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. Author manuscript; available in PMC: 2022 Apr 21.
Published in final edited form as: J Bone Joint Surg Am. 2021 Apr 21;103(8):705–714. doi: 10.2106/JBJS.20.00696

TABLE IV.

Types and Reasons for Reoperations According to Postoperative Timing

Type/Timing
of
Reoperations
No. (%) of
Reoperations
Complication Causing Reoperation
Type
1
Type
2
Type 3 Type
4
Type 5 Stiff
Knee
Polyethylene Patellar Other
Implant Fracture
Overall reoperations
 <5 yr 183 (58.7) 27 22 14 10 62 5 14 8 13 8
 5-10 yr 53 (17.0) 0 11 3 1 15 3 0 6 11 3
 >10 yr 76 (24.4) 2 8 1 5 35 0 2 5 12 6
 Total 312 (100) 29 41 18 16 112 8 16 19 36 17
Minor reoperations
 <5 yr 128 (59.8) 27 2 0 5 48 4 14 8 13 7
 5-10 yr 32 (15.0) 0 1 0 0 11 1 0 6 11 2
 >10 yr 54 (25.2) 2 1 0 2 25 0 2 5 12 5
 Total 214 (100) 29 4 0 7 84 5 16 19 36 14
Major reoperations
 <5 yr 55 (56.1) 0 20 14 5 14 1 0 0 0 1
 5-10 yr 21 (21.4) 0 10 3 1 4 2 0 0 0 1
 >10 yr 22 (22.4) 0 7 1 3 10 0 0 0 0 1
 Total 98 (100) 0 37 18 9 28 3 0 0 0 3