正常人体位与股静脉回流的关系30例彩超检查分析

目的　探讨体位与下肢股静脉回流的关系。方法　彩色多谱勒检测正常成人 ,平卧、侧卧和坐位股静脉回流速度。结果　正常人相同体位时两下肢股静脉回流速度无显著差异 (p >0 .0 5 ) ,但同一肢体不同体位股静脉回流速度差异非常显著 (p <0 .0 0 1)。结论　体位对股静脉回流具有重要影响。有下肢深静脉血栓形成因素病人 ,卧床体位以平卧最好 ,缩短侧卧时间 ,避免坐位     

大肠癌患者手术前后外周血NK细胞和TNF的变化及意义

目的　通过检测外周血自然杀伤细胞 (naturalkillercell,NKcell)数和肿瘤坏死因子(tumornecrosisfactor ,TNF)水平来探讨其在大肠癌中的表达机制及临床意义。方法　应用碱性磷酸酶-抗碱性磷酸酶 (APAAP)法和放射免疫法 (RIA)分别检测 4 2例大肠癌患者血清NK细胞数和TNF水平 ,并与大肠良性疾病患者及正常人作对比分析。结果　 (1)大肠癌肿组外周血NK细胞数较良性疾病组及正常对照组显著降低 (P <0 .0 1) ,TNF水平显著升高 (P <0 .0 1) ,良性疾病组与正常对照组相比 ,差异无意义 ;(2 )根治性肿瘤切除术后两周 ,外周血NK细胞升高 ,TNF水平下降 ,与术前相比 ,有显著性差异 ;非根治性肿瘤切除术者与术前相比无差异 ;(3)有淋巴结或远处转移者外周血NK细胞数较非转移者显著降低 (P <0 .0 1) ,而TNF水平显著升高 (P <0 .0 1) ;(4)外周血NK细胞数与TNF水平在大肠癌患者中呈显著负相关 (P <0 .0 5 )。结论　检测外周血NK细胞数和TNF水平可评估大肠癌患者细胞免疫功能 ,对判断术后疗效及预后有较大价值。     

精浆转铁蛋白含量与不育的关系

为探讨精浆转铁蛋白 (Tf)含量与男性生育力的关系 ,采用速率散射比浊法 ,对 2 0例正常生育男性和 96例不育男性精浆Tf含量进行了测定 ,同时做精子密度、精子活动率及精子顶体完整率 (PIA)分析。结果表明少精子组 (精子密度 <2 0× 10 6/ml)精浆Tf含量较生育组与正常密度组 (精子密度≥ 2 0× 10 6/ml)显著低 (P <0 .0 1) ;精浆Tf含量与精子活动率无关 ;正常精子密度的不育患者精子PIA <80 %组精浆Tf的含量显著低于PIA≥ 80 %组(P <0 .0 1)。提示精浆Tf含量的下降与男性生育力有关     

前列腺增生经尿道汽化切割与电切术的疗效比较

目的 :比较经尿道前列腺汽化切割 (TUVP)与电切术 (TURP)治疗良性前列腺增生 (BPH)病人的疗效。　方法 :2 0 6例BPH病人 (术前估计前列腺重量≤ 6 0 g)被随机分成TUVP(97例 )和TURP(10 9例 ) 2组 ,对病人进行为期 12～ 34(平均 2 0 )个月的随访。　结果 :2组术后第 12、2 4个月国际前列腺症状评分 (I PSS)均较术前下降 (P<0 .0 1) ,膀胱残余尿 (PVR)均较术前减少 (P <0 .0 1) ,最大尿流率 (Qmax)均较术前升高 (P <0 .0 1)。　结论 :TUVP和TURP对增生≤ 6 0g的BPH病人均有良好的治疗作用。TUVP较TURP能缩短手术时间和术后置管时间     

乌司他丁对门脉高压症出血病人肝功能的保护作用

目的　探讨门脉高压症出血病人肝功能变化情况 ,同时评价应用乌司他丁 (Ulinastatin ,UTI)治疗的效果。方法　将 4 6例肝硬化门脉高压症出血病人分为两组 :Ⅰ组 (n =2 2 )为一般治疗组 ,Ⅱ组 (n =2 4 )为UTI治疗组 ,分别检测Ⅰ、Ⅱ组出血后 1,2 ,4 ,7,10 ,14d血ET变化情况 ,并检测1,7,14d的肝功能。另选肝硬化门脉高压症未出血病人 (n =2 0 ) ,检测血浆ET ,作为对照组。结果　出血后 7,14d ,Ⅰ、Ⅱ组总胆红素 (TBIL)均呈先升高后下降 ,但Ⅱ组较Ⅰ组下降快 (分别P <0 0 5 ,P <0 0 1)。ALT、AST亦呈先升高后下降 ,但于出血后 14日Ⅱ组较Ⅰ组下降快 (P <0 0 5 )。Ⅰ、Ⅱ组出血后 1d血ET浓度较对照组显著升高 (P <0 0 1) ,随后逐步下降。Ⅱ组ET下降较Ⅰ组快 ,于出血后 2d(P <0 0 5 )、4d (P <0 0 1)、7d(P <0 0 5 )有显著差异。出血后 1dⅠ、Ⅱ组ET浓度与TBIL呈正相关 (r=0 734,P <0 0 1) ;Ⅰ、Ⅱ组血ET下降指数与TBIL增高指数呈负相关 (r =- 0 4 86 ,P <0 0 5 )。结论　肝硬化门脉高压症大出血后应用UTI治疗可抑制TBIL、ALT、AST、ET等的升高 ,起到保护肝脏功能的作用。     

参附注射液在普外科围手术期应用的临床观察

目的　观察参附注射液 (SF)对普外科围手术期患者康复作用的影响。方法　 10 0例病人随机分为对照组 5 0例和参附注射液组 (SF组 ) 5 0例。SF组于手术当天至术后 7d ,在常规治疗的基础上 ,每天加用 5 0ml参附注射液滴注 ;对照组仅行常规治疗。观察病人的症状、切口愈合情况、血常规、凝血功能、肝功能、组织损伤修复因子。结果　SF组病人的平均肛门排气时间较对照组显著缩短(P <0 .0 5 )。手术前后SF组与对照组比较 ,血常规、凝血功能及肝功能无显著差异。而组织损伤修复因子中 ,术后两组病例SOD明显降低 ,SF组降幅小于对照组 (P <0 .0 5 ) ;对照组术后MDA明显升高 (P <0 .0 5 ) ,而SF组MDA未见升高 (P >0 .0 5 )。手术前后两组TNF无明显差异 (P >0 .0 5 )。结论　参附注射液可改善普外科围手术期病人的症状 ,减少组织的损伤 ,加快病人的康复     

类风湿性关节炎患者骨密度及骨代谢生化标志物的变化

目的 通过测定骨密度和骨代谢指标了解类风湿关节炎(RA)患者骨质疏松的发生情况、骨代谢指标的变化及其影响因素。方法 应用双能X线吸收法（DXA)测定110例（男28例,女82例）RA患者和120例（男30例,女90例）正常人腰椎 L1-4和股骨近端骨密度,骨代谢指标血清I型胶原氨基末端肽(NTX - 1)、骨碱性磷酸酶（B-ALP)及相关临床指标。结果 RA组男性、绝经前及绝经后女性各组腰椎骨密度均较对照组减低（P <0. 05),以绝经后女性下降显著（P < 0. 01); RA骨质疏松组患者(26例,23. 6%)股骨颈骨密度值与病程、关节肿胀数、关节压痛数、ESR、CRP、X线分期负相关(P <0. 05),与RF无明显相关性(P >0. 05)。NTX - 1水平在RA患者骨量正常组、骨量减少组、骨质疏松组依次升高,且组间两两比较差异有显著性(P < 0. 05);与骨质疏松组比较,骨量正常组和骨量减少组的ESR、CRP水平显著降低（P < 0. 05),B-ALP显著增加（P < 0.05),而这两组间的B-ALP、ESR、CRP水平差异无显著性（P >0.05)。RA患者NTX-1与CRP水平呈正相关（P <0.05)。 结论 RA继发骨质疏松十分常见,骨代谢指标NTX - 1及B-ALP测定可作为早期活动性指标。     

腹腔镜直肠癌根治术与开腹直肠癌根治术的临床对比

目的　探讨应用腹腔镜技术行直肠癌根治术的可行性及近期临床疗效。方法　选择2 0 0 3年 2月至 2 0 0 4年 8月我科行腹腔镜直肠癌根治术 2 4例 (Dixon手术 15例、Miles手术 9例 ) ,开腹直肠癌根治术患者 30例 (Dixon手术 2 2例、Miles手术 8例 ) ,对照研究两组病人手术及术后情况。结果　腹腔镜组与开腹组的平均手术时间为 2 0 1.4 6min和 15 6 .33min ,有显著差异 (P <0 .0 1) ,但随着例数的增加腹腔镜手术的时间呈明显下降趋势 ,后 12例病人的平均手术时间为 172 .92min ,与开腹组比较无显著差异 (P >0 .0 5 )。腹腔镜组术中失血量明显少于开腹组 (12 9.17mlvs393.33ml,P <0 .0 1) ,清除的淋巴结数量无显著差异 (11.75枚vs13.2 7枚 ,P >0 .0 5 )。腹腔镜组术后胃肠功能和排尿功能恢复时间明显早于开腹组 (排气、进流食时间 2 .4 6dvs3.6 7d ,P <0 .0 1;进固体饮食时间 3.5 4dvs4 .70d ,P <0 .0 1;留置导尿时间 4 .17dvs5 .97d ,P <0 .0 1)。腹腔镜组住院时间明显短于开腹组(9.5 4dvs12 .97d ,P <0 .0 1) ,住院费用仍明显高于开腹组 (2 .2 7万元vs1.92万元 ,P <0 .0 5 )。结论　应用腹腔镜技术行直肠癌根治术安全可行 ,切除范围能够达到开腹手术的水平 ,且具有创伤小、出血少、术后恢复快等特点 ,极具     

不同血滤方式对重症急性胰腺炎病人血浆细胞因子的影响

目的　比较单次短时血滤 (SSVVH )和间断短时血滤 (ISVVH )对重症急性胰腺炎(SAP)病人血浆细胞因子的影响。方法　对符合血滤 (HF)指征的 5 8例SAP病人分别行SSVVH(SS组 )或ISVVH (IS组 )治疗 17、2 1例 ,2 0例未行HF者作对照 (N组 )。观察各时点TNF α、IL 6、IL 8、IL 1ra、IL 2、IL 10的血浆水平 ,以APACHEII评分、液体负平衡出现时间衡量病情变化。结果　HF组的APACHEII评分在入院第 1天即显著下降 ,第 4天起显著低于N组 ,且IS组较SS组更低 ,P均 <0 .0 5 ;HF组血浆TNF α、IL 6水平在入院第 4、10天较N组显著降低 ,且IS组较SS组更低 ,P 均 <0 .0 5 ;入院第 10天 ,HF组IL 2和IL 10的水平及促抗炎因子比值明显高于N组(P <0 .0 5 )。N组、SS组和IS组分别有 1、1、0例中转手术和 3、2、0例死亡 ,出现液体负平衡时间分别为入院 ( 5 .9± 1.8)d、( 3 .5± 2 .1)d和 ( 2 .7± 1.4)d。结论　ISVVH较SSVVH在降低SAP病人血浆TNF α、IL 6、IL 8水平 ,升高IL 2、IL 10水平 ,纠正促抗炎细胞因子失衡方面作用更强 ,这与病情的变化和疗效相吻合。     

出口梗阻性便秘对大鼠血浆ET及血清TNF-α含量的影响

目的 :研究出口梗阻性便秘对大鼠血浆内毒素 (ET)和血清肿瘤坏死因子 - α(TNF- α)含量的影响。方法 :将 30只 SD大鼠随机分为 3组 ,即空白对照组、模型组和解扎组 ,采用直肠部分缩窄法建立出口梗阻性便秘的动物模型 ,通过体外拆线解除梗阻 ,采用动态浊度法检测血浆 ET含量 ,采用放射免疫分析法检测血清 TNF- α含量。结果 :模型组大鼠血浆 ET水平较正常组大鼠显著增高 (P <0 .0 1 ) ,解扎组大鼠血浆 ET水平较模型组显著降低 (P <0 .0 1 )。同时 ,模型组大鼠血清 TNF- α含量较正常组显著升高 (P <0 .0 1 ) ,解扎组大鼠血清 TNF- α含量较模型组显著降低 (P <0 .0 5 )。结论 :出口梗阻性便秘可以通过ET的释放刺激以 TNF- α为代表的各种炎症因子的释放 ,引起全身炎症反应 ,进而导致机体组织细胞的损伤     

Attentional requirements of walking in spinal cord injured patients compared to normal subjects.

STUDY DESIGN: Recent developments in the field of rehabilitation and the increase in the number of incomplete spinal cord injured subjects (SCI) emphasize the importance of studying the walking behavior of that population. OBJECTIVES: Attentional requirements were measured in spinal cord injured subjects during sitting, standing and walking and compared to a healthy group for the same tasks and walking at a similar speed. METHODS: Auditory stimuli and verbal responses were used to measure the attentional demands in the three experimental tasks. RESULTS: For both static tasks, SCI subjects were faster than the normal group. During walking at preferred speed, the normal group is significantly faster than the SCI subjects are. No difference was found between the two groups when the normal group walked at a similar speed. However, SCI subjects need to allocate significantly more attentional resource to walking than the normal. SCI patients also showed slower reaction times when the stimuli were presented during the single-support phase of walking. Kinematics analysis revealed that SCI subjects produced longer cycle duration than the normal group even when they walked at a match speed. Although variability in the cycle duration and the cycle length were comparable between the two groups, when the normal group walked at a slower speed, they were significantly more variable than the SCI subjects. CONCLUSION: Walking for SCI patients is cognitively challenging. Walking speed seems to be an important factor associated with attentional demands.     

老年ED病人阴茎背动脉横切面积和血流量研究

目的 :探讨老年人血流动力学因素在勃起功能障碍 (ED)中的作用。　方法 :随机抽取 40例勃起功能正常和 5 9例老年ED病人 ,先以脉冲超声波多普勒探测阴茎背动脉横切面图形和平均流速时间积分 ,再用微机图像扫描仪自动测量图形面积 ,最后计算出阴茎背动脉每分血流量。　结果 :勃起功能正常不同年龄组间阴茎背动脉横切面积和血流量均无显著性差异 (P >0 0 5 ) ;勃起功能正常与ED相同年龄两组间阴茎背动脉横切面积有显著性差异 (P <0 0 5 ) ,血流量有非常显著性差异 (P <0 0 1)。　结论 :血管横切面积缩小及血流量降低在老年ED流行病学中起重要作用。     

Comparison of different microprocessor controlled knee joints on the energy consumption during walking in trans-femoral amputees: intelligent knee prosthesis (IP) versus C-leg

The purpose of this study was to investigate the characteristic differences between the IP and C-Leg by making a comparative study of energy consumption and walking speeds in trans-femoral amputees. The subjects consisted of four persons with traumatic trans-femoral amputations aged 17 - 33 years who had been using the IP and were active in society. Fourteen able-bodied persons served as controls. First the energy consumption at walking speeds of 30, 50, 70, and 90 m/min was measured when using the IP. Then the knee joint was switched to the C-Leg. The same energy consumption measurement was taken once the subjects were accustomed to using the C-Leg. The most metabolically efficient walking speed was also determined. At a walking speed of 30 m/min using the IP and C-Leg, the oxygen rate (ml/kg/ min) was, on average, 42.5% and 33.3% higher (P< 0.05) than for the able-bodied group. At 50 m/min, the equivalent figures were 56.6% and 49.5% (P< 0.05), while at 70 m/min the figures were 57.8% and 51.2% (P<0.05), and at 90m/min the figures were 61.9% and 55.2% (P<0.05%). Comparing the oxygen rates for the subjects using the IP and C-Leg at walking speeds of 30 m/min and 90 m/min it was found that subjects who used C-Leg walked somewhat more efficiently than those who used IP. However, there was no significant difference between the two types at each walking speed. It was also determined that the most energy-efficient walking speed for subjects using the IP and C-Leg was the same as for the controls. Although the subjects in this study walked with comparable speed and efficiency whether they used the IP or C-Leg, the subjects' energy consumption while walking with the IP and C-Leg at normal speeds were much lower than previously reported. This study suggested that the microprocessor controlled knee joints appeared to be valid alternative for improving walking performance of trans-femoral amputees.     

Accuracy of the retinal nerve fiber layer measurements by stratus optical coherence tomography for perimetric glaucoma

Objective: To calculate the sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy of measurements of the retinal nerve fiber layer using the Stratus optical coherence tomography in glaucoma subjects with visual field defects on achromatic perimetry as the gold standard. Study Design: Comparative cross-sectional. Place and Duration of Study: Outdoor clinic of Layton Rehmatulla Benevolent Trust Hospital (LRBT), Lahore, from August 2007 to January 2008. Methodology: Fifty normal subjects and 50 glaucoma patients were selected from outdoor clinic of LRBT. Retinal nerve fiber layer thickness (RNFL) of all the subjects were measured by Stratus optical coherence tomography (OCT). Visual field defects on achromatic perimetry was used as the gold standard. Results: The sensitivity and specificity of retinal nerve fiber layer measurement for perimetric glaucoma using the OCT were 82% and 96% respectively. The positive predictive value, negative predictive value and diagnostic accuracy were 95%, 84% and 89% respectively. Conclusion: There is a high sensitivity and specificity of RNFL measurements using the new Stratus OCT for the diagnosis of perimetric glaucoma.     

直肠癌患者手术前血钾浓度变化的分析

目的 观察直肠癌患者入院至手术前血钾浓度的变化,为预防直肠癌患者术中及术后血钾紊乱提供临床证据.方法 分3个时间点监测40例直肠癌患者自入院至手术之前的血钾浓度变化,即入院第一天、服用泻药前、手术当天早晨,并根据患者年龄(低龄组、中龄组、高龄组)、性别(男性组、女性组)、饮食状况(饮食正常组、饮食稍下降组、饮食严重下降组)、病程(长病程组、中病程组、短病程组)进行分组,观察各时间点之间及各组之间血钾浓度,使用SPSS1 3.0统计软件进行统计分析.结果 所有患者血钾浓度平均值入院第一天为(4.09 ±0.62) mmol/L,服用泻药前为(3.83±0.46) mmoL/L,较入院第一天有所下降,差异有统计学意义(P＜0.01),手术当天早晨为(3.36±0.40) mmol/L,与前两次均有统计学差异(P＜0.o1);不同性别之间各时间点血钾浓度差异无统学意义(P＞0.05);不同年龄组除低龄组与高龄组在手术当天早晨血钾浓度差异有统计学意义(P＜0.05)外,其他年龄组在不同时间点之间血钾浓度差异无统计学意义(P＞0.05);不同饮食状况组、不同病程组在各时间点之间差异均有统计学意义(P＜0.01).结论 直肠癌患者手术之前即可能处于低钾血症状态,其原因可能与患者病程长、饮食量下降、年老体弱、入院后饮食结构改变及服用泻药清洁肠道相关.     

全身关节过度活动患者步行时膝关节步态图特征

目的研究全身关节过度活动(GJH)患者平地行走及下坡步行时膝关节步态图特征。 方法招募18～24岁健康大学生志愿者(排除膝关节外伤史等),分为全身关节过度活动组(GJH组,Beighton评分5分,21人)和正常组(49人)。采集性别、身高、体重等信息,使用国际膝关节评分(IKDC)2000、Lysholm评分等问卷调查膝关节功能,测量Beighton评分系统的指标。采用三维运动分析系统测量受试者平地行走和下坡步行时的膝关节运动学参数。 结果屈伸自由度上,平地行走时GJH组和正常组无明显差异,但在下坡步行时,在摆动相GJH组较正常组表现出更大的屈曲角度,最大屈曲角度：(67.40±5.48)°vs (62.27±6.57)°(t＝－2.961,P<0.01)。与正常组相比,在内外旋和前后位移自由度上,无论是平地行走还是下坡行走,GJH组均表现出较大的外旋角度和前向位移,平地支撑相中期12%前后位移：(0.73±0.45)mm vs(0.23±0.27)mm(t ＝－4.713,P<0.001),且在下坡行走时,外旋角度和前向位移,支撑相中期12%前后位移：(0.78±0.62)mm vs (0.20±0.36)mm(Z＝－3.873,P<0.001),增大更明显。 结论GJH患者在下坡步行时表现出更明显的步态参数的变化,以适应功能需求更高的下坡运动,可能是由膝关节周围肌肉来代偿的。针对步态参数的异常,可通过步态再训练及关节稳定性训练,以增强关节过度活动患者膝关节周围肌肉力量,从而增强膝关节的稳定性。     

Quantitative gait analysis of patients with bilateral hip osteoarthritis excluding the influence of walking speed

Background The purpose of this study was to investigate gait characteristics of patients with bilateral hip osteoarthritis (BHO) independent of walking speed. Methods We measured gait parameters in 12 BHO patients during free walking activities and in 12 normal adults during both free walking and slow walking activities using a three-dimensional computerized gait analysis system. Results Patients with BHO had a lower walking speed, step length, and cadence than normal subjects during free walking. When compared with normal subjects walking at a slow speed, the walking speed difference among BHO patients disappeared, although BHO patients retained a relatively high cadence. Kinematic and kinetic factor analysis of BHO patients at free speed compared to normal subjects walking at a slow speed showed a forward-tilted pelvic angle in the BHO patients that dropped to that of the ipsilateral side during the stance phase. The peak extension and abduction angle of the hip and the peak abduction moment of the hip were all low, whereas the peak generation power of the ankle was high in BHO patients. Conclusions Gait characteristics of patients with BHO, independent of walking speed, were as follows: (1) increased cadence and ankle generation power; (2) reduced step width, hip extension, and abduction angle as well as a lower hip abduction moment; (3) maintained forward tilting of the pelvis during gait cycle; and (4) appearance of a dropped pelvis during the stance phase.     

平衡针法治疗膝骨性关节炎的临床疗效观察

目的：观察平衡针法治疗膝骨性关节炎的临床疗效,为临床治疗本病提供更有效的治疗方法。方法：将61例符合纳入标准的观察对象,按首次来诊的先后顺序,用随机数字表法随机分为两组,治疗组31例采用平衡针法针刺,对照组30例采用传统针刺。两组病例均每日治疗1次,6次为1疗程,疗程间间隔3－4d,临床观察2个疗程后进行视觉模拟定级WAS）评定、膝关节症状和体征分级量化,并判定疗效。结果：①在VAS评分方面,两组VAS积分自身前后比较均有显著性差异（P〈0．01）,两组间治疗后比较有显著性差异（P〈0．05）;②在膝关节症状和体征改善方面,两组症状和体征总积分自身前后比较均有显著性差异（P〈0．01）,两组间治疗后比较有显著性差异（P〈0．05）,其中两组间治疗后行走时疼痛、关节肿胀、关节活动度比较有显著性差异（P〈0．05）,晨僵或起床后疼痛、休息时疼痛比较无显著性差异（P〉0．05）;③治疗组总有效率为93．54％,对照组总有效率为83．3％,两组比较有显著性差异（P〈0．05）。结论：①在VAS评分方面,两种疗法均能改善膝关节疼痛,治疗组优于对照组;②在膝关节症状和体征改善方面,两组均能改善膝关节症状和体征,其中治疗组在改善行走时疼痛、关节肿胀、关节活动度方面优于对照组,在晨僵或起床后疼痛、休息时疼痛方面,两组有类似的疗效;③治疗组临床疗效优于对照组,平衡针治疗本病有一定优势。     

绝经后妇女骨质疏松症与骨关节炎的相关性研究

目的探讨绝经后妇女骨质疏松症与骨关节炎的相关性。方法对128例绝经后妇女进行年龄、身高、体重、骨密度（BMD）、血钙（Ca）水平及胰岛素样生长因子（IGF）含量进行测定,观察骨质疏松症患者与骨关节炎患者的各项指标的变化。结果L1-4平均BMD：OP组与OA组、正常组比较,差异均有统计学意义（P〈0．05）;而OA组与正常组比较,差异无统计学意义（P〉0．05）;血Ca水平：OP组与OA组、正常组比较,差异均有统计学意义（P〈0．05）;而OA组与正常组比较,差异无统计学意义（P〉0．05）;IGF含量：OP组、OA组与正常组之间两两比较,差异均有统计学意义（P〈0．05）。结论骨质疏松与骨关节炎患者均有升高的趋势,骨质疏松能够加速骨关节的病变,而骨关节炎也能够加速骨质疏松的进程,二者呈现出相辅相成的正相关关系。     

Gait analysis with reference to chondromalacia patellae

This study analyzed the gait of women exhibiting symptoms of chondromalacia patellae, and compared them with a group of women without chondromalacia symptoms. High speed cinematography was used to film the subjects walking on a level surface and a 15 downhill slope. Flexion of the knee on both surfaces during the single support phase was significantly less for the chondromalacia subjects (P < 0.05). increased external femoral rotation was detected in chondromalacia patellae subjects (P < 0.05) during swing phase on level and sloping surfaces. A radical inward femoral rotation occurred immediately preceding heel strike (P < 0.001). We conclude that significant differences in gait are apparent in females exibiting chondromalacia patellae symptoms as compared with apparently normal female knees.J Orthop Sports Phys Ther 1983;5(3):127-131.