Abstract
Background: The purpose of this present study was to determine the incidence of lateral cortical fracture depending on the plane of osteotomy in medial open-wedge supramalleolar osteotomy (SMO) and to define a safe zone through which a medial open-wedge SMO could be performed with minimal risk of lateral cortical fracture. Materials and Methods: Matched pairs of fresh-frozen human cadaver lower leg specimens were obtained from 7 males and 3 females (average age = 63.9 [range 49-75] years). In group A, a safe zone-level medial open-wedge SMO (plane of osteotomy oriented to the proximal one-third of the intrasyndesmosis) was performed, and in group B, a higher-level medial open-wedge SMO (plane of osteotomy oriented to the suprasyndesmosis) was performed. Results: In group A, 7 of the 10 limbs had no lateral cortical fracture, and 3 had lateral cortical fracture, but all of the fractured limbs were stable during the medial open-wedge SMO procedure. In group B, 2 of 10 limbs had no lateral cortical fracture and 8 had lateral cortical fracture. Three of the 8 fractured limbs were stable, but 5 were unstable during the medial open-wedge SMO procedure. The incidence of lateral cortical fracture in group B was significantly higher compared to group A (P =.04). Conclusions: According to the present findings, lateral cortical fracture was less likely to occur when open-wedge SMO was at the plane of the proximal one-third of the intrasyndesmosis, the so-called "safe zone," than at the plane of the suprasyndesmosis. Clinical Relevance: A safe zone for medial open-wedge SMO to prevent lateral cortical fracture during the medial open-wedge SMO procedure was identified.
| Original language | English |
|---|---|
| Pages (from-to) | 102-108 |
| Number of pages | 7 |
| Journal | Foot and Ankle International |
| Volume | 37 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2016 Jan 1 |
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Keywords
- lateral cortical fracture
- plane of osteotomy
- safe zone
- supramalleolar osteotomy
ASJC Scopus subject areas
- Surgery
- Orthopedics and Sports Medicine
Cite this
Safe zone for medial open-wedge supramalleolar osteotomy of the ankle : A cadaveric study. / Nha, Kyung Wook; Lee, Soon-Hyuck; Rhyu, Im Joo; Kim, Hak Jun; Song, Jae Gwang; Han, Jae Hwi; Yeo, Eui Dong; Lee, Young Koo.
In: Foot and Ankle International, Vol. 37, No. 1, 01.01.2016, p. 102-108.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Safe zone for medial open-wedge supramalleolar osteotomy of the ankle
T2 - A cadaveric study
AU - Nha, Kyung Wook
AU - Lee, Soon-Hyuck
AU - Rhyu, Im Joo
AU - Kim, Hak Jun
AU - Song, Jae Gwang
AU - Han, Jae Hwi
AU - Yeo, Eui Dong
AU - Lee, Young Koo
PY - 2016/1/1
Y1 - 2016/1/1
N2 - Background: The purpose of this present study was to determine the incidence of lateral cortical fracture depending on the plane of osteotomy in medial open-wedge supramalleolar osteotomy (SMO) and to define a safe zone through which a medial open-wedge SMO could be performed with minimal risk of lateral cortical fracture. Materials and Methods: Matched pairs of fresh-frozen human cadaver lower leg specimens were obtained from 7 males and 3 females (average age = 63.9 [range 49-75] years). In group A, a safe zone-level medial open-wedge SMO (plane of osteotomy oriented to the proximal one-third of the intrasyndesmosis) was performed, and in group B, a higher-level medial open-wedge SMO (plane of osteotomy oriented to the suprasyndesmosis) was performed. Results: In group A, 7 of the 10 limbs had no lateral cortical fracture, and 3 had lateral cortical fracture, but all of the fractured limbs were stable during the medial open-wedge SMO procedure. In group B, 2 of 10 limbs had no lateral cortical fracture and 8 had lateral cortical fracture. Three of the 8 fractured limbs were stable, but 5 were unstable during the medial open-wedge SMO procedure. The incidence of lateral cortical fracture in group B was significantly higher compared to group A (P =.04). Conclusions: According to the present findings, lateral cortical fracture was less likely to occur when open-wedge SMO was at the plane of the proximal one-third of the intrasyndesmosis, the so-called "safe zone," than at the plane of the suprasyndesmosis. Clinical Relevance: A safe zone for medial open-wedge SMO to prevent lateral cortical fracture during the medial open-wedge SMO procedure was identified.
AB - Background: The purpose of this present study was to determine the incidence of lateral cortical fracture depending on the plane of osteotomy in medial open-wedge supramalleolar osteotomy (SMO) and to define a safe zone through which a medial open-wedge SMO could be performed with minimal risk of lateral cortical fracture. Materials and Methods: Matched pairs of fresh-frozen human cadaver lower leg specimens were obtained from 7 males and 3 females (average age = 63.9 [range 49-75] years). In group A, a safe zone-level medial open-wedge SMO (plane of osteotomy oriented to the proximal one-third of the intrasyndesmosis) was performed, and in group B, a higher-level medial open-wedge SMO (plane of osteotomy oriented to the suprasyndesmosis) was performed. Results: In group A, 7 of the 10 limbs had no lateral cortical fracture, and 3 had lateral cortical fracture, but all of the fractured limbs were stable during the medial open-wedge SMO procedure. In group B, 2 of 10 limbs had no lateral cortical fracture and 8 had lateral cortical fracture. Three of the 8 fractured limbs were stable, but 5 were unstable during the medial open-wedge SMO procedure. The incidence of lateral cortical fracture in group B was significantly higher compared to group A (P =.04). Conclusions: According to the present findings, lateral cortical fracture was less likely to occur when open-wedge SMO was at the plane of the proximal one-third of the intrasyndesmosis, the so-called "safe zone," than at the plane of the suprasyndesmosis. Clinical Relevance: A safe zone for medial open-wedge SMO to prevent lateral cortical fracture during the medial open-wedge SMO procedure was identified.
KW - lateral cortical fracture
KW - plane of osteotomy
KW - safe zone
KW - supramalleolar osteotomy
UR - http://www.scopus.com/inward/record.url?scp=84952891509&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84952891509&partnerID=8YFLogxK
U2 - 10.1177/1071100715597438
DO - 10.1177/1071100715597438
M3 - Article
C2 - 26245203
AN - SCOPUS:84952891509
VL - 37
SP - 102
EP - 108
JO - Foot and Ankle International
JF - Foot and Ankle International
SN - 1071-1007
IS - 1
ER -