Spontaneous patella fracture associated with anterior tibial tubercle pseudarthrosis in a revised knee replacement following knee Arthrodesis

BMC Musculoskeletal Disorders

Norberto Confalonieri¹  Pietro Cerveri³  Chris Pullen²  Simone Aldè¹  Alfonso Manzotti¹ 

[1] 1st Orthopaedic Department, C.T.O. Hospital, Via S. Pertini 21,Via Bignami 1, 20040, Cambiago Milan, Italy;Royal Melbourne Hospital, Grattan Street, Parkville, Victoria Australia;Bioengineering Department, Politecnico di Milano, Milan, Italy

关键词: Patella;    Complication;    Revision;    Arthroplasty;    Arthrodesis;    Knee;   

Others  :  1129233
DOI  :  10.1186/1471-2474-14-317

 received in 2013-05-01, accepted in 2013-10-02,  发布年份 2013

【 摘 要 】

Background

Conversion of a knee arthrodesis to a Total Knee Arthroplasty is an uncommon procedure. Revision Total Knee Arthroplasty in this setting presents the surgeon with a number of challenges including the management of the extensor mechanism and patella.

Case presentation

We describe a unique case of a 69 years old Caucasian man who underwent a revision Total Knee Arthroplasty using a tibial tubercle osteotomy after a previous conversion of a knee arthrodesis without patella resurfacing. Unfortunately 9 months following surgery a tibial tubercle pseudarthrosis and spontaneous patella fracture occurred. Both were managed with open reduction and internal fixation. At 30 months follow-up the tibial tubercle osteotomy had completely consolidated while the patella fracture was still evident but with no signs of further displacement. The patient was completely satisfied with the outcome and had a painless range of knee flexion between 0-95°.

Conclusions

We believe that patients undergoing this type of surgery require careful counseling regarding the risk of complications both during and after surgery despite strong evidence supporting improved functional outcomes.

【 授权许可】

   
2013 Manzotti et al.; licensee BioMed Central Ltd.

【 图 表 】

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