Cervical pedicle screw has been shown to provide stronger fixation than other methods. Due to these virtue of biomechanical characteristic, pedicle screw fixation can be used in a wide range of cervical spinal disorders, and excellent clinical results have been reported. However, this procedure is technically demanding because of the great variation in pedicle dimension and angulations between ...

OBJECTIVE To assess the amount of maxillary and mandibular inter-radicular bone mass and determine the most reliable mini-screw placement sites. MATERIALS AND METHODS Retrospective Cone Beam Computed Tomography (CBCT) images of 40 Angle Class I subjects (20 females, 20 males, aged 16 to 32) were obtained. Measurements on the buccal (BI), medial (MI) and lingual (LI) sides of the inter-radicul...

AIM Conventionally, noncompliance distal movement of molars relies exclusively on intraoral anchorage. The distal screw, a distal jet appliance supplemented by two paramedian mini-implants, is an innovative alternative. The aim of this study was to evaluate the suitability of this device to move molars bodily and distally. METHODS The effects of the distal screw were evaluated in a sample of ...

BACKGROUND The current standard of care for operative repair of scaphoid fractures involves reduction and internal fixation with a single headless compression screw. However, a compression screw in isolation does not necessarily control rotational stability at a fracture or nonunion site. The single screw provides rotational control through friction and bone interdigitation from compression at ...

OBJECTIVE The purpose of this study was to evaluate the surgical technique and outcome of mini-open posterior lumbar interbody fusion (PLIF) under circumferential releasing technique. METHODS Fourty patients who underwent mini-open PLIF using the percutaneous screw fixation system for Meyerding Grade II spondylolisthesis or more were retrospectively studied. After complete circumferential rel...

 Abstract Reports have shown that molars can be distalized successfully with virtually no orthodontic anchorage loss with an intraosseous anchorage, even with fully erupted second molars. The purpose of this study was evaluating the effects of mini-screws as skeletal anchorage for upper molar distalization. In this case series, three patients needing maxillary first molar distalization,...

This case report outlines the possibility of accelerated tooth movement with the combination of microosteoperforation and mini-screws. A 14-year-old male patient presented Class II malocclusion with maxillary incisor protrusion. Upper first premolars were extracted, and after leveling, accelerated canine distalization started. For pre- and postdistalization times, amount of distalization, perio...

Background. Anterior disc displacement without reduction of the temporomandibular joint (TMJ) is a relatively common finding, and generally, the treatment option for these patients involves surgery, which can include multiple procedures such as arthrocentesis, eminectomy, vertical subsigmoid osteotomy, or meniscopexy. Objective. The purpose of this study is to clinically evaluate the effectiven...

The treatment of atlantoaxial instability by means of posterior transarticular screw fixation combined with a Gallie fusion is an established method when direct anterior odontoid screw fixation is not indicated or has failed. In this retrospective study, the results of a modified percutaneous mini-open transarticular C1-C2 screw fixation are presented. Between February 1998 and March 2006, 47 p...

To prevent adjacent disc problems after spinal fusion, a pedicle screw with a mobile junction between the head and threaded shaft was newly developed. The threaded shaft of the screw has 10 degrees mobility in all directions, but its structure is to prevent abnormal translation and tilting. This screw was evaluated as follows: (1) endurance test: 10(6) times rotational stress was applied; (2) b...