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Case Reports
. 2018 Mar-Apr;8(2):57-60.
doi: 10.13107/jocr.2250-0685.1050.

Management of Patellar Tendon Rupture after Total Knee Arthroplasty using Hamstring graft: A Case Report

Sumit Anand  1 , Manish Kanwat  2 , Abhinav Mishra  3 , Ravi Mittal  3 , C S Yadav  3
Affiliations
Case Reports

Management of Patellar Tendon Rupture after Total Knee Arthroplasty using Hamstring graft: A Case Report

Sumit Anand et al. J Orthop Case Rep. 2018 Mar-Apr.

Abstract

Introduction: The disruption of extensor mechanism during or after total knee arthroplasty is a rare but disabling complication for the patients. The results of various methods of managing patellar ligament rupture are not predictable and favorable.

Case report: We report a case of patellar ligament rupture which occurred 6 months after the primary total knee replacement. It was managed satisfactorily using hamstring graft and minimal implant.

Conclusion: Simple and easily reproducible technique for patellar tendon reconstruction that can be performed by surgeons not routinely performing ligament reconstruction gives favorable outcome.

Keywords: Extensor mechanism rupture; Hamstring graft; Patellar tendon repair; Total knee arthroplasty.

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Conflict of interest statement

Conflict of Interest: Nil

Figures

Figure 1
Figure 1
Extension lag in the right knee.
Figure 2
Figure 2
X-ray skyline view showing theabsence of patella in right trochlear groove.
Figure 3
Figure 3
X-ray AP view showing proximally migrated right patella.
Figure 4
Figure 4
X-ray lateralview showing right patella alta.
Figure 5
Figure 5
Semitendinosus autograft being passed through tibial tunnel.
Figure 6
Figure 6
Autograft being stapled.
Figure 7
Figure 7
Patella restored to its level with patellar tendon augmentation done.
Figure 8
Figure 8
Schematic representation of the technique: Yellow-colored semitendinosus autograft passing through (1) tibial tunnel, (2) weaved through fibrous tissue, (3) passing through patellartunnel, (4) weaved again, and (5) stapled to bone.
Figure 9
Figure 9
Post-operative follow-up showing >900 flexion of theright knee.
Figure 10
Figure 10
Post-operative follow-up showing full extension of theright knee.
Figure 11
Figure 11
Post-operative X-ray showing restored patellar level.
See this image and copyright information in PMC

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