Biomechanical comparison of Evans procedure and Chrisman-Snook technique for the treatment of II degree lateral collateral ligament of ankle joint / 中国骨伤
China Journal of Orthopaedics and Traumatology
;
(12): 654-657, 2012.
Article
in Chinese
| WPRIM
| ID: wpr-321891
ABSTRACT
<p><b>OBJECTIVE</b>To measure the stability of Evans procedure and Chrisman-Snook technique in the treatment of II degree lateral collateral ligament of ankle joint, and provide basis for treatment and prognosis.</p><p><b>METHODS</b>From July 2008 to June 2009,18 frozen corpes were collected, including 10 males and 8 females, with an average age of fresh 39.3 +/- 11.2 years. The frozen corpes were randomly divided into three group, including normal controls(group A), Evans procedure (group B) and Chrisman-Snook technique ( group C), 6 specimens in each group. Anterior talofibular ligament and calcaneofibular ligament were cut off to cause II degree lateral collateral ligament in group B and C. Evans procedure or Chrisman-Snook technique were applied to restore lateral collateral ligament, and measure biomechnics. The displacement of tibiotalar joint and subtalar joint were observed.</p><p><b>RESULTS</b>(1) The lateral stress results of tibiotalar joint showed the displacement by Evans procedure (group B) was greater than other groups (P < 0.0001). There were no significant differences between group A and C (P > 0.05). (2) The lateral stress results of subtalar joint showed the displacement by Evans procedure (group B) was greater than other groups (P< 0.0001). There were no significant differences between group A and C (P > 0.05).</p><p><b>CONCLUSION</b>Ankle instability is caused by ankle joint lateral collateral ligament injury. Chrisman-Snook technique is better than Evans procedure in stability on the early stage of ankle joint restoration, and conform to principle of biomechanics.</p>
Full text:
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Index:
WPRIM (Western Pacific)
Main subject:
Prognosis
/
General Surgery
/
Wounds and Injuries
/
Biomechanical Phenomena
/
Diagnostic Imaging
/
Radiography
/
Lateral Ligament, Ankle
/
Plastic Surgery Procedures
/
Mechanical Phenomena
/
Ankle Joint
Type of study:
Diagnostic study
/
Prognostic study
Limits:
Adult
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
China Journal of Orthopaedics and Traumatology
Year:
2012
Type:
Article
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