摘要:

ABSTRACTA sufficient amount of dense keratinized connective tissue attached to bone and the cervical area of the tooth is required for functional masticatory mucosa. Periodontal plastic surgery has furnished numerous reconstructive and regenerative techniques to correct the mucogingival defect. Laser technology has provided the ability for tissue fusion and incisions with better visual and mechanical access, decreased intraoperative time, improved hemostasis, and less postoperative discomfort. This article describes a technique for incisions and tissue fusion for gingival grafts with an argon laser.

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.1

年代:1995

数据来源: MAL

摘要:

ABSTRACTIntroduction of the CO2laser by Strong and Jako in 1972 for laryngeal papilloma removal ushered in a new dimension in surgery of the larynx. Because it increases visualization and hemostasis and decreases tissue edema and morbidity, the CO2laser has enhanced the effectiveness of microlaryngoscopic surgery. Forty patients with squamous cell carcinoma of the supraglottis (T1–T3) underwent transoral CO2laser resection. Twenty of these patients had a combined neck node dissection and postoperative radiotherapy. Advantages of the laser transoral approach are facility, immediate restoration of swallowing, shortened hospitalization, and avoidance of tracheostom

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.7

年代:1995

数据来源: MAL

摘要:

ABSTRACTWound healing following the use of Nd:YAG laser with different frequencies and energy parameters (20 pps and 1.75 W/30 pps and 3.0 W), and the conventional scalpel incision were studied over a period of 4, 7, 14, 21, and 28 days in the rat skin. The low-energy laser wounds could not be significantly differentiated from the conventional incisions although less damage and inflammatory reaction, increased matrix production, and only a little wound contraction could be demonstrated. In the high-energy lased tissues extensive damage and an increased inflammatory reaction were present. The low-energy Nd:YAG and scalpel incisions established a normal wound healing without scar tissue formation compared to the high-energy Nd:YAG, where the necrosis was higher.

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.11

年代:1995

数据来源: MAL

摘要:

ABSTRACTPercutaneous laser disc decompression (PLDD) was pioneered by Dr. Peter Ascher and myself in 1986. This report describes patient selection, operative technique, laser dosimetry, and results in 352 cases with an 8 1/2-year follow-up. The conclusion is that PLDD is relatively non-invasive, safe, simple and effective.

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.17

年代:1995

数据来源: MAL

摘要:

ABSTRACTLaser-assisted procedures have been applied in arthroscopic surgery with varying degrees of success since the end of the 1970s. The introduction of pulsed holmium and erbium:YAG lasers in the near-infrared range seems to signify a more promising alternative in arthroscopic applications than the CO2and Nd:YAG lasers that were propagated initially. Since a flexible transmission system for erbium:YAG lasers is still not available, commercialization and thus the clinical utilization of holmium: YAG lasers is more advanced at present. This paper introduces the results of an interdisciplinary research project. With the aid of photomacroscopic examination, light and scanning electron microscopic investigations, changes to temporomandibular joint structures were detectedin vitroafter irradiation with an erbium:YAG laser system. This investigation revealed that the optimum average energy density and pulse duration for the erbium:YAG laser radiation for the purpose of arthroscopic temperomandibular joint (TMJ) surgery—which means efficient etch rate and minimal adjacent injury—seem to be about 24–42 J/cm2and 120–240 μsec, resp

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.23

年代:1995

数据来源: MAL

摘要:

ABSTRACTIn order to evaluate the efficacy of laser-assisted disc decompression (LADD) as an alternative treatment modality for nonsequestered herniated nucleus pulposus of the lumbar spine, we used the Holmium:YAG laser with Sidefire laser fiber on 223 consecutive patients who met inclusion criteria. Patients were evaluated by an independent interviewer postoperatively, and at 1 week, 3 months, 6 months, and 1 year. Ratings were based upon the modified Macnab criteria. All patients presented with leg pain with or without back pain that had failed a minimum of 6 weeks conservative treatment (e.g., rest, NSAIDs, physical therapy, epidural steroid injections). Patients were not considered for LADD if the primary source of neurologic findings was a result of scar tissue from a previous discectomy, lateral recess or central stenosis, or sequestered discs. At 1 year postoperative follow-up, the surgical success rate was 84%. For patients requiring an additional LADD procedure, results at 6 month follow-up yielded surgical success rates of 92.3% and 90% for additional level and index level LADD, respectively. LADD appears to be a viable treatment modality for nonsequestered herniated nucleus pulposus recalcitrant to conservative treatment. LADD may represent a more cost-effective and safer treatment alternative to traditional invasive surgical procedures and other percutaneous methods.

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.27

年代:1995

数据来源: MAL

摘要:

ABSTRACTA new multipurpose CO2laser therapy instrument has been developed. It is a highly efficient medical instrument. By use of high laser power density to coagulate, evaporate, and cut body tissue on the nidus, the operation can be controlled and has obvious curative effects. Unlike other kinds of CO2laser therapy instruments, this device has an advanced switching power supply (SPS) and red guiding light system. With an overcurrent protective device, an overvoltage protective device, and a high-voltage shield device, it provides efficiency, stability, reliability, and low loss. The plastic casing does not leak electricity and the film switches are designed for clinical practice convenience. Additionally, the laser power is numerically displayed and can be set prior to the procedure. The distinct visible guiding light of the laser output makes the operation more convenient and accurate. Because of this unique design and properties, it is a leading model in China. The instrument can be widely used for surgery, gynecology, dermatology, and otolaryngology. The radiation therapy of low laser power density has the effect of being antiinflamatory, analgesic, and antipruritic, and promotes cure of the epithelium. Moreover, it is effective to treat all sorts of sprains, scapulohumeral periarthritis, arthritis, sciatica, and surface ulcers.

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.33

年代:1995

数据来源: MAL

摘要:

ABSTRACTFour cases of polypoidal carcinoid tumors in the duodenum were treated with Nd:YAG laser ablation after histological confirmation. None of the patients had any distant spread of the tumor. All the four tumors were less than 2 cm in size. In each case, the tumor was fully ablated in a single endoscopic laser sitting. All cases were done under local anesthesia and the patients were hospitalized for 1 day. All patients have been symptom free over a mean follow up period of 13 months (6 to 20 months). There has been no endoscopic evidence of local recurrence. Laser therapy is safe and effective and carries no mortality or morbidity. Endoscopic laser ablation is an effective alternative to surgical resection of small carcinoid tumors.

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.37

年代:1995

数据来源: MAL

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.39

年代:1995

数据来源: MAL

ISSN:1044-5471    

DOI:10.1089/clm.1995.13.41

年代:1995

数据来源: MAL