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S.ALEVROGIANNIS, MD, PhD. CONSULTANT ORTHOPAEDIC SURGEON  2 ND  Orth. Dept.251 General Air Force Hospital, Athens/GR.
AIM OF THE STUDY ,[object Object]
MATRIX INDUCED AUTOLOGOUS CHONDROCYTE IMPLANTATION (MACI).
AUTOLOGOUS CHONDROCYTE TRANSPLANTATION (ACT 3D ) WITH SPHEROIDS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
AUTOLOGOUS SPHEROIDS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MATERIAL-METHOD ,[object Object],[object Object],[object Object],[object Object],[object Object]
MATERIAL
SITE OF DEFECTS
AETIOLOGY OF DEFECTS
PREVIOUS OPERATIONS
INDICATIONS  ACT 3D ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ALIGNMENT IS CRITICAL ,[object Object]
ARTICULAR CARTILAGE MANAGEMENT IN THE ATHLETE. Algorithm 2005 10 “patient directed” categorical situations Based on: lesion size,  depth,  alignment,  ligament and meniscal integrity progress over time
ACT 3D  PROCEDURES (15) 44% (1) 3% (2) 6% (1) 3% (9) 26% (5) 15% (1) 3% ACT 3D ACT3D+MOWHTO ACT3D+OWDFVO + L.M.TRANSPL.) ACT3D+h-ACL ACT3D+p-ACL ACT3D+h-ACL+ MOWHTO ACT3D+MOWHTO+ R-ACL
ACT 3D  + ACL PROCEDURE
CASE 1  6m.p.o  1 y.p.o
CASE 2:  A.S (M) 37Y.O OWHTO+ 1 ST  STAGE  REVISION ACL+1 ST  STAGE ACI ,[object Object],[object Object]
CASE 3:  LB (M). AGE 42. VALGUS LATERAL OA DFVO + MENISCAL TRANSPLANT Preop Post op Alignment
CASE 4: B.S (F). AGE 42. PATELLAR MAL-ALIGNMENT AND CHONDRAL DEFECT OF LATERAL FACET.
REHABILITATION FEMORAL AND TIBIAL DEFECTS Aqua jogging,  >8w:biking >6 m: jogging, skating >6-12m: skiing >12m: contact sports Aqua training, swimming mobilization WALKING, SPORT Free movement (restricted by pain) CPM with restrictions femoral condyle: Week 2-3:0/0/60 0 Week 4-6: 0/0/90 0 Brace in extension MOBILIZATION Building up FWB within 3-6 weeks PWB (up to 50%)  3-point –walking with crutches Foot sole contact  3-point –walking with crutches WEIGHT  BEARING > WEEK 6 WEEK 2-6 WEEK 1
REHABILITATION PATELLAR AND TROCHLEAR DEFECTS Building up FWB within 3-6 weeks PWB (up to 50%)  3-point –walking with crutches Foot sole contact  3-point –walking with crutches WEIGHT  BEARING >WEEK 4 WEEK 3 - 4 0-14 DAYS Free movement (restricted by pain) CPM with restrictions : Week 2-3: 0/0/30 0 Week 4-5: 0/0/60 0 Week 6-7: 0/0/90 0 Brace in extension MOBILIZATION > WEEK 7 WEEK 2-7 WEEK 1
CLINICAL SCORING SYSTEMS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MODIFIED CINCINATTI SCORE   (0-100) Excellent  (>80),  Good  (55 to 79),  Fair  (30 to 54) or  Poor (<30) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
VISUAL ANALOGUE SCORE   (0 =  good,  10= poor )
PATIENT OUTCOME  FUNCTION SCORE
IKDC KNEE EXAMINATION SCORE
MRI RESULTS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
CASE 5: S.S (M) 23Y.O  1Y.P.O O.C.D
2 nd  LOOK ARTHROSCOPY
CASE 6: T.G (M) 43Y.O
CASE 6: T.G (M) 43Y.O  1 Y.P.O
CASE 6: T.G (M) 43Y.O  1 Y.P.O
COMPLICATIONS 1.Superficial wound inf : 0 2. Septic arthritis : 0 3. Lateral popliteal n. neuropraxia : 1 4.Knee stiffness requiring MUA : 0 5.Symptomatic graft hypertrophy : 0 6.Delamination :0 7.Unplanned arthroscopy : 0 8.Post op. DVT: 0 9. Graft failure : 1
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],CONCLUSIONS
Replacement/ Repair Regeneration THE ULTIMATE GOAL

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ΠΛΗΡΩΣ ΑΡΘΡΟΣΚΟΠΙΚΗ ΑΠΟΚΑΤΑΣΤΑΣΗ ΧΟΝΔΡΙΝΩΝ ΚΑΙ ΟΣΤΕΟΧΟΝΔΡΙΝΩΝ ΒΛΑΒΩΝ ΓΟΝΑΤΟΣ

  • 1. S.ALEVROGIANNIS, MD, PhD. CONSULTANT ORTHOPAEDIC SURGEON 2 ND Orth. Dept.251 General Air Force Hospital, Athens/GR.
  • 2.
  • 3. MATRIX INDUCED AUTOLOGOUS CHONDROCYTE IMPLANTATION (MACI).
  • 4.
  • 5.
  • 6.
  • 11.
  • 12.
  • 13. ARTICULAR CARTILAGE MANAGEMENT IN THE ATHLETE. Algorithm 2005 10 “patient directed” categorical situations Based on: lesion size, depth, alignment, ligament and meniscal integrity progress over time
  • 14. ACT 3D PROCEDURES (15) 44% (1) 3% (2) 6% (1) 3% (9) 26% (5) 15% (1) 3% ACT 3D ACT3D+MOWHTO ACT3D+OWDFVO + L.M.TRANSPL.) ACT3D+h-ACL ACT3D+p-ACL ACT3D+h-ACL+ MOWHTO ACT3D+MOWHTO+ R-ACL
  • 15. ACT 3D + ACL PROCEDURE
  • 16. CASE 1 6m.p.o 1 y.p.o
  • 17.
  • 18. CASE 3: LB (M). AGE 42. VALGUS LATERAL OA DFVO + MENISCAL TRANSPLANT Preop Post op Alignment
  • 19. CASE 4: B.S (F). AGE 42. PATELLAR MAL-ALIGNMENT AND CHONDRAL DEFECT OF LATERAL FACET.
  • 20. REHABILITATION FEMORAL AND TIBIAL DEFECTS Aqua jogging, >8w:biking >6 m: jogging, skating >6-12m: skiing >12m: contact sports Aqua training, swimming mobilization WALKING, SPORT Free movement (restricted by pain) CPM with restrictions femoral condyle: Week 2-3:0/0/60 0 Week 4-6: 0/0/90 0 Brace in extension MOBILIZATION Building up FWB within 3-6 weeks PWB (up to 50%) 3-point –walking with crutches Foot sole contact 3-point –walking with crutches WEIGHT BEARING > WEEK 6 WEEK 2-6 WEEK 1
  • 21. REHABILITATION PATELLAR AND TROCHLEAR DEFECTS Building up FWB within 3-6 weeks PWB (up to 50%) 3-point –walking with crutches Foot sole contact 3-point –walking with crutches WEIGHT BEARING >WEEK 4 WEEK 3 - 4 0-14 DAYS Free movement (restricted by pain) CPM with restrictions : Week 2-3: 0/0/30 0 Week 4-5: 0/0/60 0 Week 6-7: 0/0/90 0 Brace in extension MOBILIZATION > WEEK 7 WEEK 2-7 WEEK 1
  • 22.
  • 23.
  • 24. VISUAL ANALOGUE SCORE (0 = good, 10= poor )
  • 25. PATIENT OUTCOME FUNCTION SCORE
  • 27.
  • 28. CASE 5: S.S (M) 23Y.O 1Y.P.O O.C.D
  • 29. 2 nd LOOK ARTHROSCOPY
  • 30. CASE 6: T.G (M) 43Y.O
  • 31. CASE 6: T.G (M) 43Y.O 1 Y.P.O
  • 32. CASE 6: T.G (M) 43Y.O 1 Y.P.O
  • 33. COMPLICATIONS 1.Superficial wound inf : 0 2. Septic arthritis : 0 3. Lateral popliteal n. neuropraxia : 1 4.Knee stiffness requiring MUA : 0 5.Symptomatic graft hypertrophy : 0 6.Delamination :0 7.Unplanned arthroscopy : 0 8.Post op. DVT: 0 9. Graft failure : 1
  • 34.
  • 35. Replacement/ Repair Regeneration THE ULTIMATE GOAL

Notes de l'éditeur

  1. Mr President, dear colleagues, thank you in advance for the invitation in this congress.
  2. The purpose of this presentation is to show you our preliminary results in using the chondrospheres in treating arthroscopically, medium to large focal chondral defects at the knee.
  3. What you can see in the present slide is not of course the 3-dimensional ACI, but is the method we successfully used, in order to treat cartilage defects up to about a year ago, when we first used the ACT 3D .
  4. The ACT3D is an innovative technique in treating medium to large chondral defects, because in addition to previous operative methods, the surgeon can apply the cultivated spheroids fully arthroscopically, in most of the cases, without any scaffold, or membrane and without any fibrin glue, or other fixation mode. The product is strictly autologous, without any host reactive changes.
  5. The spheroids are small balls, consisted of 3-dimensional conglomerats of chondrocytes, together with their matrix. Their diameter is no more than 1mm and we can detect about 200.000 chondrocytes in each one of them, after the cultivation.. We need about 10-70 spheroids per square centimeter for the defect. They are grown up in patients own serum, without any antibiotics . They can express hyaline like specific markers and chondrogenic growth factors and subsequently suppress the expression of collagen type I.
  6. We have treated operatively in our Dept., 35 symptomatic patients between March 2007 and May 2008. All pts were recreational athletes and the mean age was 32 years old. The mean area of cartilage defect was 6.75cm2 and all the cases were classified as grade III and IV according to Outerbrigde scale. 34 of them were treated fully arthroscopically, in addition to one case with multiple defects, we had to operate through an open arthrotomy, and was excluded from our final results.
  7. 22 out of 34 patients were male and 24 of them had the operation at the right knee.
  8. Most of the cartilage lesions (18) were located in the weight-bearing surface of the medial femoral condyle, (8) in the lateral one ,(6) in the trochlea area and 2 in the lateral facet of the patella.
  9. In most of the cases (19) the defect was due to trauma, .(8) of them were caused due to failed microfracturing technique.All of them had been performed elsewhere, more than 5 years ago. Of the remaining 7 cases, 2 were due to chondromalacia patella and 5 of them due to osteochondritis dissecans.
  10. 2 of our pts had previous partial medial meniscectomy, 1 partial lateral one. 8 of them had previous MFx ,as I have mentioned in previous slide, 1 had an arthroscopic debridement and another one an arthroscopic lateral release.
  11. We strictly procceded, keeping always in mind the indications and contra-indications of the method .
  12. What is more important, whatever method the surgeon prefers to perform for a chondral injury, is alignment. Nothing will work if alignment is out.
  13. Keeping that in mind ,we currently use this algorithm as a baseline philosophy for every patient we treat having a cartilage defect.
  14. According to this we have performed 15 applications of ACT 3D as single procedure. In 5 cases we had to perform a medial open wedge high tibial osteotomy due to varus leg, concommitant with ACT3D application, as a two stage procedure. Apart from that, we have performed 11 ACL reconstructions combined with the spheres, 1 case with concommitant open wedge distal femoral valgus osteotomy and lateral meniscal transplantation , 1 case with medial open wedge high tibial osteotomy and ACL reconstruction and another one with revision ACL reconstruction and medial open wedge high tibial osteotomy as a biologic knee replacement procedure. In all cases the osteotomies were performed in the first stage of ACI and the second stage was performed when the osteotomy had features of callus formation (mostly 5-6 weeks later).All the osteotomies were performed with use of either TOMOFIX or PUDDU plate. In the later cases we used the wedge shaped plate in order to avoid patella baja. All cases with ACL reconstruction (9 with hamstrings tendon and 2 with BPTB) were performed at the 2 nd stage of ACI and the rehab protocol was modified. In the revision ACL case ,the removal of the ACL xenograft was accompanied with placement of bone allograft in the tunnels, accompanied by revision ACL (anterior tibialis allograft) in 2 nd stage, 3 monthes later.
  15. I will show you some of our cases. The first one is a 44 year old gentleman, with a medial genu varum and a concomittant chondral defect ,grade IV, 6.5cm 2 ,in the weight-bearing surface of MFC. He underwent an open wedge high tibial osteotomy with a TOMOFIX plate and ACT3D application 5 weeks later. You can easily see the consolidation of the osteotomy and the remaining space in the medial compartment.
  16. Regarding the MRI scans, all of our patients underwent an MRI scan 6 and 12 m.p.o as a standard protocol. In all but one case we found no persisting subchondral oedema 6-12m.p.o and no graft hypertrophy. In one case ,in which the clinical score was excellent and the patient had no complaint at all, we found evidence of persisting subchondral oedema and not good consolidation of the graft and so we had to scope him.