Details
| Original language | English |
|---|---|
| Pages (from-to) | 1325-1330 |
| Number of pages | 6 |
| Journal | INJURY |
| Volume | 48 |
| Issue number | 7 |
| Publication status | Published - Jul 2017 |
Abstract
Malunion after forearm fractures are described to appear in 2% to 10% of cases. Reconstructive surgeries ensure adequate anatomical repositioning. Their importance derives from the fact that malunion can often lead to severe pain as well as deformities causing loss of function and aesthetic issues not only in the forearm, but also the wrist and elbow joint. In this paper a clinical case will be presented using a Patient Specific Instrument (PSI) as navigational aid for reconstructive surgery after malunion of a proximal ulnar fracture combined with allograft surgery of the radial head and radial condyle due to chronic traumatic radial head luxation (Monteggia fracture). A planning method based on symmetry is described and evaluated on twelve Computed Tomographic (CT) data sets of intact forearms. The absolute point to point deviation at distal end of the ulnar styloid process was used as a characteristic value for accuracy evaluation. It is 7.9 ± 4.9 mm when using only the proximal end of the ulna for registration. The simulated change of ulnar variance is −1.4 ± 1.9 mm. Design and concept of the PSI are proven in a clinical trial
Keywords
- Fracture, Malunion, Monteggia, Patient specific instrument, PSI, Surgical planning, Symmetry planning, Ulna
ASJC Scopus subject areas
- Medicine(all)
- Emergency Medicine
- Medicine(all)
- Orthopedics and Sports Medicine
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In: INJURY, Vol. 48, No. 7, 07.2017, p. 1325-1330.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Patient specific pointer tool for corrective osteotomy
T2 - Quality of symmetry based planning and case study of ulnar reconstruction surgery
AU - Mueller, Samuel
AU - Kahrs, Lueder Alexander
AU - Gaa, Johannes
AU - Ortmaier, Tobias
AU - Clausen, Jan Dierk
AU - Krettek, Christian
PY - 2017/7
Y1 - 2017/7
N2 - Malunion after forearm fractures are described to appear in 2% to 10% of cases. Reconstructive surgeries ensure adequate anatomical repositioning. Their importance derives from the fact that malunion can often lead to severe pain as well as deformities causing loss of function and aesthetic issues not only in the forearm, but also the wrist and elbow joint. In this paper a clinical case will be presented using a Patient Specific Instrument (PSI) as navigational aid for reconstructive surgery after malunion of a proximal ulnar fracture combined with allograft surgery of the radial head and radial condyle due to chronic traumatic radial head luxation (Monteggia fracture). A planning method based on symmetry is described and evaluated on twelve Computed Tomographic (CT) data sets of intact forearms. The absolute point to point deviation at distal end of the ulnar styloid process was used as a characteristic value for accuracy evaluation. It is 7.9 ± 4.9 mm when using only the proximal end of the ulna for registration. The simulated change of ulnar variance is −1.4 ± 1.9 mm. Design and concept of the PSI are proven in a clinical trial
AB - Malunion after forearm fractures are described to appear in 2% to 10% of cases. Reconstructive surgeries ensure adequate anatomical repositioning. Their importance derives from the fact that malunion can often lead to severe pain as well as deformities causing loss of function and aesthetic issues not only in the forearm, but also the wrist and elbow joint. In this paper a clinical case will be presented using a Patient Specific Instrument (PSI) as navigational aid for reconstructive surgery after malunion of a proximal ulnar fracture combined with allograft surgery of the radial head and radial condyle due to chronic traumatic radial head luxation (Monteggia fracture). A planning method based on symmetry is described and evaluated on twelve Computed Tomographic (CT) data sets of intact forearms. The absolute point to point deviation at distal end of the ulnar styloid process was used as a characteristic value for accuracy evaluation. It is 7.9 ± 4.9 mm when using only the proximal end of the ulna for registration. The simulated change of ulnar variance is −1.4 ± 1.9 mm. Design and concept of the PSI are proven in a clinical trial
KW - Fracture
KW - Malunion
KW - Monteggia
KW - Patient specific instrument
KW - PSI
KW - Surgical planning
KW - Symmetry planning
KW - Ulna
UR - http://www.scopus.com/inward/record.url?scp=85019649465&partnerID=8YFLogxK
U2 - 10.1016/j.injury.2017.05.012
DO - 10.1016/j.injury.2017.05.012
M3 - Article
C2 - 28549780
AN - SCOPUS:85019649465
VL - 48
SP - 1325
EP - 1330
JO - INJURY
JF - INJURY
SN - 0020-1383
IS - 7
ER -