- See:
-
Malposition of Joint Line:
-
Patellar Clunk Syndrome:
- Discussion:
- more frequent than patella alta;
- data suggest that maintenance of a ht between 10 and 30 mm is optimal
- this problem may be prevented by keeping resection line of the tibia less than 10 mm;
- in resecting distal femur for component placement, care must be taken to maintain articular relative to attachments of collateral ligs;
- most frequent error is allowing a mismatch between the AP depth of the anatomic knee and the prosthesis;
- therefore, restoration of AP dimensions of the medial femoral condyle with appropriate rotational considerations is critical
in maintaining the prosthetic patella at its ideal position;
- revision procedures include
lateral retinacular release, revision of component & either a V/Y or step cut lengthening of patellar lig.;
