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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_15 | Pages 76 - 76
1 Mar 2013
Ichinohe S Tajima G Kamei Y Maruyama M Shimamura T
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It is very difficult to perform total knee arthroplasty (TKA) for severe varus bowing deformity of femur. We performed simultaneous combined femoral supra-condyle valgus osteotomy and TKA for the case had bilateral varus knees with bowing deformity of femurs.

Case presentation

A 62-year-old woman consulted our clinic with bilateral knee pain and walking distability. She was diagnosed rickets and had bilateral severe varus bowing deformity of femurs from an infant. Her height was 133 cm and body weight was 51 kg. Bilateral femur demonstrated severe bowing and her knee joint demonstrated varus deformity with medial joint line tenderness, no local heat, and no joint effusion. Bilateral knee ROM was 90 degrees with motion crepitus. Bilateral lower leg demonstrated mild internal rotation deformity. Bilateral JOA knee score was 40 Roentgenogram demonstrated knee osteoarthritis with incomplete development of femoral condyle. Mechanical FTA angles were 206 degree on the right and 201 on the left. She was received right simultaneous femoral supra-condyle valgus osteotomy with TKA was performed at age 63. Key points of surgical techniques were to use the intramedullary guide for valgus osteotomy as temporary reduction and fixation then performed mono-cortical locking plate fixation. Several mono cortical screws were exchanged to bi-cortical screws after implantation of the femoral component with long stem. Cast fixation performed during two weeks and full weight bearing permitted at 7 weeks after surgery. Her JOA score was slightly improved 50 due to other knee problems at 9 months after surgery, her right mechanical FTA was decreased to 173, and she received left simultaneous femoral supra-condyle valgus osteotomy with TKA as the same technique at April of this year. She has been receiving rehabilitation at now.

Conclusions

Most causes of varus knee deformity are defect or deformity of medial tibial condyle and TKA for theses cases are not difficult to use tibial augment devices. However the cases like our presentation need supra-femoral condyle osteotomy before TKA. It was easy and useful to use intramedullary guide for valgus osteotomy as temporary reduction and fixation then performed mono-cortical locking plate fixation before TKA.


The Journal of Bone & Joint Surgery British Volume
Vol. 86-B, Issue 6 | Pages 918 - 924
1 Aug 2004
Nishida J Araki S Akasaka T Toba T Shimamura T Amadio PC An K

The excursion resistance between the tendon and pulley is an important factor contributing to the limitation of function after surgery to the hand. The administration of hyaluronic acid (HA) in the early rehabilitation after tendon grafting may help to prevent adhesions. We evaluated changes in the excursion resistance between potential sources of flexor tendon grafts and the annular pulley in a canine model after administration of HA.

The intrasynovial and extrasynovial tendons were soaked in 10 mg/ml of HA for five minutes. The excursion resistance between these tendons and the annular pulley of an intact proximal phalanx and that of the same tendons of the opposite foot without administration of HA were evaluated. The tendon of flexor digitorum profundus of the second toe without administration of HA was used as a control.

The gliding resistance of canine tendons was significantly decreased after the administration of HA especially in the extrasynovial tendons. Our findings suggest that the administration of HA may improve the gliding function of a flexor tendon graft.


Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_I | Pages 18 - 18
1 Jan 2003
Ichinohe S Yoshida M Endo T Kamei Y Shimamura T
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The purpose of this study is to clarify optimal timing of anterior cruciate ligament (ACL) reconstruction from the point of view of meniscus injury.

One hundred thirty-five ACL injuries (under 40 years of age) were analyzed in this study. All knees had undergone primary reconstruction without other ligament injury, and follow-up arthroscopy. ACL reconstruction was performed by the semitendinosus and gracilis method. The rehabilitation protocol was based on that of Shelbourne. Cases were divided into 4 groups by the period from injury to reconstruction. Nineteen knees were of the acute phase, which is within 1 month from the injury to reconstruction. Thirty-one knees were of the subacute phase, which is from 1 month over to reconstruction. Thirty-one knees were of the subacute phase, which is from 1 month over to 3 months from the injury to reconstruction. Forty knees were of the subchronic phase, which is from 3 months over to 1 year from the injury to reconstruction. Forty-five knees were of the chronic phase, which is over 1 year from the injury to reconstruction. We compared arthroscopic findings as well as clinical follow-up results of each phase.

The rate of lateral meniscus injury were 84% in the acute phase, 39% in the subacute phase, 58% in the subchronic phase, and 51% in the chronic phase. The rates of medial meniscus injury were 32% in the acute phase, 29% in the subacute phase, 53% in the sub-chronic phase, and 60% in the chronic phase. Horizontal tear and degenerative tear of the lateral meniscus were increased with time. Osteoarthritic change at follow-up arthroscopy was observed 3 knees in the acute phase, 4 knees In the subacute phase, 8 knees In the subchronic phase, and 13 knees in the chronic phase. There was no difference between clinical results of our ACL reconstruction in the acute phase and chronic phase.

ACL reconstruction in the acute phase was the effective method for preventing secondary osteoarthritis after medial meniscus injury.


Orthopaedic Proceedings
Vol. 84-B, Issue SUPP_III | Pages 226 - 226
1 Nov 2002
Yamazaki K Kato S Toba T Shimamura T
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This study reports on postoperative changes of intra and epidural space of both degenerative lumbar spinal canal stenosis(DLSCS) and degenerative spondylolisthesis(DO)on MRI. 48cases(DLSCS:20cases, DO:28cases)were investigated in this study. All cases performed bilateral wide fenestration.

The average age of these patients was 65 years and average follow-up period was 60 months. The average improvement ratio(%) of JOA score was 68% at the last follow-up. Symptomes had deteriorated in 8 cases, according to an increase in the volume of the postlaminectomy membrane, at the last follow-up. There were 8 cases(29%)in DO. showing an increase of % slip on X-ray at the last follow-up, accompanied with both a slight decreasing of the cross-sectional area(CSA)of dural sac and a slight deterioration of clinical results.

Discussion: Symptomes in around 17% of the cases deteriorated, and there were three factors on MRI ; a poor expansion of the dural sac, a grouping of the cauda equina, and a decrease in the CSA of the dural sac.


Orthopaedic Proceedings
Vol. 84-B, Issue SUPP_III | Pages 237 - 237
1 Nov 2002
Ichinohe S Yoshida M Tajima G Akasaka T Honda T Shimamura T
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Purpose: To evaluate repair of articular cartilage.

Methods: Ten cases of ten knees (6 males and 4 females) were evaluated in the current study. Seven knees treated by osteochondral graft including six receiving mosaic plasty and one receiving Pasteurization. Four knees treated by periosteal graft. One knee received both mosaicplasty and periosteal graft. Mean patient age at surgery was 31 years old. Eight knees underwent follow-up MRI, 6 knees underwent follow-up arthroscopy, and 4 knees underwent needle biopsy after informed consent was obtained. The mean period from the surgery to final follow-up was 21 months. The mean period from surgery to follow-up arthroscopy was 10 months.

Results: Seven cases of osteochondral graft presented good regeneration of articular surface by MRI and arthroscopic examination. Two knees receiving mosaic plasty demonstrated regeneration of hyaline cartilage even between the gaps in mosaicplasty. However, the structure of hyaline cartilage differed from that of normal cartilage. Pasteurization in one case also demonstrated good regeneration of hyaline cartilage. One knee treated by periosteal graft demonstrated regeneration of hyaline cartilage. However, the graft area in another such knee was covered by fibrous tissue. One periosteal graft became detached 14 days after surgery. There were no cases showing ossification after periosteal graft.

Conclusion: Periosteal graft could cover a wide defect of articular surface. However, induction of cartilage was not good. Osteochondral graft is a sure method of repairing hyaline cartilage where there is a small defect in the articular surface. Our results from needle biopsy demonstrated hyaline cartilage in the gaps among mosaicplasty areas, but the structure of hyaline cartilage was not good. There is a risk of re-degeneration due to the poor structure of hyaline cartilage. Careful observation is needed in both periosteal graft and mosaic plasty cases.