Biomedical subjects

I Cizmár

Publications and source records attributed to I Cizmár.

15 recordsLinked to original sources

PubMed2007

[Defect of the femoral condyle in the knee after patellectomy. Long-term results of fresh massive osteochondral allografting].

The presence of a massive full-thickness osteochondral defect in the knee of young and active individuals is an unsolved problem in orthopedic surgery, especially in post-traumatic large bone defects. Fresh massive osteochondral allografts have been used for many years but mostly in oncology but not in post-traumatic cases. This case report describes a 20-year-old right leg-dominant woman, who, at age 19, sustained open Gustilo-Anderson type III comminuted fractures of the left patella and lateral femoral condyle in a motorbike accident. Initial treatment included immediate débridement and patellectomy with lavage. The large defect of the femoral condyle was reconstructed with a massive osteochondral allograft 1 year after the injury. The graft was obtained from our institutional tissue bank. The damaged bearing part of the condyle was resected to bleeding bone to create the nearly rectangular defect. The central condyle wall remained intact. The graft was trimmed to fit the defect and fixed with three cancellous 6.5-mm screws. The meniscus was not damaged. Partial weight bearing was permitted at 8 weeks and full weight bearing at 16 weeks after the surgery. At the last follow-up control 10 years after the surgery, no evidence of tibiofemoral arthrosis was present. The allograft-host interface was not visible. The radiodensity of the graft was nearly identical to the host bone. The Lysholm score and clinical findings were identical (100 points) to those 18 months after the surgery. The patient was extremely satisfied without complaints at 30 years of age.

Adult↗

PubMed2006

[Minimally invasive and navigated implantation for total knee arthroplasty: X-ray analysis and early clinical results].

Total knee arthroplasty (TKA) alignment is one of the most important factors in long-term prosthesis survival. Minimally invasive surgical (MIS) procedures are becoming more common. There may be an increased overall complication rate, especially component malpositioning, due to poor visualisation. The disadvantage of restricted visualisation in the less invasive technique can be compensated by a navigation system. This combined procedure is described in this paper. A total of 40 Search Evolution TKAs were implanted using OrthoPilot navigation in the standard manner, and 40 TKAs were implanted using MIS via a subvastus approach. Primary osteoarthritis of the third or fourth degree, without severe valgus deformity, was the indication. These patients were then selected at random as they came to the institution. The results were evaluated radiologically and clinically.Pain, range of motion, gait and function, and the entire clinical score 10 days after the operation were significantly better in the MIS-group. At 6 and 12 weeks postoperatively, these results were no longer statistically significant. Ideal radiological results were obtained in all cases. No differences in limb axis and component alignment were found after the operation between the navigated groups. MIS is technically very demanding. That is why it should be used only in carefully selected cases. Its advantages occur in the first weeks after the surgery. The long-term results must still be determined.

Aged↗

PubMed2006

[Injury of the scapholunate interosseal ligament--scapholunate dissociation].

Scapholunate interosseal ligament tears manifested with pain, a popping, weakness of the wrist, or limited wrist motion, are probably the most frequent cause of carpal instability. Insufficiency of the injured scapholunate ligament results in pathologic scaphoid and lunate position with wrist kinematics changes that cause irreversible degenerative arthrotic changes. The timely diagnosis combined with proper treatment is required for successful therapy and carpal collapse prevention.

Carpal Bones↗

PubMed2006

[Intra-articular calcaneal fractures].

PURPOSE OF THE STUDY: In this retrospective evaluation the authors present the group of patients with intraarticular calcaneal fractures that were treated from an extended lateral approach. MATERIAL: In the period from 2001 to 2003, 32 patients with intra-articular calcaneal fractures were treated by osteosynthesis, using a plate, from the extended lateral approach. All patients were men at an average age of 41.7 years (range, 20 to 63 years). The most frequent cause of injury was a fall from height. A combined injury was recorded in eight patients. The right calcaneus was broken in 11 and the left one in 21 patients. Patients with bilateral calcaneal fractures were not included in the evaluation. METHODS: Preoperative X-ray and CT examinations of the fractured calcaneus were carried out in all patients. The Sanders classification of calcaneal fractures was used for fracture evaluation. All patients were treated from the extended lateral approach by osteosynthesis with the use of a plate. Spongioplasty using an autologous graft from the iliac crest or an allogenous graft was carried out in 21 and 11 patients, respectively. The patients were operated on within an average of 7.3 days of admission (1 to 16 days), and were followed up for at least one year (average, 30 months) after surgery. Postoperative evaluation was based on radiographs and the results of the Kerr rating system obtained from questionnaires. RESULTS: The outcomes were excellent, 36 %; very good, 44 %; good, 17 %; and poor, 3 %. The Böhler angle postoperatively assessed on radiographs was on average + 28.5 degrees. All patients showed bone union, and no pseudoarthrosis was recorded. One patient had to be treated for a late purulent complication requiring metal removal. One patient underwent early wound revision due to postoperative hematoma. The metal was removed on average at 13 months postoperatively (range, 2.5 to 26 months). DISCUSSION: The treatment of intra-articular calcaneal fractures is determined by the type of injury, state of soft issues in the limb injured, patient's status and surgeon's experience. CONCLUSIONS: Our results as well as literature data show that exact reduction of the posterior subtalar joint with internal osteosynthesis can achieve good clinical outcomes in patients with intraarticular calcaneal fractures, particularly when the fractures are classified as Sanders II and III types.

Adult↗

PubMed2005

An anatomical study of the anterior interosseous nerve and its innervation of the pronator quadratus muscle.

This anatomical study of 40 upper limbs from cadavers investigated the branching pattern of the anterior interosseous nerve in its distal part using the operating microscope. An articular branch to the wrist joint and/or the distal radioulnar joint was only found in seven of the 40 specimens and was always a small terminal continuation of the anterior interosseous nerve after the nerve had passed through the pronator quadratus and innervated it. Therefore, we do not recommend division of the anterior interosseous nerve from the dorsal approach through the interosseous membrane before it gives off its muscular branches to the pronator quadratus. This risks damage of the innervation of this muscle of importance for initiation of hand pronation.

Forearm↗

PubMed2005

[Partial denervation of the wrist by excision of the interosseous nerves from the dorsal approach].

PURPOSE OF THE STUDY: The aim of the study was to optimize, on the basis of an anatomical study, the technique of partial denervation of the wrist in terms of safety for preserving motor innervation of the quadrate pronator muscle, and to include this technique in the range of reconstruction operations for the treatment of degenerative carpal diseases. MATERIAL AND METHODS: The technique of partial denervation of the wrist, using excision of the sensitive branches of the dorsal and volar interosseous nerves, carried out by one-stage surgery from the dorsal approach is presented in a group of 28 patients. The partial denervation was always performed in addition to reconstructive surgery on the proximal carpals and the distal radioulnar joint. On the basis of an anatomical study involving 40 cadaverous upper extremities, the authors determined the location for resection of the sensitive branch of the volar interosseous nerve that is not associated with the risk of damaged motor innervation of the quadrate pronator muscle. RESULTS: A reliable identification of the motor branches of the volar interosseous nerve was achieved when an approximately 2-cm incision in the interosseous membrane was made 1 cm distal to the passing anterior branch of the interosseous artery that was clearly seen in the operating field. This corresponded to an incision in the skin, leading in the proximal direction at a length of about 7 cm, made 2 cm proximal to the distal radio-ulnar joint. DISCUSSION: The identification of motor branches is often difficult and therefore the authors recommend resection of the sensitive branch of the volar interosseous nerve to be performed in a safe zone that was determined by a large number of anatomical dissections. Partial denervation carried out according to the principles of a physiological procedure does not pose a burden for the patient and can markedly enhance the effect of reconstructive surgery. CONCLUSION: Partial denervation of the wrist performed from the dorsal approach is a simple procedure easy to combine with other reconstructive operations on the wrist.

Adolescent↗

PubMed2005

[Heel pain].

Heel pain is quite frequent clinical symptom in our population. Successful therapy derives from the problem aetiology. The most frequent source of pain is the mechanical basis, both on dorsal and plantar side of calcaneum. Therapy includes a variety of procedures, from routine measures to surgical intervention.

Biomechanical Phenomena↗

PubMed2005

[Our experience with repair of the scapholunate ligament using the MITEK bone anchor].

PURPOSE OF THE STUDY: A complete rupture of the scapholunate (SL) interosseal ligament results in palmar flexion of the scaphoid and dorsiflexion of the lunate that leads to disintegration of the carpal circle and the development of scapholunate dissociation with dorsal intercalary segment instability. If the injury is not treated properly or early, the abnormal position of the scaphoid and lunate results in degenerative changes of the wrist shown by X-ray and referred to as scapholunate advanced collapse (SLAC). The aim of this study was to evaluate the results of our method used for reconstruction of the SL ligament by means of MITEK bone anchors in acute injury. MATERIAL AND METHODS: The group included 17 patients, 12 male and 5 female, aged 18 to 49 years, with complete SL ligament ruptures. The dominant hand was affected in 10 patients. After the diagnosis had been confirmed, we performed reconstructive surgery involving re-attachment of the SL ligament to the scaphoid by means of the MITEK Mini G2 anchor. The patients were examined by X-rays at 3, 6, 12 and 24 months after the operation to assess the SL angle, capitolunate (CL) angle, SL distance and signs of SLAC. Hand function and pain were evaluated on the basis of the Wrightington Hospital Wrist Scoring (WHWS) system. RESULTS: The average preoperative value of the SL angle was 79 degrees and was corrected to 38 degrees by surgery. By subsequent physical therapy for 12 months, an SL angle of 51 degrees was achieved and increased to 52 degrees during the following year. The CL angle, showing a preoperative average value of 34 degrees, was corrected by surgery to 6 degrees, further increased to 9 degrees by exercising and then remained unchanged. The average SL distance of 5.25 mm preoperatively was reduced to 2.75 mm by surgery with no further change. At 24 months of follow-up, the results of pain evaluation were excellent, good and satisfactory in 41 %, 47 % and 12 % of the patients, respectively, with no poor outcome indicating restriction of the patient's daily activities. Functioning of the hand was excellent in 47 %, good also in 47 % and satisfactory in 6 % of the patients. The range of motion was excellent, good and satisfactory in 24 %, 64 % and 12 % of the patients, respectively. No stiff wrist was recorded after reconstruction of the SL ligament by our method. The hand grip was evaluated as excellent in 47 %, good in 35 % and satisfactory in 18 % of the patients. DISCUSSION: The results show that by reconstruction of the SL ligament with the use of MITEK anchors, radiographic values of the SL and CL angles and SL distance can reach the normal levels within 24 months of the operation. As assessed by the WHWS system, excellent and good results were achieved in 88 % of the wrists treated. Similarly, at 24 months of followup, excellent or good functional outcomes were reported by 94 % of the patients, and excellent or good results in relation to the range of motion and hand grip were experienced by 88 % and 82 % of the patients, respectively. CONCLUSIONS: When treating complete SL ligament ruptures within 4 weeks of injury, stabilization with Kirschner's wires, re-attachment of the SL ligament and suture of the articular capsule are adequate procedures leading to the best results. The ligament reconstruction with MITEK anchors, as presented here, is a relatively simple method giving good results. For treatment of chronic instability it is necessary to use other surgical procedures that, however, will reduce wrist mobility to a greater extent.

Adolescent↗

PubMed2003

[Personal experience with injuries of the rectum and anus].

Authors analyze some new knowledge in treatment of rectal and anal injuries proceeded from own clinical experience in comparison with studies of a range of foreign authors published recently. During last ten years together 24 injured patients with this diagnose were operated in Traumatological Hospital Brno, primary reconstruction was performed in 10 patients, secondary reconstruction after precise examination of pelvic fundus pathophysiology in 14 patients, mostly transferred from other clinics. Authors prefer primary treatment in 3 hours after injury. This opinion is supported by control examinations after performed reconstructions.

Anal Canal↗

PubMed2003

[Ulnar-carpal impingement after fractures of the distal radius].

The authors describe the group of 23 patients (16 women, 7 men), who were operated during 2000-2003 on ulna-carpal impingement or the syndrome of ulna impact on the basis of "plus variant" of ulna or also "long ulna". There was a fracture of distal radius in anamnesis of all these patients. The condition was solved in 18 patients (mean age 51 years) by reducing the ulna by 4.5 cm on the average (range 2-10 mm). In five patients (mean age 49 years), the radius-ulna desis sec. Sauvé-Kapandij was performed. The results are evaluated with the time lapse of 6 months on the average (range 3-26). The resulting evaluation indicates that in all patients, who were not affected by radius-ulna arthrosis, a simple reduction of ulna resulted in an improvement of the extent of movements and improved subjective complaints. Patients with radius-ulna arthrosis, where the ulna-carpal impingement was solved by radius-ulna desis, suffer from worse long-term functional results. The authors also analyze complications of the interventions. Posttraumatic deformations in the area of distal forearm should be solved early before degenerative changes develop. The is the only way how to expect good results of the operation and favorable effect for the patient.

Adult↗

PubMed2003

Reconstruction of functional handgrip in traumatic tetraplegia--case study.

The objective of this study is reconstruction of functional handgrip in tetraplegic patients, using transfers of the forearm tendons. Authors present two case studies of tendon transfers--the first case introduces reconstruction of fingers and thumb extension--the second case introduces reconstruction of fingers and thumb flexion. The two case studies explain basic principles of tendon transfers and assessment criterions. The aim of this study is to point out the possibility to create functional unit from a plegic hand by surgical intervention, and to improve significantly quality of patients' lives.

Adult↗

PubMed2003

[Treatment of deep chondral defects of the knee using autologous chondrocytes cultured on a support--results after one year].

PURPOSE OF THE STUDY: The treatment of deep chondral defects is one of the key issues in current orthopedics and traumatology. We developed a new technique that greatly improved the outcome of treatment in young active patients. The method is based on transplantation of in vitro cultured autologous chondrocytes carried on the fibrin glue Tissucol. MATERIAL: In the years 2000 to 2002, 19 patients with deep chondral defects were treated by chondrocyte transplantation with the use of Tissucol. At 1 year, 14 defects (average size, 4.31 cm2; range, 2.0 to 10.0 cm2) in 12 patients were evaluated. The defects were localized on the weight-bearing areas of the femoral condyle, tibial plateau and femoropatellar joint in 10, one and three patients, respectively. METHODS: The Lysholm knee score and IKDC subjective score were used for outcome evaluation. Second-look arthroscopy and repair assessment, on the basis of ICRS, were carried out in four patients. RESULTS: The patients were examined at 5 and 12 months after surgery. The average value of the Lysholm knee score before surgery was 45.6 points and those at 5 and 12 months after surgery were 72.0 points and 81.5 points, respectively. Good or excellent outcomes were achieved in seven patients. The average preoperative IKDC subjective score was 39.0 points and the postoperative values were 60.0 and 71.2 points at 5 and 12 months, respectively. Second-look arthroscopy was performed in four patients at 3 to 5 months after the transplantation. A very good, complete healing of the graft was observed in two patients and partial chondrograft degeneration (30% graft area) was seen in two patients. The graft surfaces were evaluated according to the cartilage repair assessments system (ICSR-cartilage score) and the average value obtained was 8.5 points, i.e., almost a normal graft surface. During the second-look arthroscopy, samples for examination by light and electron microscopy were collected. In the healing defects, they showed the presence of hyaline-like cartilage characterized by typical spherical chondrocytes, extracellular collagenous filaments and formation of typical isogenetic cell groups. In the regions of graft degeneration (fissuration), neovascularization of the issue with the presence of fibroblast-like cells was recorded. DISCUSSION: Excellent and very good outcomes were observed in 58% of our patients. Similar studies reported excellent and good results in 80 to 85% of the patients. On comparison, our group included more serious cases with the high presence of severe concomitant injuries, which influenced the final outcome. However, improvement was achieved in all 12 evaluated patients. CONCLUSIONS: The method described is effective for treating deep chondral knee injuries and can be recommended for use in clinical practice.

Adult↗

PubMed2002

[Post-traumatic corrective osteotomy of the distal radius with a new plate].

PURPOSE OF THE STUDY: Mal-union of distal radius fractures cause functional limitation and progressive degenerative changes of the wrist. The authors evaluate both radiograph and functional outcomes in a group of patients with a post-traumatic deformation of the distal radius treated by corrective osteotomy and fixation by a newly developed T-plate. MATERIAL: A retrospective evaluation covered a group of 13 patients of the average age of 51 years (range, 35-60 years) operated on in 2001 for post-trauma symptomatic mal-union of the distal radius of the Colles type. The group included only patients in which a new implant was used. The time interval between the primary fracture and corrective osteotomy was on average 11 months. METHODS: Corrective osteotomy for Colles deformations was performed in all patients from the dorsal approach with the application of a cortico-cancellous bone graft. Stabilisation was performed by the mentioned plate. Radiograph and functional outcomes were evaluated statistically. RESULTS: The radiographic evaluation proved the restoration of the normal anatomic relationship between the distal radius and ulna as well as statistically significant improvement of the function of the hand as concerns the range of motion and muscular strength Except for one patient, all involved evaluated the outcome as a subjective improvement. DISCUSSION: Corrective osteotomy of the distal radius is a standard surgery performed routinely by plate fixation with the application of a cortico-cancellous bone graft. Despite a perfect coverage of the issues relating to potential consequences resulting from non-anatomic position of the articular surface of the distal radius, this surgery was not very frequent in the past. Nevertheless, recently, there is a growing number of works in the literature dealing with corrective osteotomies for mal-union of the distal radius after fractures not only for the Colles but also Smith type. CONCLUSIONS: Treatment of deformation of the distal radius is a rewarding procedure which brings the patients a significant improvement of the function of the hand. The implant used by the authors proved useful for a plate fixation on the distal radius.

Adult↗

PubMed2001

[Carcinoma of the lower half of the rectum].

Authors analyze the group of patients surgically treated for rectal carcinoma during ten-years long period. While the surgical tactic in upper part of the rectum is solved by the resection with straight anastomosis, in carcinomas of lower part of the rectum there is an open question there, to use the deep pelvic anastomosis after radical resection or to perform the rectal extirpation with saving of sphincters and using the coloanal anastomosis. The necessary requirement is complex preoperative examination of the tumor and of pelvic fundus physiology. For application of coloanal anastomosis the rigid indications are determined. Authors used this method in 107 patients of the monitored group. Early and delayed complications of these interventions are analysed, indication for temporary stomy and application of pouchs. In the group of patients with coloanal anastomosis no local recurrence was noted, in the group with deep pelvic anastomosis the locoregional anastomosis was found in 8% of patients.

Anastomosis, Surgical↗

PubMedDate not supplied

Treatment of deep cartilage defects of the knee using autologous chondrograft transplantation and by abrasive techniques--a randomized controlled study.

AIM OF THE STUDY: To compare outcomes of surgical treatment of deep cartilage defects of the knee in a group of patients treated by autologous chondrograft transplantation versus patients treated by abrasive techniques. MATERIALS AND METHODS: An original method of chondrograft preparation based on cultivated autologous chondrocytes in a three-dimensional carrier - fibrin glue (Tissucol, Baxter, Austria) has been described. Preclinical tests in human cadavres and porcine models have established the possibility of chondrograft use in humans. Of the 50 patients included in the study, 25 patients (50%) underwent autologous chondrograft transplantation (group I) and 25 patients (50%) were treated using abrasive techniques according to Johnson (group II). These two groups were similar with respect to age, size of defect, depth and localization, and presence of concomitant knee injuries. The Lysholm knee and IKDC (International Knee Documentation Committee) subjective scores were used to evaluate the results. RESULTS: The preoperative value of the Lysholm knee score for patients in group I was 47.60 points; 5 months after surgery 77.20 points; and 12 months after surgery 86.48 points. The values for the Lysholm knee score for patients in group II preoperatively, 5 months postop, and 12 months postop were 52.60, 69.20, and 74.48 respectively. Results 12 months after surgery were significantly better in group I as compared to group II (p < 0.001). The preoperative value of the IKDC subjective score in group I was 41.28 points; 5 months after surgery 67.00 points; and 12 months after surgery 76.48 points. The values for the IKDC subjective score in group II preoperatively, 5 months postop, and 12 months postop were 45.00, 62.28, and 68.08 respectively. Results 12 months after surgery were significantly better in group I when compared to group II (p < 0.05). CONCLUSIONS: The results obtained in this study have confirmed the better outcome in patients treated with autologous chondrograft transplantation. This original method was found to be just as effective as abrasive techniques. We recommend its use in clinical practice.

Adolescent↗