Endovascular Procedures ; Humans ; Ischemia ; surgery ; Knee ; blood supply

OBJECTIVETo investigate the blood vascular distribution of supra-genicular flap and to apply the retrograded supra-genicular flap for reconstructive surgery.

METHODSEight fresh adult cadavers with 16 lower extremities were used for the study, by means of injecting the media of red latex into the main artery of the limb. The skin vascular architecture on the lower two thirds of each thigh was observed to decide the blood supply of this region. Fifty-two patients were also used to treat the scarring contraction of the popiteal fossa with 56 of the retrograded supra-genicular flaps, and long-term follow-ups were carried out.

RESULTSFrom this study, it was found that there are rich blood vascular networks of the skin above the knee anteriorally, laterally and medially. The abundant vascular anastomoses were also found around the knee. The clinical application of the retrograded supra-genicular flap was successfully carried out for the treatment of the scarring contraction of the popiteal fossa. All of the flaps were survived well. Long-term results were satisfactory.

CONCLUSIONThe above mentioned flap is a safe and effective flap for repair the defect of the popiteal fossa.

Adolescent ; Adult ; Burns ; complications ; Cadaver ; Child ; Child, Preschool ; Cicatrix ; etiology ; surgery ; Humans ; Knee ; blood supply ; Male ; Surgery, Plastic ; methods ; Surgical Flaps ; blood supply ; Thigh ; blood supply ; Treatment Outcome

Angioplasty, Balloon ; Blood Vessel Prosthesis Implantation ; Humans ; Ischemia ; surgery ; Knee ; blood supply ; surgery ; Treatment Outcome

Adult ; Female ; Humans ; Knee Injuries ; complications ; diagnosis ; Knee Joint ; blood supply ; surgery ; Male ; Middle Aged ; Popliteal Vein ; injuries ; surgery

Total knee arthroplasty (TKA) is now a standard treatment for serious osteoarthritis all over the world. Although it is a standard treatment, it has many complications, among which deep vein thrombosis (DVT) is the exclusive blood vessel complication that has been reported. However, we found a new blood vessel complication of TKA in this study, which is spontaneous arteriorrhexis in the affected lower limb.
Arthroplasty, Replacement, Knee ; Humans ; Leg ; blood supply ; Male ; Middle Aged ; Muscle, Skeletal ; blood supply ; Peripheral Vascular Diseases ; etiology ; Postoperative Complications ; Rupture, Spontaneous

We describe a case of 43-year-old man who had a pseudoaneurysm of the medial superior genicular artery after arthroscopic partial meniscectomy with standard anterolateral and anteromedial portals. Pseudoaneurysm of the medial superior genicular artery has been reported at the previous superomedial portal site after arthroscopy. Described herein is a unique case that involved the medial superior genicular artery at the previous anteromedial portal site after arthroscopy. The pseudoaneurysm was successfully treated with transcatheter embolization.
Adult ; Aneurysm, False/*etiology ; Arteries ; Arthroscopy/*adverse effects/methods ; Humans ; Knee/*blood supply ; Male ; Menisci, Tibial/*surgery

OBJECTIVETo discuss clinical results of the lateral superior genicular artery perforator iliotibial band flap for the treatment of scar contracture of popliteal fossa.

METHODSForm January 1999 to December 2011, 11 patients with scar contraction of popliteal fossa were treated with the lateral superior genicular artery perforator iliotibial band flap. Among the patients, 7 patients were male and 4 patients were female,ranging in age from 24 to 58 years old,with an average of 33 years old. The operation time ranged from 3 months to 1 year after trauma. Eight patients had injuries in the right side and 3 patients had the injuries in the left. Five patients had the injuries caused by traffic,3 patients had the injuries caused by hot compression and other 3 patients suffered from burns. The flap area ranged from 7.0 cm x 4.0 cm to 20.0 cm x 8.0 cm.

RESULTSAll the flaps survived. Three patients had epidermis necrosis. After 5 months to 2 years follow-up period,the knee function recovered,the flap shape was favorable and the skin firmness was moderated.

CONCLUSIONThe lateral superior genicular artery perforator iliotibial band flap is a practical, simple and an ideal donor in the reconstruction of popliteal fossa scar contracture.

Adult ; Cicatrix ; surgery ; Contracture ; surgery ; Female ; Humans ; Knee Joint ; surgery ; Male ; Middle Aged ; Perforator Flap ; blood supply

OBJECTIVETo investigate the incidence rate of anterior knee pain after total knee arthroplasty (TKA) and identify the related factors.

METHODSThis prospective, double-blind clinical trial involved a total of 128 patients scheduled for primary ipsilateral cemented three-component TKA for osteoarthrosis. The patients were randomized into two groups to receive operations for TKA with patellar resurfacing (experimental group) or not (control). The incidence of anterior knee pain was observed in these patients and the factor affecting the occurrence of anterior knee pain and knee was analyzed.

RESULTSThe patients were followed up for a mean of 16.5 months (range 6~24 months). The incidence rate of anterior knee pain was 10.9% (7/64) in the experimental group, showing no significant difference from the rate of 14.1% (9/64) in the control group. But the 52 patients with varus or valgus knee showed a significantly higher incidence rate of anterior knee pain (21.2%, 11/52).

CONCLUSIONTKA with patellar resurfacing can not decrease the incidence of anterior knee pain, and varus or valgus before the operation is associated with a higher risk of anterior knee pain.

Aged ; Arthroplasty, Replacement, Knee ; adverse effects ; methods ; China ; epidemiology ; Denervation ; methods ; Double-Blind Method ; Female ; Humans ; Knee Joint ; blood supply ; Male ; Middle Aged ; Osteoarthritis, Knee ; surgery ; Patella ; surgery ; Patellofemoral Pain Syndrome ; epidemiology ; etiology ; physiopathology ; Risk Factors

Arthroscopic meniscectomy of the knee is generally a safe and effective procedure with a low rate of vascular complications. We report here on a unique case of a 55-year-old man with a lateral inferior genicular artery pseudoaneurysm and a concomitant arteriovenous fistula that developed after arthroscopic meniscectomy; this was successfully treated with selective angiographic embolization. This case illustrates the effectiveness of an endovascular approach as a minimally invasive treatment for this uncommon complication that occurs after an arthroscopic procedure.
Aneurysm, False/*etiology/*therapy ; Angiography ; Arteriovenous Fistula/*etiology/*therapy ; Arthroscopy/*adverse effects ; Embolization, Therapeutic/*methods ; Humans ; Knee Joint/radiography/surgery ; Leg/*blood supply ; Male ; Middle Aged

OBJECTIVETo evaluate the effects of primary deep venous valvular incompetence of lower limb (PDVI) to the occurrence of deep vein thrombosis (DVT) after human total knee replacement (TKR).

METHODSOne hundred and twenty-six patients who planed to receive TKR were examined by color doppler flow imaging (CDFI). The patients were divided into 2 groups depending on whether they were found backstreaming in femoral vein or not. When the refluxing time > 1 s, the patients were included in PDVI group; When the refluxing time < or = 1 s, the patients were included in without PDVI group. In 7 d after operation all the patients were re-examined by CDFI to find if there was DVT. The results were tested by chi2 statistical analysis.

RESULTSAmong the 126 patients, 54 had PDVI, and 72 without PDVI. Fifty patients had DVT, total incidence rate 39.7% (50/126). In PDVI group 33 patients had DVT (61.1%, 33/54); In without PDVI group 17 patients had DVT (23.6%, 17/72), which was lower than PDVI group (chi2 = 21.227, P < 0.05).

CONCLUSIONSPDVI may be a risk for occurrence of DVT after TKR.

Aged ; Arthroplasty, Replacement, Knee ; Female ; Humans ; Lower Extremity ; blood supply ; Male ; Middle Aged ; Postoperative Complications ; etiology ; Venous Insufficiency ; complications ; Venous Thrombosis ; etiology