Biomedical subjects

Man-Yi Wang

Publications and source records attributed to Man-Yi Wang.

3 recordsLinked to original sources

PubMed2004

[Percutaneous pinning for the treatment of proximal humerus fractures].

OBJECTIVE: The indication, surgical techniques and results had been discussed through clinical analysis of percutaneous pinning for the treatment of proximal humerus fractures. METHODS: Forty-nine patients with 49 shoulders treated with percutaneous pinning had been reviewed with a mean follow-up period of 16.9 months. All were acute fractures, with a mean age of 40.4 years. There were 39 2-part surgical neck fractures, 6 impacted 2-part greater tuberosity fractures and 4 valgus-impaction 4-part fractures. SST (Simple Shoulder Test) questionnaire, ASES (American Shoulder & Elbow Surgeon) score, Constant-Murley score and UCLA score had been adopted for final evaluation at the latest follow-up. RESULTS: The mean ASES score was 91.4, the mean VAS score was 1.7, the mean forward flexion was 146.7 degrees, external rotation 39.6 degrees, internal rotation at T(8)-T(9) level; the mean Constant-Murley score was 88.2; the mean UCLA score was 31.2; the mean number of questions for "yes" in SST questionnaire was 10.1. All fractures healed with a mean period of 8.8 weeks. No patient had been found for any evidence of humeral head necrosis at the latest follow-up The total satisfaction rate for pain relieve was 95.9% (47/49), and for functional recovery was 91.8% (45/49). CONCLUSIONS: Most 2-part surgical neck fractures, impacted 2-part greater tuberosity fractures and 4-part valgus-impaction fractures are good indications for percutaneous pinning. With appropriate and intense rehabilitation, satisfactory results can be expected in percutaneous pinning for the treatment of certain types of proximal humerus fractures.

Adolescent↗

PubMed2004

[Hinged external fixator in elbow trauma management].

OBJECTIVE: To introduce a new way of treatment for elbow stiffness and instability. METHODS: 30 cases of elbow trauma were treated with mobile hinged Orthofix elbow fixator, 26 of them were followed up. There are 15 male patients and 11 female patients. The average age is 32.6 years old. The 26 injured elbows involved 12 cases on left side and 14 cases on right side; Sixteen cases on the dominant side and 10 cases on the non-dominant side. Sixteen cases had elbow stiffness, 5 cases had acute radial head fracture and posterior dislocation of the elbow, 3 of cases had Monteggia's fracture dislocation, and 2 cases had neglected posterior dislocation of the elbow. RESULTS: The average follow up time was 6 months (3 - 12 month). The mean time of fixation with fixator was 8.5 weeks (6 - 11 weeks). The mean ROM of the 16 cases of elbow stiffness was (37.5 +/- 0.8) degrees before operation, and (96.5 +/- 0.6) degrees operation, with a significant difference (P < 0.05). The mean Mayo elbow score was (69.5 +/- 1.7) before operation, compared with (82.8 +/- 1.6) after operation, with a significant difference (< 0.05). For the other 10 cases (5 cases with acute radial head fracture and posterior dislocation of the elbow, 3 cases with Monteggia's fracture dislocation, 2 cases with neglected posterior dislocation of the elbow), the average ROM of the elbow flexion-extension was 95 degrees (65 degrees - 150 degrees ); The average range of flexion was 117 degrees; the average loss of extension was 22 degrees; the average pronation was 76 degrees (20 degrees - 90 degrees ), the average supination was 75 degrees (15 degrees - 90 degrees ). Nine of the cases achieved anatomic reduction and proved by X-ray. The mean Mayo elbow score was 84 (49 - 96). Three cases were rated excellent, 4 good, 2 fair and 1 poor. The rate of excellent and good was 70% (7/10). Nine cases had no pain or mild pain, and did not need analgesic. Eight cases returned to their former work, 5 of the cases had complications. CONCLUSIONS: The mobile hinged elbow external fixator have following advantages: (1) distraction of the articular space and enhance fracture healing; (2) allow early movement of the elbow during healing; (3) provide stable environment for the healing after arthrolysis and reconstruction. Mobile hinged elbow external fixator can achieve successful result in the treatment of elbow stiffness or unstable fracture dislocation of elbow.

Adolescent↗

PubMed2004

[Research on the expression of some immune markers after reamed and unreamed femoral nailing].

OBJECTIVE: To investigate on the expression of some cytokines and other immunity makers right after the operation, the effect of femoral nailing on systemic immunity and sought to differentiate any differences between reamed and unreamed IMN. METHODS: Fifty-nine patients presenting with acute femoral fractured including 55 male and 4 female, 32.1 years old on average, are divided into 2 group depend on ISS. All patients were treated by close reduction and intramedullary nail for fixation. In group 1, 23 reamed and 23 unreamed; in group 2, 7 reamed and 6 unreamed. Venous blood samples were taken at 24 hr pre-operationally, and 1 hr, 24 hr, 48 hr post operationally. Serum TNF, IL-6, IL-8, IL-10 were measured by enzyme-linked immunosorbent assay. CRP was measured by protein assay apparatus. We also collected venous samples from 22 healthy uninjured volunteers, which formed control group. RESULTS: All immune marks were elevated post operation, for IL-6, IL-8, IL-10, this elevation began at 1 hr after operation, reached to the peak at 24 hr, and then down but never to the normal at 48 hr. For TNF and CRP, the level were raised at 24 hr, and then fallen at 48 hr. All mediators were raised significantly above the control group (< 0.05). Between reamed and unreamed patients both in group 1 and group 2, Although there was a trend towards higher levels of TNF, IL-6, IL-8, IL-10 and CRP in RFN than in the URFN, no significant difference was found except that there was a greater release of serum IL-10 in RFN than in URFN at 24 hr post operation (P = 0.047). Two patients have become SIRS, but the markers have shown no significant difference with those that have no SIRS symptoms. CONCLUSIONS: To the patient not injured severely, using IMN for treatment will make the inflammatory mediators re-released on higher level than normal, which will be balanced by immunity itself soon, so IMN won't make any damage severely. And no significant difference were found between reamed and unreamed nail. But the changing of IL-10 show us that after IMN, especially the reamed nailing, the level of anti-inflammatory mediators will show the difference more apparently between RFN and URFN while the patient got injured more severely. Under this condition, the RFN will aggravate the restrain of immunity.

Adult↗