title: Indications for lateral retinacular release in total knee replacement.
abstract: The rule of no thumb test was compared with the towel clip test in determining the need for lateral retinacular release in 200 consecutive primary total knee replacements. The towel clip test was positive in 13 knees (6.5%) and the rule of no thumb test was positive in 78 knees (39%). Using a positive towel clip test as the indication for lateral retinacular release, there was no radiographic evidence of patellar tilt, subluxation, or dislocation in any knee at 6 months postoperatively. Therefore, the rule of no thumb test falsely predicted the need for lateral release in 65 knees (32.5%). The authors advocate the towel clip test to determine the need for lateral retinacular release.
authors.affiliation: New Mexico Center for Joint Replacement Surgery, Albuquerque, USA. archibeckmj@ortholink.net
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Archibeck
authors.forename: David
authors.initials: D
authors.lastname: Camarata
authors.forename: James
authors.initials: J
authors.lastname: Trauger
authors.forename: James
authors.initials: J
authors.lastname: Allman
authors.forename: Richard E
authors.initials: RE
authors.lastname: White
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D005260:Female; D006801:Humans; D007432:Intraoperative Period; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D016896:Treatment Outcome