Artikel
Adaptive 2 plate used as a monoaxial locking plate has sufficient fixation stability for osteoporotic distal radius fracture equal to Acu-Loc 2
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Autoren
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Yusuke Sogabe
- Yodogawa Christian Hospital, Osaka, Japan
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Takeshi Egi
- Osaka Saiseikai Nakatsu Hospital, Osaka, Japan
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Yukiko Morimoto
- Yodogawa Christian Hospital, Osaka, Japan
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Masato Shigi
- Osaka Saiseikai Nakatsu Hospital, Osaka, Japan
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Akira Kawabata
- Yodogawa Christian Hospital, Osaka, Japan
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Kiyohito Takamatsu
- Yodogawa Christian Hospital, Osaka, Japan
| Veröffentlicht: | 6. Februar 2020 |
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Gliederung
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Objectives/Interrogation: APTUS Adaptive 2 Distal Radius Plate (Adaptive 2, Medartis AG, Basel, Switzerland) is a poly-axial locking plate (PLP) with a variable angle of 15° and is suitable for use in the double-tiered subchondral support procedure.
However, it can be also used with an attached drill guide block as a monoaxial locking plate (MLP).
In this study, we compared the initial fixation stabilization of Adaptive 2 used as an MLP with the Acu-Loc 2 Wrist Plating System (Acu-Loc 2, Acumed, Hillsboro, OR, USA).
Methods: This study included 42 patients aged >60 years who were followed-up after surgery for 3 months. In total, 25 cases (mean age, 72 years) were treated using Adaptive 2 (Group AD) and 17 (mean age, 73 years) were treated using Acu-Loc 2 (Group AC).
In the third month after surgery, we took X-rays to compare the reduction loss of radial inclination (RI), volar tilt (VT), and ulnar variance (UV) between the groups.
We defined the distance from the most radial screw tip to the radial styloid process tip as the R-value on the front view of the X-ray immediately after the surgery and the distance from the most ulnar side screw’s superior border to the lunate fossa as the L-value level on the lateral view of the X-ray immediately after the surgery.
We regarded each value as the index of radial and ulnar fixation strength and compared them in both groups.
In addition, we examined the correlation of R-value with RI reduction loss and that of L-value with UV reduction loss.
Results and Conclusions:
Table 1 [Tab. 1]
Age, sex, and fracture type based on AO classification, all items regarding reduction loss, and L-value were not significantly different between the groups.
Only R-value was significantly smaller in group AD than in group AC (p=0.005); however, there was no correlation between RI reduction loss and R-value.
Adaptive 2 is capable of repairing the radial styloid with just one locking screw and was comparable to Acu-Loc 2 in radial side fixation repair. Adaptive 2 used as an MLP had good initial fixation stabilization that was not inferior to Acu-Loc 2.
