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At least 577 records · Page 32Linked to original sources
PubMed1993

The results of arthroscopic debridement of glenoid labral tears based on tear location.

A retrospective, average 2-year review of 14 patients with a primary glenoid labral tear treated by arthroscopic debridement was conducted to evaluate the long-term results of labral debridement based on tear location in preoperatively stable shoulders. All patients with concomitant pathology requiring an additional open or arthroscopic procedure were eliminated from this study. Every patient complained of shoulder pain mainly with overhead activities and nine patients (64%) also described "clicking" with shoulder movement. All shoulders were stable to translation in all quadrants during the preoperative examination and examination under anesthesia. The functional results at 6 months' follow-up were 93% excellent or good. However, the results at > 1 year's follow-up (average 2 years) were only 71% excellent or good, with a statistically significant 50% of patients decreased in function. The best results were in the superior and anterior-inferior regions. Three patients with large anterior-superior lesions (60%) developed postoperative instability noted at > 6 months postsurgery, representing a significant difference between groups. One of these patients was able to regain a good functional result with rotator cuff strengthening therapy. Close observation of patients after large anterior-superior labral tear arthroscopic debridement is advised because they are at risk for the delayed onset of instability.

Adolescent↗
PubMed1985

Is there still a role for knee arthrography?

To assess the continued value of arthrograms in the wake of arthroscopic diagnosis, an analysis of arthrographic data on 240 knees was carried out. The accuracy, sensitivity, and specificity of the arthograms were compared with the arthroscopic findings for each knee. For meniscal lesions, the arthrogram is reasonably accurate. An algorithm is presented that defines the relative roles of arthrography and arthroscopy.

Arthrography↗
PubMed2001

Arthroscopic treatment for traumatic hip dislocation with avulsion fracture of the ligamentum teres.

Traumatic hip dislocation in children is a rare condition. Immediate closed reduction is a treatment of choice, but when incongruent reduction results, it can be due to interposition and requires open arthrotomy. We present a previously unreported technique of arthroscopic treatment that was used successfully for traumatic hip dislocation in a 10-year-old girl with impingement of the avulsed ligamentum teres. Arthroscopy was effective in confirming the exact nature of the interposition material and excising the fragment with minimal invasion.

Arthroscopy↗
PubMed2003

A review of the function and biomechanics of the meniscofemoral ligaments.

PURPOSE: The goal of this study was to review current knowledge on the anatomy, biomechanics, and functions of the meniscofemoral ligaments. TYPE OF STUDY: Literature review. METHODS: A systematic search of the literature spanning the past 2 centuries was performed. This revealed several anatomic and biomechanical studies, which were analyzed for the presence, incidence, function, and biomechanics of the meniscofemoral ligaments. RESULTS: An analysis of 16 anatomic studies revealed that from 1,022 cadaveric knees examined, 931 (91.1%) had at least 1 meniscofemoral ligament; an anterior meniscofemoral ligament was present in 390 (48.2%) of specimens, and a posterior meniscofemoral ligament was present in 569 (70.4%). The 2 ligaments coexisted in 257 knees (31.8%). This high incidence might imply a functional role for these structures. Early theories on the function of these ligaments focused on their role as secondary restraints supplementing the posterior cruciate ligament. More recent hypotheses have concentrated on a role in guiding the motion of the lateral meniscus. CONCLUSIONS: The contribution of the meniscofemoral ligaments in the prognosis and management of posterior cruciate ligament and meniscal injuries remains undetermined. An examination of the structure, properties, and function of the meniscofemoral ligaments reveals that more biomechanical and imaging research is required, together with clinical observations, on the consequences of rupture of these ligaments.

Biomechanical Phenomena↗
PubMed1997

[Indirect MR arthrography in the diagnosis of lesions of the labrum glenoidale].

PURPOSE: It has been shown that intravenous administration of contrast media produces an MR arthrographic effect without the need for intraarticular injection. This is the first study evaluating this new technique of indirect MR arthrography in the diagnosis of glenoid labrum tears. METHODS: 28 patients with clinically suspected labral injuries were prospectively investigated (1.5 Tesla, flexible surface coil). A plain MR examination of the shoulder (transverse and oblique-coronal orientation, T1-weighted spin- [TE/TR 15/675], proton density- and T2*-weighted gradient echo [TE/TR/Flip 14,32/600/30 degrees] sequences) and indirect MR arthrography (transverse and oblique-coronal orientation, fat-suppressed T1-weighted spin-echo sequences [TE/TR 15/675], intravenous injection of gadopentetate dimeglumine [0.1 mmol/kg], followed by 10-15 min of joint movement) were performed. Results were confirmed by arthroscopy and/or open surgery. RESULTS: Indirect MR arthrography significantly improved delineation of the glenoid labrum and hyaline cartilage (p < 0.05). Sensitivity and specificity of indirect MR arthrography in the diagnosis of labral injuries were 90% and 89%, compared to 79% and 67% of the native MR examination. CONCLUSION: Indirect MR arthrography is a promising non-invasive technique in the evaluation of the glenoid labrum.

Adult↗
PubMed1977

Femorotibial surgery in the dog.

Although the femorotibial joint is subject to a number of common abnormalities which have been investigated in the last few years there is still no obvious and agreed optimal treatment in many instances of abnormality. The clinical derangements which occur in the joint are considered and an assessment is made of the state of aetiological knowledge. The most useful way of diagnosing and treating the conditions are also considered.

Animals↗
PubMed1980

Prearthrotomy diagnostic evaluation of the knee: review of 100 cases diagnosed by arthrography and arthroscopy.

The results of 100 prearthrotomy evaluations of the knee including clinical examinations, arthrography, and arthroscopy were correlated with surgical findings. Arthroscopy was most accurate for meniscal lesions involving the central edge and anterior horn, anterior cruciate lesions, and chondromalacia. Arthrography was most accurate for midbody and peripheral tears. The combined accuracy of arthrography and arthroscopy in diagnosing all pathology within the 100 operated knees was 97%. Our results indicate that prearthrotomy arthroscopy and arthrography are complementary examinations and not mutually exclusive.

Adolescent↗
PubMed1975

Study on the surface shape and contours of the femoral head and acetabulum of the human joint.

(1) The degree of change and degeneration of the surface of articular cartilage were classified into 6 stages and a distribution chart indicating 6 stages of classification was prepared for each case. (2) The construction of the superficial fine fibrous net-work of the cartilage of the weight-bearing area is different from that of the non-weight-bearing area. (3) The construction of the fiber underneath the surface of the acetabular cartilage is different from that of the surface of femoral head cartilage underneath. (4) When only weight-bearing part was compared, the degeneration at the upper anterior side was least for both femoral head and acetabulum and was most at the slightly posterior part of the upper outer side. (5) The fine fiber of superficial layer of the femoral head and acetabular cartilage were peeling from the periphery toward the center, but no difference of surface roughness was observed by way of measurement directions. (6) Surface roughness of the cartilage increases in proportion to the degree of degeneration and change. (7) The surface roughness of the acetabulum is about twice as large as that of the femoral head cartilage, this being due to the difference in the degree of degeneration. (8) There are 4 kinds of undulations at the surface of the femoral head cartilage. (9) Both femoral head and acetabulum have less waviness of large size at the part bearing large weight. (10) The contour of the femoral head as a whole is slightly ellipsoidal, whose longitudinal axis extends in a craniocaudal direction but the weight-bearing part is nearly circular. (11) The general contour of the acetabulum indicates an ellipsoidal shape with its craniocaudal longitudinal axis slightly inclined forward or backward. The contour of the slightly postero-upper part which is considered to be the maximum weight-bearing part is slightly flat ellipsoidal.

Acetabulum↗
PubMed1993

[Use of the holmium 2.1 laser in surgical arthroscopy].

After having been used for several years in medicine, laser energy has now been applied to arthroscopic surgery. Laser Holmium 2.1 is presently one of the most advanced machine in this field. We present here our initial experience in 40 cases compared with a control group of 40 cases treated by traditional arthroscopic surgery. This approach is less traumatic, the operative time is reduced and the postoperative period is characterized by a more complete recovery of motility and a reduction in postoperative pain.

Adolescent↗