J Korean Knee Soc.  2002 Jun;14(1):43-47.

Modified Elmslie-Trillat Operation in Recurrent and Habitual Patella Dislocation

• Cho WS
• Park JH
• Lee SW

Abstract

PURPOSE: To evaluate the effectiveness of the modified Elmslie-Trillat operation on recurrent and habitual patella dislocation.
MATERIALS AND METHODS
From November 1993 to December 2000, 16 cases of modified Elmslie-Tril-lat operation were performed in 13 patients. Recurrent dislocation were 10 cases, habitual were 6 cases. Mean age was 26 years old(15~46) and male was 1 patient, female were 12 patients. We checked the Q angle and congruence angle to compare the postoperative state with the preoperative result by radiologic finding. Crosby and Insall's criteria was used to evaluate the clinical results.
RESULTS
The congruence angle and Q angle were improved from average 46 degrees (10 degrees ~ 77 degrees) and 20.2 degrees(16 degrees ~35 degrees) in preoperative state to average -5 degrees (-10 degrees ~4 degrees) and 9.5 degrees(4 degrees~15 degrees) in postoperative state. Patella alta were 2 cases and patella baja was none in preoperative measurement. There was no change of patella alta in postoperative measurement. In Crosby and Insall 's criteria, 5 cases showed excellent, 10 cases good, l case poor result. At final follow-up, there were no postoperative complications such as degeneratve arthritis, nonunion, ROM limitation except 1 case of patellar redislocation.
CONCLUSION
Modified Elmslie-Trillat operation is good alternatives to the recurrent and habitual patella dislocation.

Keyword

Patella; Recurrent and habitual dislocation; Modified Elmslie-Trillat operation

MeSH Terms

Arthritis
Dislocations*
Female
Follow-Up Studies
Humans
Male
Patella*
Postoperative Complications