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Hoffa's fat pad resection in total knee arthroplasty.
Francisco Maculé1, Sergi Sastre, Sandra Lasurt
1Knee Unit Orthopaedics, Hospital Clinic Universitari de Barcelona, Barcelona, Spain.
Acta Orthopaedica Belgica
|February 8, 2006
Summary
Resecting Hoffa's fat pad during total knee arthroplasty (TKA) did not affect patellar tendon length. Pre-existing fibrosis in the fat pad may influence postoperative pain and motion after TKA.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Hoffa's fat pad is a common source of anterior knee pain.
- Its role in total knee arthroplasty (TKA) outcomes is not fully understood.
Purpose of the Study:
- To investigate the consequences of Hoffa's fat pad resection during TKA.
- To evaluate the impact of fat pad resection on postoperative pain and function.
Main Methods:
- A randomized controlled trial involving 68 patients undergoing primary TKA.
- Patients were assigned to either Hoffa's fat pad resection or preservation.
- Pathological analysis of fat pad biopsies, with radiological and clinical evaluations post-surgery.
Main Results:
- 36% of patients showed inflammatory infiltration, and 33% had severe fibrosis in the fat pad.
- 95% of patients experienced a progressive decrease in anterior knee pain post-TKA in both groups.
- Resection of Hoffa's fat pad did not alter patellar tendon length within six months post-TKA.
Conclusions:
- Hoffa's fat pad resection did not negatively impact patellar tendon length or immediate postoperative outcomes.
- Preoperative fibrosis of Hoffa's fat pad may be associated with postoperative pain and limited range of motion after TKA.