Journal
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
Volume 128, Issue 7, Pages 679-682Publisher
SPRINGER
DOI: 10.1007/s00402-007-0399-3
Keywords
knee; unicompartmental arthroplasty; indication; SPECT
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Purpose Was to determine the relationship between pre-operative SPECT and intra-operative assessments of tibio-femoral chondral changes. Methods One hundred cases had been selected on the following criteria: (1) marked Tc-99 m uptake on the medial compartment and (2) its normal uptake laterally. The cartilage macroscopic condition of tibio-femoral compartments were then recorded during the surgery. Results A total of 73% of Grade 0, 24% of Grade I, and 3% of Grade II chondral injuries were detected laterally; 100% of Grade IV chondral lesions were detected medially. Statistically very significant relationship was demonstrated between SPECT and the mcroscopic cartilage condition. Conclusions SPECT bone scan provides very useful information regarding the degree of osteoarthritis in knee weight-bearing compartments for pre-operative planning.
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