Advanced Age and Sex Influence Baseline Regional Cerebral Oxygen Saturation as Measured by Near-Infrared Spectroscopy: Subanalysis of a Prospective Study.

Objectives: The aging brain shows decreased venous oxygenation predominantly in the frontal cortex, which seems sex- dependent. The authors hypothesized that age and sex would influence baseline regional cerebral oxygen saturation (rScO) measured by the INVOS 5100.

Design: Subanalysis of published data.

Femoral sizing in total knee arthroplasty is rotation dependant.

Purpose: The mismatch between the medio-lateral (ML) and the antero-posterior (AP) size of femoral components in total knee arthroplasty (TKA) has been linked to gender, ethnicity, morphotype and height differences in patients. The hypothesis of this study was that the AP size measurement of a femoral component increases with more external rotation in posterior referencing TKA.

Methods: During a 2-year period, 201 patients were included in this prospective study.

The minimally invasive far medial subvastus approach for total knee arthroplasty in valgus knees.

Purpose: The lateral approach in the valgus knee asks for a lot of soft tissue releases during the arthrotomy. The hypothesis of this study was that the far medial subvastus approach could be used in valgus knees and would guarantee both functional and radiological good to excellent results.

Methods: This is a retrospective study on 78 patients (84 knees) undergoing primary total knee arthroplasty (TKA) for type I or II fixed valgus knees.

Joint awareness in different types of knee arthroplasty evaluated with the Forgotten Joint score.

The purpose of this study was to validate the 'Forgotten Joint' score (FJS-12), a 12-item questionnaire designed to analyze the patient's ability to forget the joint in everyday life, in French and to compare the results of this Patient Reported Outcome (PRO) score in patients who had other than total joint arthroplasties. The score was compared in 122 patients that had either medial unicompartmental (N=51), patellofemoral (N=21) or total knee arthroplasty (N=50). After having validated the FJS-12 in French, a similar PRO was observed in unicompartmental and postero-stabilized total knee arthroplasty.

Vascularized osteochondral graft from the medial femoral trochlea: anatomical study and clinical perspectives.

Purpose: Few donor sites for vascularized reconstruction of convex joint surfaces have been described. We studied the feasibility of a convex vascularized osteochondral graft harvested from the medial femoral condyle and trochlea, on an anatomical and practical point of view.

Methods: An injection-corrosion technique was used on 16 fresh cadaver specimens, and completed by a modified Spalteholz clearing.