpal ulnar, 4-5, 6-radial and 6-ulnar portals were found at 0.46mm, 2.33mm, 10.73mm, 11.01mm, 10.38mm, 5.95mm and 0.64mm respectively. Results of statistical analysis from comparisons between 1-2, 3-4 and midcarpal radial portals, indicated that 1-2 was the least safe. The same analysis among 3-4, midcarpal radial, midcarpal ulnar and 4-5 portals indicated that midcarpal portals were safer, while 3-4 was the least safe. Results among midcarpal ulnar, 4-5, 6-radial and 6-ulnar portals indicated that 6-radial and specifically 6-ulnar were the least safe. This study provides a safe approach to the dorsal aspect of the wrist, enhancing established measurements and further examining safety of the posterior interosseous nerve.

Clinical effects of equine-assisted therapeutic exercises in static and dynamic balance of children with cerebral palsy.

OBJECTIVE: To evaluate the efficacy of equine-assisted therapy for the static and dynamic balance in the rehabilitation of children and adolescents with cerebral palsy maintaining obtained improvement 8-weeks after the end of the intervention. METHOD: The study lasted 28 weeks, of which the intervention lasted 12 weeks. Measurements were taken before, in the middle, after the end of the intervention and follow-up after 12 weeks. Paediatric Balance Scale and dynamic plate were used to evaluate the balance. Wechsler Intelligence Scale for Children (3rd edition) was used to assess mental capacity, and the Gross Motor Function Classification System for the assessment of functional capacity for the participants. Exercises on the horseback were individualised for every participant. RESULTS: The study comprised 27 participants with cerebral palsy. Statistically significant improvements were found for the Paediatric Balance Scale (p<0.001) and the mean dynamic plate pressure for both feet (p<0.05). The Paediatric Balance Scale results remained in the follow-up and were found clinically significant. CONCLUSIONS: The results suggest that this type of approach in rehabilitation can be beneficial with clinical significance for improving the motor dysfunctions and quality of life in cerebral palsy.