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Table 5 Characteristics of the osteonecrosis lesions in the 10 knees with PAONK. Summary of continuous variables is shown as “mean (standard deviation)”

From: Extrusion of the medial meniscus is a potential predisposing factor for post-arthroscopy osteonecrosis of the knee

Patient No.

Age Sex

Location of the necrotic lesion

Area of BME

Necrosis stage (Koshino)

OA grade (KL)

FTA

Subsequent Treatment

1.

70’s, F

MFC

Narrow

S-2

G-2

176

TKA

2.

60’s, M

MFC

Moderate

S-2

G-3

178

HTO, OATS

3.

60’s, F

MFC

Wide

S-2

G-2

181

UKA

4.

70’s, F

MFC

Narrow

S-1

G-3

175

UKA

5.

60’s, F

MFC

Narrow

S-2

G-2

179

UKA

6.

60’s, F

MFC

Moderate

S-3

G-1

177

UKA

7.

60’s, F

MFC

Wide

S-3

G-3

177

UKA

8.

80’s, M

MFC&MTP

Narrow

S-2

G-3

178

TKA

9.

60’s, F

MFC

Narrow

S-1

G-2

169

TKA

10.

60’s, F

MFC&MTP

Moderate

S-1

G-0

178

UKA

 Summary

 

MFC: 8

Narrow: 5

S-1: 3

G-0: 1

177

UKA: 6

  

MFC&MTP: 2

Moderate: 3

S-2: 5

G-1: 1

(3.0)

TKA: 3

   

Wide: 2

S-3: 2

G-2: 4

 

HTO: 1

     

G-3: 4

  
  1. F Female, M Male, MFC Medial femoral chondyle, MTP Medial tibial plateau, BME Bone marrow edema, OA Osteoarthritis, UKA Unicompartmental knee arthroplasty, TKA Total knee arthroplasty, OATS Osteochondral autograft transfer system, HTO High tibial osteotomy