Patellofemoral crepitation and clunk following modern, fixed-bearing total knee arthroplasty

Juan V. Peralta-Molero, Brian P. Gladnick, Yuo yu Lee, Andres Vergara Ferrer, Stephen Lyman, Alejandro González Della Valle

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Patellar crepitation and clunk (PCC) is an important and modifiable complication of total knee arthroplasty (TKA). We calculated the incidence of PCC using a modern fixed-bearing TKA prosthesis, assessed whether PCC is associated with knee range of motion, and determined if there were any radiographic variables associated with the development of PCC in this prosthetic design. Five hundred seventy primary TKAs were evaluated after a mean follow-up of 24. months (range 12-81). Thirty-four knees developed PCC (6%); 6 required arthroscopic debridement. With each degree increase in the flexion angle, the likelihood of developing PCC increased by 4.2%. The incidence of PCC was low but increased with postoperative flexion ≥ 110°. No radiographic parameters were associated with the development of PCC.

Original languageEnglish
Pages (from-to)535-540
Number of pages6
JournalJournal of Arthroplasty
Issue number3
Publication statusPublished - Mar 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine


Dive into the research topics of 'Patellofemoral crepitation and clunk following modern, fixed-bearing total knee arthroplasty'. Together they form a unique fingerprint.

Cite this