Nanofiber Scaffolds by Electrospinning for Rotator Cuff Tissue Engineering

임태강,Erik Dorthé,Austin Williams,Darryl D D’Lima 전남대학교 의과학연구소 2021 전남의대학술지 Vol.57 No.1

Rotator cuff tears continue to be at risk of retear or failure to heal after surgical repair, despite the use of various surgical techniques, which stimulate development of novel scaffolding strategies. They should be able to address the known causes of failure after the conventional rotator cuff repair: (1) failure to reproduce the normal tendon healing process, (2) resultant failure to reproduce four zones of the enthesis, and (3) failure to attain sufficient mechanical strength after repair. Nanofiber scaffolds are suited for this application because they can be engineered to mimic the ultrastructure and properties of the native rotator cuff tendon. Among various methods for tissue-engineered nanofibers, electrospinning has recently been highlighted in the rotator cuff field. Electrospinning can create fibrous and porous structures that resemble natural tendon’s extracellular matrix. Other advantages include the ability to create relatively large surface-to-volume ratios, the ability to control fiber size from the micro to the nano scale, and the flexibility of material choices. In this review, we will discuss the anatomical and mechanical features of the rotator cuff tendon, their potential impacts on improper healing after repair, and the current knowledge of the use of electrospinning for rotator cuff tissue engineering.

원위 요골 골절의 수장측 금속판 고정술 후 발생한 신전건 활막염에 대한 초음파를 이용한 진단: 증례 보고

임태강,김상열,강홍제,하대호,Lim, Tae Kang,Kim, Sang Yeol,Kang, Hong Je,Hah, Dae Ho 대한정형외과초음파학회 2013 대한정형외과 초음파학회지 Vol.6 No.2

원위 요골 골절에 대한 수장부 금속판 고정술이 많이 사용되면서, 합병증으로서, 원위 요골 배측 피질골을 관통한 나사못으로 인해 신전건 활막염이나 파열이 발생할 수 있슴이 보고된 바 있다. 그러나, 나사못에 의한 배측 피질골의 관통여부를 표준 방사선 촬영만으로 정확히 평가하기에는 한계가 있다. 저자들은 수장측 금속판 고정술 후 발생한 신전건 건활막염 및 부분 파열이 의심된 환자에 대하여 수술 전 초음파를 이용하여 나사못에 의한 건활막염 및 활막 종괴 형성 소견을 효과적으로 진단하고 수술적 치료를 시행하여 좋은 결과를 얻었기에 이를 보고하고자 한다. After volar locking plating of distal radius fracture, complications arising from unrecognized dorsally prominent screws penetrating the extensor compartments are increasingly reported. However, standard radiography and fluoroscopy may not adequately visualize screw lengths, because of complex shape of dorsal cortex of the distal radius. We presented case of ultrasonography diagnosis of extensor tenosynovitis caused by dorsal screw prominence after volar plate fixation of distal radius fracture.

Intraoperative and Postoperative Complications after Arthroscopic Coracoclavicular Stabilization

임태강,Whang Kyun Oh 대한정형외과학회 2019 Clinics in Orthopedic Surgery Vol.11 No.1

Background: Arthroscopic stabilization of torn coracoclavicular (CC) ligaments gained popularity recently. However, loss of reduction after the operation and complications unique to this technique involving tunnel placement through the distal clavicle and coracoid process are concerns. The purpose of this study was to report intraoperative and early postoperative complications associated with this procedure. Methods: This study retrospectively evaluated 18 consecutive patients who had undergone arthroscopic stabilization for torn CC ligaments between 2014 and 2015. The indications for surgery were acute or chronic acromioclavicular dislocation and acute fracture of the distal clavicle, associated with CC ligament disruption. Clinical outcomes were evaluated with the American Shoulder and Elbow Surgeons (ASES) and the University of California, Los Angeles (UCLA) scores. Intra- and postoperative complications and reoperations were investigated. Results: There were six female and 12 male patients with a mean age of 47 years (range, 22 to 86 years). At a mean follow-up of 17 ± 10 months (range, 10 to 28 months), the mean ASES score was 88.8 ± 19.9 and the mean UCLA score was 30.9 ± 5.2. Intraoperatively, seven complications developed: breach of lateral cortex of the coracoid process in five patients, medial cortex of the coracoid process in one, and anterior cortex of the clavicle in one. Postoperative complications developed in eight patients: four ossifications of the CC interspace, four tunnel widening of the clavicle, one bony erosion on the clavicle, and one superficial infection. A loss of reduction was found in six patients. Reoperation was performed in three patients for loss of reduction in two and superficial infection in the other. Conclusions: Arthroscopic CC stabilization resulted in high rates of intraoperative and early postoperative complications. Most of them were related to the surgical technique involving bone tunnel placement in the coracoid process and the clavicle.

원위 요골에서 발생한 골막하 결절종 - 증례 보고 -

임태강,강홍제,노성현,전근철 대한수부외과학회 2012 대한수부외과학회지 Vol.17 No.2

Subperiosteal ganglion is a cyst that develops from periosteum with cortical erosion. There have been several case reports and most common location is the tibia. Only seven cases of subperiosteal ganglion of the upper extremity have been reported. We report a case of subperiosteal ganglion at distal radius without communication of the wrist joint in a 41-year-old woman. Excision of the cyst and adjacent periosteum were performed without evidence of recurrence. 골막하에서 발생하는 결절종은 매우 드물며 피질골을 침식하며 골막에서 기원한다. 대부분 경골에서 발생하는 것으로 증례 보고되고 있고 상지에서는 7예의 보고가 있다. 저자 들은 41세 여자 환자의 우측 원위 요골 부위에 완관절과 소통이 없는 골막하결절종을 경험하고 치유하였기에 문헌 고찰과 함께 보고하고자 한다.

Nonoperative Treatment of Partial-thickness Rotator Cuff Tear

임태강(TG Lim),유재철,고경환,손민수,이승빈 대한견주관절의학회 2014 대한견주관절학회 학술대회논문집 Vol.2014 No.3

Varus and valgus lateral views

TK Lim(임태강),SB Lee(이승빈),KH Koh(고경환),MJ Park(박민종) 대한견주관절의학회 2013 대한견주관절학회 학술대회논문집 Vol.2013 No.3

Surgical Treatment of Congenital Hallux Varus

심종섭,임태강,고경환,이도경 대한정형외과학회 2014 Clinics in Orthopedic Surgery Vol.6 No.2

Background: The purpose of this study was to report outcomes of congenital hallux varus deformity after surgical treatment. Methods: We evaluated ten feet of eight patients with a congenital hallux varus deformity, including four feet combined with a longitudinal epiphyseal bracket (LEB). There were seven male patients and one female patient with a mean age of 33 months (range, 7 to 103 months) at the time of surgery. Two patients were bilaterally involved. The mean duration of follow-up was 5.9 years (range, 2.3 to 13.8 years). Clinical outcomes were assessed according to the criteria of Phelps and Grogan. Surgical procedures included the Farmer procedure, the McElvenny procedure or an osteotomy at the first metatarsal or proximal phalanx. Results: The clinical results were excellent in two feet, good in six and poor in two feet. The LEB was associated with hallux varus in four feet and were treated by osteotomy alone or in conjunction with soft tissue procedure. Conclusions: Congenital hallux varus was successfully corrected by surgery with overall favorable outcome. Preoperatively, a LEB should be considered as a possible cause of the deformity in order to prevent recurrent or residual varus after surgery.

재발성 손톱밑 사구맥관근종에 대한 초음파를 이용한 진단 - 증례보고 -

이상영,임태강,Lee, Sang Young,Lim, Tae Kang 대한정형외과초음파학회 2015 대한정형외과 초음파학회지 Vol.8 No.1

사구종은 신경근동맥성 사구에서 발생하는 손톱 밑의 피하 지방층에 발생하는 드문 종양이다. 조직학적으로 고유 사구종양, 사구맥관종, 사구맥관근종으로 분류하고 있는데 이 중 사구맥관근종은 가장 드물다고 알려져 있다. 또한 다른 사구체 종양과는 다르게 사지나 손톱 밑에서 호발하지 않는다. 사구체 종양은 특징적인 임상 증상으로 일차 진단이 가능하지만 방사선학적으로는 초음파 또는 자기공명 영상이 이용되고 있다. 저자들은 수지에 발생한 재발성 손톱밑 사구맥관근종에 대한 초음파를 이용한 진단 및 수술적 치료에 대한 경험을 보고하고자 한다. Glomus tumors are rare benign neoplasm commonly found in the subcutaneous layer on nail bed that arises from a neuromyoarterial glomus. Histologically, they are classified into three group; solid glomus tumor, glomangioma, and glomangiomyoma which is the most uncommon. Unlike other type, glomangiomyomas have rarely been described in the nail bed. Although glomus tumors are often diagnosed primarily by their characteristic clinical symptoms, imaging modalities, such as ultrasonography and magnetic resonance imaging can be helpful. We present a rare case of a recurrent subungal glomangiomyoma that diagnosed by ultrasonography and treated with surgical excision.

견관절 질환에 동반된 상완 이두 건 장 두 병변

유재철,임태강,Yoo, J.C.,Lim, Tae-Kang,Laddha, Mukesh 대한관절경학회 2009 대한관절경학회지 Vol.13 No.3

스포츠 선수에서 발생한 내과하 부골증

이경태,양기원,김재영,임태강,Lee, Kyung-Tai,Young, Ki-Won,Kim, J-Young,Lim, Tai-Kang 대한족부족관절학회 2003 대한족부족관절학회지 Vol.7 No.2

Purpose: The objective of this study was to define the Os submalleolare as an any ossicles below medial malleolus of tibia and to determine the characteristics of clinical and radiological characteristics and to evaluate results of surgical treatment of Os submalleolare in sports player group. Materials and Methods: Twenty-two patients with Os submalleolare were identified between November, 1, 1998 and June, 30, 2002. Results: The mean age was 18.3 years. All patient were male and soccer players comprised 71%(20 cases). Associated disease were 8 cases(29%) of chronic ankle instabilities, one case(4%) of anterior impingement syndrome and one (4%) of plantar fascitis. The most common clinical symptom was pain during walking and sports activity and sign was tenderness around medial malleolus. Only simple radiograph could reveal presence of ossicle and differentiate with acute fracture. If symptom and sign obscured, Bone scan(7 cases) and MRI(3 cases) identify causes of pain and tenderness. As a surgical treatment, all bony fragment caused symptom and sign were eliminated and medial collateral ligament was reattached meticulously. Associated chronic ankle instability were present, modified Brostrom procedure was done simultaneously. On follow-up, The symptomatic pain were wholly disappeared at average 2.2 months (1-6months) after operation. On one year follow-up, all patients have been daily life without any complaints and have gone back to the game within three months. Conclusion: as submalleolare have relatively rare incidence in sports players and most common clinical symptom and sign is tenderness on medial malleolar area of ankle, can be diagnosed both physical examination and plain X-ray film. As a treatment, Removal of ossicle and reattachment of MCL could obtain excellent or good results.