MR variability of collagen meniscal implant remodelling in patients with good clinical outcome.

Purpose: Collagen meniscal implants (CMI) have variable imaging findings on MRI and it remains ambiguous, if alterations may be present in asymptomatic patients. The aim was, to evaluate MR morphological characteristics and volume of CMI in the early, mid- and long-term follow-up.

Methods: Fifty-seven patients (mean age, 43.

Ongoing MRI remodeling 3-7 years after collagen meniscus implantation in stable knees.

Purpose: The purpose of the present study was to evaluate the clinical and radiological 3-7 years outcomes of patients who underwent collagen meniscus implantation in stable or stabilized knees. It was the hypothesis that using the collagen meniscus (CMI) good clinical 3-7 years outcomes with low pain levels are achieved.

Methods: Thirty-nine patients (male:female = 30:9, mean age 34 ± 10 years) underwent arthroscopic CMI after subtotal medial (n = 32) or lateral meniscectomy (n = 7).

Two-Year Clinical Results of Lateral Collagen Meniscus Implant: A Multicenter Study.

Purpose: To present the 2-year results of the use of the lateral Collagen Meniscus Implant (CMI) for the treatment of irreparable lateral meniscal lesions or partial lateral meniscal defects, to investigate the potential predictors of clinical results, and to monitor device safety.

Methods: Forty-three patients with a mean age of 30.1 ± 12.

One-year clinical and MR imaging outcome after partial meniscal replacement in stabilized knees using a collagen meniscus implant.

Purpose: The purpose of the study was to evaluate the clinical and radiological outcomes after medial/lateral collagen meniscus substitution (CMI) at 12 months postoperatively.

Methods: Sixty-seven patients (m:f = 47:20, mean age 36 ± 10 years) underwent arthroscopic CMI after previous subtotal medial (n = 55) or lateral meniscectomy (n = 12) due to persistent joint line pain (n = 25) or to prophylactic reasons (n = 42). Clinical follow-up consisted of IKDC score, Tegner score, Lysholm score, and visual analog scale for pain and satisfaction (preinjury, preoperatively, and 12 months postoperatively; follow-up rate 90 %).

Primary Hemiarthroplasty for Proximal Humeral Fractures in the Elderly: Long-Term Functional Outcome and Social Implications.

Background: Primary shoulder hemiarthroplasty is an established treatment modality for complex fractures of the proximal humerus. Long-term functional outcome is often disappointing. However, little is known about social implications particularly in the elderly.

[Timing of the surgery of rupture of the anterior cruciate ligament. Effects of acute or delayed surgery on arthrofibrosis rate and work disability].

The optimal time to perform acute ACL reconstruction with respect to arthrofibrosis is discussed. Most authors prefer delayed surgery. The definition of the term "acute" varies between 48 hours and 4 weeks.

Primary anterior shoulder dislocation and rotator cuff tears.

In a prospective controlled study 167 patients with 167 primary traumatic anterior shoulder dislocations underwent early ultrasonograpic evaluation for rotator cuff tears. We found 53 (31.7%) full-thickness cuff tears in this group.

[Arthroscopic repair of the medial retinaculum after first time dislocation of the patella].

Between March 1994 and December 1997, an arthroscopic repair of the medial retinaculum after first time dislocation of the patella was performed 38 times in 34 patients. The operative technique is being described as well as the results after an average follow-up of 25 months in 31 cases. In the group with radiologically determined predisposing factors (n = 20) as many osteochondral flakes were found as in the group without these factors, but there were significantly less chondral lesions on the lateral femoral condyle and the medial patellar facet.

[Long-term peridural anesthesia and minimally invasive therapy of arthrofibrosis of the knee joint].

We report on our experiences with continuous epidural anesthesia after arthrolysis of the knee joint. The restoration of knee motion is the main goal of our treatment regimen which includes daily passive full mobilisation of the knee joint with a continuous epidural catheter after arthroscopic lysis and a functional after treatment with full weight bearing. From December 1992 to November 1996 32 arthroscopic lysis have been performed at the Surgical Department of Triemli Hospital in Zürich, Switzerland.

Modified Elmslie-Trillat procedure for instability of the patella.

The purpose of this study was to determine whether or not the modified medial transfer of the ligamentum patellae in case of objective instability of the patella is an adequate therapy and if it is possible to improve the patellar congruence angle by this method. Between October 1987 and April 1993, 41 operations were performed in 37 patients with medialization of the medial third of the ligamentum patellae with the corresponding part of the tibial tubercule. Four patients needed a bilateral operation; the two interventions were not performed at the same time.

[Ultrasound findings after shoulder dislocation].

Aim: Sonography of the shoulder is an effective method for detecting tears of the rotator cuff and bone lesions. The purpose of this study was to evaluate prospectively the sonographic findings after shoulder dislocation.

Methods: Sonography was performed on 208 patients with 210 shoulder dislocations, which were all verified by radiography.

[Isolated fracture of the lesser tuberosity of the humerus: case reports and review of the literature].

Only 17 cases of isolated avulsion fracture of the lesser tuberosity have been reported in the literature since Hartigan's report in 1895. Whereas in children, conservative treatment is almost successful, in adults operative restoration is the method of choice in order to obtain full painless range of motion with normal strength of muscle control. Surgical excision of the fragment of lesser tuberosity after failed conservative treatment may relieve the patient's symptoms.

[Preoperative arthroscopy in fresh complicated internal knee lesions].

In a prospective study, 197 preoperative arthroscopies were carried out on 194 patients with fresh severe internal lesions of the knee. The injuries are analyzed, with reference in particular to diagnosis and treatment of additional meniscus lesions. Advantages and disadvantages of the procedure are discussed.

[Preoperative arthroscopy in fresh complex internal knee injuries].

With reference to a prospective study 197 preoperative arthroscopies were carried out on 194 patients with fresh severe internal lesions of the knee. The injuries are analysed, in particular diagnostic and treatment of additional meniscus lesions. Advantages and disadvantages of the procedure are discussed.

[Preoperative ERCP and laparoscopic cholecystectomy for treatment of choledocholithiasis].

Out of 110 patients suffering from gallstone-related symptoms, 21 underwent ERCP prior to laparoscopic cholecystectomy. Indications for this combined treatment were laboratory signs of cholestasis (36%), pancreatitis (29%), pathological IVC (18%), sonographic evidence for bile duct dilatation (10%) and cholangitis (7%). Local and general complications were not increased neither intraoperatively nor postoperatively.

[Preoperative arthroscopy immediately before reconstruction of internal knee injuries].

With reference to a prospective study 197 preoperative arthroscopies were carried out on 194 patients with fresh severe knee injuries. The injuries are analysed, in particular for diagnosis and treatment of additional meniscus lesions. Advantages and disadvantages of the procedure are discussed.

[The gallbladder with severe pathologic changes: a contraindication for laparoscopic cholecystectomy?].

In the beginnings of laparoscopic cholecystectomy a severe pathological alteration of the gallbladder or stones of the common bile duct were regarded as relative contraindications to the method. However increasing experience and improve technic have shown, that even a severe pathology of the gallbladder such as chronic cholecystitis with wall thickening, acute or subacute inflammation or a porcelaine gallbladder can be laparoscopically managed. Operation time in such cases is longer, but median hospital stay is the same as in uncomplicated cases.

[Retroperitoneal liposarcoma. Clinical aspects, diagnosis, therapy and prognosis].

Retroperitoneal liposarcoma is a very rare tumor. There are about 250 cases in the world literature. This article discusses our four cases and the literature concerning this rare disease.