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Title: The effect of medial release of the distal patellar tendon insertion on lateral patella translation and residual insertion strength: a cadaveric study.
Authors: Dervin, Geoffrey F;Whitehead, Timothy;Poitras, Phil;Parai, Milton;Louati, Hakim
Affiliation: Division of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, ON, Canada.
OrthoSport Victoria, Epworth Richmond, Richmond, Victoria, Australia; Austin Hospital, Heidelberg, Victoria, Australia.
Issue Date: 5-Sep-2013
Citation: The Journal of Arthroplasty 2013; 29(3): 525-9
Abstract: Patellar tendon avulsion is a risk with difficult exposure in a stiff knee, patella baja or previous tibial osteotomy. We sought to define a safe amount of release of the patellar tendon insertion for such cases. Eleven pairs of fresh frozen cadaveric lower limb specimens were acquired and randomized to either intact or partial release of the distal tibial insertion. Partial release of the tibial insertion of the tendon increased lateral exposure a mean 29% ± 15% (P = 0.002) while reducing ultimate strength to a mean of 80% that of the intact contralateral tendon. Measured patella release increased lateral patella translation and can be performed without risk of catastrophic rupture with basic activities of daily living following TKA.
Internal ID Number: 24011927
DOI: 10.1016/j.arth.2013.07.044
Type: Journal Article
Subjects: cadaver
patella tendon
tibial insertion
total knee arthroplasty
Activities of Daily Living
Aged, 80 and over
Arthroplasty, Replacement, Knee.adverse effects
Biomechanical Phenomena
Middle Aged
Muscle Strength
Patellar Ligament.anatomy &
Random Allocation
Tendon Injuries.etiology.physiopathology
Appears in Collections:Journal articles

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