title: SPECT scan is a reliable tool for selection of patients undergoing unicompartmental knee arthroplasty.
abstract: OBJECTIVE
  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.
authors.affiliation: Department of Orthopaedics and Traumatology, General Hospital, Znojmo, Czech Republic. primar.ortopedie@nemzn.cz
authors.forename: Radek
authors.initials: R
authors.lastname: Hart
authors.forename: Milan
authors.initials: M
authors.lastname: Konvicka
authors.forename: Peter
authors.initials: P
authors.lastname: Filan
authors.forename: José
authors.initials: J
authors.lastname: deCordeiro
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects / Q000379:methods*; D002356:Cartilage / Q000473:pathology*; D015331:Cohort Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007430:Intraoperative Care / Q000379:methods; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery*; D018579:Patient Selection; D011300:Preoperative Care / Q000379:methods; D011336:Probability; D016059:Range of Motion, Articular / Q000502:physiology; D012189:Retrospective Studies; D018570:Risk Assessment; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D015899:Tomography, Emission-Computed, Single-Photon; D016896:Treatment Outcome; D016474:Weight-Bearing