Journal List > Korean J Sports Med > v.29(1) > 1054462

Kim, Chun, and Jeong: Meniscal Allograft Transplantation – Clinical Results and Recovery of Sports Activity–

Abstract

The purpose of this study was to evaluate the clinical results and recovery of sports activity in patients who received meniscal allograft transplantation. From December 1999 to May 2009, we selected 36 cases out of 38 cases who received meniscal transplantation using fresh frozen allograft. The mean age was 33.8 years (range: 17–50 years) and the mean follow up was 68.8 months (range: 12–142 months). Clinical results were evaluated with knee assess-ment scoring system (KASS), Lysholm knee score and International knee Documentation Committee. The information of quadriceps and hamstrings strength recovery was obtained using Tegner activity scale, Tegner activity score and Biodex system II (Biodex, USA), and it was used to evaluate the recovery of sports activity. The average KASS score was increased from 61.7 preoperatively to 83.8 postoperatively. The average Lysholm score was increased from 77.7 preoperatively to 87.7 postoperatively. Also, Tegner activity scale, Tegner activity score and the recovery of quadriceps and hamstrings increased at 1year after surgery. In knee joint position sense, the proprioception increased compared to preoperational count. We propose the meniscal allograft transplantation is one of a proper treatment after subtotal or total meniscectomy, which can significantly relieve pain and improve function of the knee joint.

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Fig. 1.
Arthroscopic findings shows. (A) Total menisectomy state. (B) Postoperative finding of meniscal transplantation.(C) MRI at 21 months after meniscal transplantation shows no evidence of meniscal tear or extrusion.
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Table 1.
Clinical results according to KASS, Lysholm knee score and Tegner activity score (p<0.05)
  Preoperative Postoperative (last F/U)
KASS score 61.7 (34–80) 83.8 (61–95)
Lysholm knee score 77.7 (48–79) 87.7 (63–97)
Tegner activity score 3.1 (2–5) 6.7 (4–8)

KASS: knee assessment scoring system, F/U: follow-up.

Table 2.
Clinical results according to IKDC
  Preoperative Postoperative (last F/U)
Group A 0 13
Group B 0 19
Group C 22 4
Group D 14 0

IKDC: International Knee Documentation Committee, F/U: follow-up.

Table 3.
Tegner activity scale
Activity scale Recreational sports No. of patient
VI Tennis and badminton 7
V Jogging 17
IV Cycling 9
III Swimming 3
0-II Walking only 0

No.: number.

Table 4.
Deficit percent of peak torque and total work: quadriceps and hamstrings (p<0.05)
Group Angular velocity (o/s) Preoperative Postop (1 y)
PT (%) TW (%) PT (%) TW (%)
Quadriceps 90 48.2 56.4 18.1 17.4
  180 38.6 42.8 12.2 13.8
Hamstrings 90 37.6 47.8 13.2 16.2
  180 32.4 38.8 10.8 14.2

PT: peak torque, TW: total work.

Table 5.
Assessment of knee joint position sense using by Biodex system II (Biodex) (p=0.062)
  Preoperative (°) Postoperative (1 y) (°)
Active 30° flexion 27.20 30.04
Active 70° flexion 65.57 68.90
Passive 30° flexion 27.02 32.20
Passive 70° flexion 64.17 72.27
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