• Clinics in Shoulder and Elbow
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• v.17 no.3
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• pp.127-133
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• 2014

Heterotopic ossification (HO) within the substance of the subscapularis tendon is a rare lesion which remains a poorly described condition with little known of the exact mechanisms involved. Furthermore, its clinical importance remains still unclear. To our knowledge, there are no studies present to data regarding HO within the substance of the subscapularis tendon, even with resultant isolated complete tear of the subscapularis tendon. Here we present a case of huge HO associated with unusual isolated complete tear of subscapularis tendon concomitant with tear of biceps long head tendon. After arthroscopic debridement for the complete tear site of biceps long head tendon, mini-open excision of the ossification and subscapularis repair with suture anchor fixation were performed. The patient showed complete recovery of strength and function of the subscapularis at subsequent 24 months follow up.

• Clinics in Shoulder and Elbow
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• v.5 no.1
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• pp.55-62
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• 2002

Purpose : To compare and analyze the results of arthroscopic subacromial decompression and rotator cuff repair between partial rotator cuff tear and complete rotator cuff tear. Material and Methods : The authors studied 42 patients of rotator cuff tear with operation and followed over one year at Dankook university hospital from September, 1998 to March, 2001 The patient average age is 53 years and follow up period is 23 months (12-42mon1hs). We obtained 22 cases in the partial rotator cuff tear group and 20 cases in the complete rotator cuff tear group. In all cases, we used ASES methods to evaluated pain scale and function. Result : In the last follow up patients, the pain scale is decreased from 7.2 to 0.9 (ASES method : 34 to 91) in the partial rotator cuff tear group and from 7.6 to 1.2 (ASES method . 29 to 88) in the complete rotator cuff tear group, but there was no evidence of statistical difference between two groups (P>0.05). The range of motion after operation were increased in two groups. Excellent to good results were obtained 93％ and 95％ patients had pain relief and satisfied function. Conclusion : Arthroscopic subacromial decompression and arthroscopic rotator cuff repair showed good results for both of (ult-thickness and partial thickness rotator cuff tear patients in pain relief and improving the function.

• Clinics in Shoulder and Elbow
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• v.4 no.2
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• pp.186-190
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• 2001

Purpose: The aim of this study was to investigate the diagnostic accuracy of Neer, Hawkins provocative tests and supraspinatus manual muscle test for the assessment of impingement syndrome, partial tear and small complete tear of De rotator cuff. Materials and Methods: Seventy-one female and 115 male patients were included in the study. Patients were divided into four groups of no impingement, impingement without tear, partial tear and small complete tear of the rotator cuff, which were confirmed by sonogram, magnetic resonance imaging and surgery. Neer and Hawkins provocative tests and supraspinatus manual muscle test were performed respectively. SAS 6.12 version was used in statistical analysis. Results: We found that Neer test had 94% sensitivity, 54% specificity for impingement without tear and 89% sensitivity, 78% specificity for partial tear and 96% sensitivity, 23% specificity for small tear. Hawkins test revealed 95% sensitivity, 54% specificity for impingement without tear and 93% sensitivity, 78% specificity for partial tear and 100% sensitivity, 23% specificity for small tear. Supraspinatus manual muscle test revealed 27% sensitivity, 94% specificity for impingement without tear and 29% sensitivity, 82% specificity for partial tear and 48% sensitivity, 82% specificity for small tear. Conclusion: Neer and Hawkins tests have high sensitivity, low specificity for impingement syndrome, partial and small tear. Supraspinatus manual muscle test had low sensitivity and high specificity. However this test was not effective to differentiate the partial and small rotator cuff tear. We thought that more effective provocative test should be designed to detect the partial and small rotator cuff tear.

• Clinics in Shoulder and Elbow
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• v.25 no.2
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• pp.93-100
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• 2022

Background: Subscapularis tendon insertion at the first facet has separate layers (deep and superficial). The purpose of this study is to evaluate postoperative clinical outcomes and radiological healing according to each layer of detachment in the first facet involving subscapularis tendon tear. Methods: Eighty-three patients who underwent arthroscopic repair due to First facet involving the scapularis tendon tear accompanying small to medium sized posterosuperior cuff tear were classified into three groups (group A: deep layer partial detachment, group B: deep layer complete detachment, but no superficial layer detachment, and group C: deep layer and superficial layer complete detachment). Subscapularis tendon healing was evaluated using computed tomography arthrogram and clinical result was evaluated using American Shoulder and Elbow Surgeons (ASES) shoulder score, Constant score and University of California Los Angeles (UCLA) shoulder score. Results: Retear rate of the subscapularis tendon was 2.2%, 18.2%, and 33.3% in group A, group B, and group C, respectively. These rates showed statistically significant difference among the three groups, which were classified by deep and superficial layer detachment in the first facet (p=0.003). Group A showed significant difference in subscapularis tendon healing compared with group B and group C (p=0.018 and p<0.001, respectively), but there was no statistical difference between group B and group C (p=0.292). Regarding clinical outcomes, there was no significant difference among three groups in ASES and UCLA score at final follow-up (p=0.070 and p=0.106, respectively). Conclusions: Complete detachment of deep layer may be related with retear occurrence regardless with detachment of superficial layer, but clinical outcome may not be related with each layer detachment in the first facet involving subscapularis tendon tear.

• The Academic Congress of Korean Shoulder and Elbow Society
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• 1995.05a
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• pp.13-13
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• 1995

The authors performed the arthroscopic decompression and cuff debridement on 47 cases in 45 consecutive patients with either stage II or stage III impingement syndrome from July 1990 to January 1994. The summarized results are as follows. 1. 47 cases in 45 consecutive patients had arthroscopic decompression for the subacromial impingement syndrome. 2. There were 31 males and 14 females and the mean age was 40 years for men and 46years for women. 3. The follow up duration was from 3 years 9 months to 1 year (average 2 years 1month). 4. Among 47 cases, 19 cases were found to have no cuff tear (stageII) 13 cases partial thickness cuff tear (stage IIIa) 10 cases complete tear on cuff less than 3 cm long (stage IIIb) and 5 cases complete tear on cuff more than 3 em in length (stage IIIc). 5. The arthroscopic subacromial decompression and rotator cuff debridement was a good treatment method in stage II and stage IIIa and stage IIIb. in the case of stage IIIc rotator cuff tear, it was useful for pain relief and improvement of shoulder function.

• Journal of Trauma and Injury
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• v.28 no.1
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• pp.21-26
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• 2015

Complete radial tears of the lateral meniscus are relatively rare. Once torn, the injury can be debilitating due to disruption of the circumferential fibers of the meniscus. We experienced a case of a lateral meniscus with a complete radial tear at the midbody, where the two torn ends were displaced more than 1 cm and could not be approximated during arthroscopy. Thirteen months after surgery, follow-up MRI and second-look arthroscopic findings showed that the complete radial tear has healed spontaneously. However, twenty nine months after the second-look arthroscopy, the patient complained of severe knee pain during exercise. On follow-up MRI, increased sclerosis and newly developed bone marrow edema were observed in the lateral femoral condyle, compared with previous MR images. Finally, we performed meniscal allograft transplantation due to the defective properties of the completely healed lateral meniscus.

• Journal of the Korean Arthroscopy Society
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• v.12 no.3
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• pp.180-184
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• 2008

Purpose: This study evaluated the differences in associated shoulder lesions on complete rotator cuff tear patients regarding ages and gender. Materials and Methods: Between June 2003 and March 2006, 109 patients (59 males, 50 females) who received arthroscopic shoulder surgery for their complete rotator cuff tear were selected and their associated shoulder lesions were analyzed. Ages were between 24 years, the youngest, and 75 years, the oldest. Groups by age were under 59 years group and over 60 years group, and associated lesions of patients to be analyzed were Acromioclavicular arthritis, SLAP(shoulder labrum anterior and posterior) lesion, and biceps tendinitis, and statistic analysis were performed by Khai-square method. Results: For acromioclavicular joint arthritis, over 60 years old group showed higher association rate compared to under 59 years young group, and for SLAP lesions, under 59 years young group showed higher association rate compared to over 60 years old group only in men. Conclusion: For diagnosis and treatment of complete rotator cuff tear patient, associated shoulder lesions in different ages should be considered, especially associations of SLAP lesions in young male patients, and acromioclavicular joint arthritis in old age patients should be verified.

• 대한관절경학회:학술대회논문집
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• 2006.11a
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• pp.40-41
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• 2006

• Journal of the Korean Arthroscopy Society
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• v.2 no.1
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• pp.21-24
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• 1998

There are many controversies in managing fresh substance tear of PCL. Conservative treatment of partial tear is generalby accepted idea, and less than 10mm posterior instability is known to be acceptable in terms of funtion. More than 10mm posterior instability and complete fresh tear of the ligament are regarded as candidates of reconstruction of the ligament. However, many authors believe that posterior instability may be a cause of early osteoarthritis in the long run. Author described the rationale and the technique of arthroscopic primary repair of the PCL in case of proximal and mid 1/3 substance tear. Postoperative rehabilitation program and their rationale were also described.

• Journal of the Korean Arthroscopy Society
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• v.13 no.1
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• pp.77-81
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• 2009

In patients with full-thickness tears of the rotator cuff, the tendon is usually detached from its bony insertion in the greater or lesser tuberosity. We experienced an unusual pattern of rotator cuff tear in two cases, in which complete rotator cuff tears occurred at the tendinous portion (i.e., intrasubstance tears) with more than a 1cm remnant attached to the greater tuberosity. Arthroscopic tendon-totendon repair was performed without remnant removal in both cases. Follow-up MRI at 6 months showed re-tear of the rotator cuff at the previous tear site in both of our patients. To prove the availability of arthroscopic tendon-to-tendon repair in such cases, a larger case follw-up and biomechanical studies are required.