全髋关节置换术后的康复治疗探讨

目的 探讨全髋关节置换术后的康复治疗.方法 2000年1月～2007年1月进行全髋关节置换病人共35例,通过良好的康复训练,使全髋关节置换术后患者获得较佳疗效.结果 由于良好的康复训练治疗,术后随访6月-3年,平均1.2年,本组无1例深静脉血栓、脱位、假体周围骨折、感染、死亡等并发症发生.按Harris髋关节功能评定,术前Harris评分39.5±14.5,术后Harris评分89.5±18.5,术后与术前Harris评分比较t=23.726,P＜0.05.髋关节功能、关节活动度均明显改善.结论 合理的康复训练治疗有助于全髋关节置换术后髋关节恢复到正常功能.     

无柄人工髋关节置换术治疗中青年强直性脊柱炎髋关节骨性强直的临床分析

目的 观察无柄人工髋关节置换术治疗强直性脊柱炎(AS)髋关节骨性强直的效果.方法 对11例(16髋)AS患者行全髋关节置换术,随访0.5～5年,术前髋关节强直屈曲为0～65°(平均23.6°),术后以Harris评分膝关节功能.结果术后患者髋关节疼痛消失,屈曲挛缩畸形基本矫正;X线平片示假体位置良好,无松动、无切口及关节内感染.髋关节活动能力明显改善,屈伸60～125°,外展内旋15～50°,内外旋20～45°;Harris评分术前12.5～55.4分,平均34.5分;术后61～95分,平均86.2分.异位骨化1例,BrookerⅠ级.结论 无柄人工全关节置换术是AS髋关节骨性强直重建关节功能的有效方法,该术式创伤小,出血少,并发症少,易于翻修,较适合年轻患者.     

全髋关节置换术中伴或不伴转子下短缩截骨疗效的Meta分析

目的比较不同手术方法全髋关节置换术后髋关节功能评分及并发症,探讨截骨与不截骨全髋关节置换术的疗效。方法以全髋关节置换术、髋关节发育不良、截骨为检索词并制定检索策略,检索Pub Med、Embase、CNKI、The Cochrane Library(2016年第1期)、Wan Fang Data和VIP数据库,时限为1996年1月~2016年1月间,筛选评价文献,提取相关研究数据,采用Rev Man 5.3软件进行Meta分析。结果纳入5个研究,共计260例患者。全髋关节置换术后截骨组与未截骨组Harris评分差异无统计学意义(Z=1.81,P=0.07),截骨组术后并发症发生率低于未截骨组,差异有统计学意义(Z=2.10,P=0.04)。结论全髋关节置换术治疗髋关节发育不良可显著改善患者关节功能,恢复患肢长度,但术前需严格评估患者关节状况,选择是否行转子下短缩截骨术。     

全髋关节置换术合并软组织松解治疗重度发育性髋关节脱位的临床效果

目的：探讨运用软组织松解和真臼重建的全髋关节置换术治疗重度发育性髋关节脱位伴骨性关节炎的临 床疗效。方法：回顾性分析2005年1月至2011年1月21例(23髋)Crowe III型发育性髋关节脱位伴骨性关节炎的患者行合 并软组织松解和真臼重建的全髋关节置换术的临床疗效,其中女18例,男3例,年龄(45.1±13.2)岁。2例行双侧全髋关 节置换术,19例行单侧全髋关节置换术。术前Harris评分为39.7±5.6。结果：术后随访(110±46)个月,关节痛症状明显 缓解。所有患者在软组织切断松解后,股骨头均复位于真臼部位。术后有1例患者出现坐骨神经刺激症状,术后3个 月内恢复正常,术后肢体不等长长度(11.0±3.5) mm。术后Harris评分为87.2±5.9。结论：运用软组织松解和真臼重建的 全髋关节置换术是治疗重度发育性髋关节脱位伴骨性关节炎的有效方法,但手术难度较大,需要术前制定细致周密 的治疗方案。     

全髋关节置换术治疗 Crowe Ⅳ型髋关节发育不良的疗效观察

目的：探讨全髋关节置换术治疗 Crowe Ⅳ型髋关节发育不良的疗效。方法：选取我院自2010年12月~2014年12月收治入院的50例 Crowe Ⅳ型髋关节发育不良行全髋关节置换术的患者,其中男18例,女32例,年龄3872岁,平均（51.9±14.7）岁,根据术前及术后 Harris 评分及影像学检查评价疗效。结果：本研究随访552个月,平均（25.6±10.1）个月,患肢延长3.15.7cm,平均（4.5±0.8）cm。所有患者患侧的疼痛感均明显降低,关节功能度得到大幅度改善,畸形步态明显改善,所有患者术后伤口均一期愈合,无假体松动,假体周围骨折,无截骨不愈合,无神经损伤及下肢静脉血栓患者,1例患者出现后脱位,于牵引固定4周后恢复。50例患者术前 Harris 评分34.1±18.5,术后提高至86.3±12.9,Harris 评分术前与术后比较,差异具有统计学意义。患者术后各维度 SF-36评分较术前明显升高,差异具有统计学意义。结论：通过全髋关节置换术治疗 Crowe Ⅳ型髋关节发育不良效果显著,可明显改善患者关节功能,提高患者生活质量。     

成人髋臼发育不良应用全髋置换术治疗的临床研究

目的探讨应用全髋置换术治疗成人髋臼发育不良伴骨性关节炎的临床效果。方法系统回顾分析我院应用全髋置换术治疗成人髋臼发育不良伴股性关节炎26例患者的临床资料和随访资料。结果患者术后随访2-5年,有患者髋关节疼痛消失,下肢短缩得到纠正,关节活动功能基本正常,优良率达到92.3%,术后Harris评分90.6±3.6分,术前Harris评分46.8±7.8分,术后较术前明显升高,差异有统计学意义(P<0.05),无假体松动和翻修病例。结论采用全髋置换术治疗成人髋臼发育不良伴股性关节炎可以有效减轻患者的痛苦、改善患者的关节功能,恢复患者生活自理能力,提高患者生活质量,值得推广应用。     

全髋关节置换术治疗强直性脊柱炎髋关节强直效果分析

目的 探讨人工全髋关节置换术治疗强直性脊柱炎致髋关节强直的疗效.方法 2011年6月～2012年10月入西京医院骨关节外科治疗的21例(28髋)强直性脊柱炎致髋关节强直患者行人工全髋关节置换术,对术前、术后患者Harris评分、髋关节总活动度及关节整体功能进行比较.结果 患者髋关节Harris评分由术前6～67(33.5±6.9)分提高到术后73 ～92(87.5±4.6)分,两者比较有统计学差异(P =0.015);髋关节总活动度由术前的0°～ 75°(65.7°±15.2°)提高到术后85°～ 208°(165.7°±32.5°)两者比较有统计学差异(P =0.008).结论 对于强直性脊柱炎晚期髋关节强直患者,人工全髋关节置换术是一种能快速缓解患者疼痛、改善患者髋关节功能的治疗方法.     

长期血液透析患者行全髋关节置换术的围术期处理及预后

目的评价长期血液透析患者行人工全髋关节置换术的有效性、并发症发生率和早期病死率。方法选择2010年1月~2013年6月于中南大学湘雅二医院行工全髋关节置换术的慢性肾功能衰竭患者19例(21髋)为研究对象,术前平均血透时间为(6.10±2.88)年,术前诊断包括股骨头坏死8例(10髋),髋关节骨性关节炎5例,股骨颈骨折6例,94%的患者存在除肾衰以外的其他一种或多种并存病。术前积极治疗并存病,术前24 h予血透1次,选择合适的假体,在全麻下行全髋关节置换术。临床评估其关节功能、视觉模拟评分(VAS)疼痛评分及影像学复查。登记围术期并发症、远期并发症及死亡事件。结果随访8~43个月,平均(22.4±7.8)个月。术前及术后髋关节Harris评分分别为(32.3±22.8)分和(89.6±8.2)分,差异有统计学意义(P<0.05);术前及术后VAS疼痛评分分别为(5.7±1.7)、(0.7±0.1)分,差异有统计学意义(P<0.05)。早期并发症3例,远期并发症3例,无90 d内死亡病例。结论慢性肾衰合并髋关节病患者行全髋关节置换术可以减轻疼痛,改善关节功能,提高生活质量。但是较高的风险及早期并发症不容忽视。经正确的术前评估和围术期处理,手术相对安全可行。     

人工关节置换术治疗股骨头坏死合并头颈吸收短缩疗效观察

目的：探讨人工关节置换术治疗股骨头坏死合并头颈吸收短缩的临床疗效。方法选取玉林市第二人民医院及玉林市中医院2012年6月至2014年6月收治的60例股骨头坏死合并头颈吸收短缩患者作为研究对象,所有患者均行全髋关节置换术,回顾性分析患者手术治疗过程、手术疗效、术后并发症等情况。结果所有患者术后6个月随访的Harris评分为(92.4±2.9)分,较术前[(43.0±4.7)分]明显升高,差异有统计学意义(P<0.05);末次随访的Harris评分为(91.8±4.3)分,与术后6个月的Harris评分比较差异无统计学意义(P>0.05);与术前比较,患者术后的髋关节外旋、内旋、屈曲角度均明显增加,差异均有统计学意义(P<0.05);术后3个月复查均达到骨性稳定。52例患者术后双下肢等长,5例患肢短缩不足1 cm,3例患肢短缩1~2 cm。结论人工全髋关节置换术治疗股骨头坏死合并头颈吸收短缩能够有效松解髋关节囊及周围挛缩软组织,疗效显著。     

人工全髓髋关节置换61例临床应用体会

目的:探讨人工全髓髋关节置换术的适应证、手术方法、临床疗效及并发症.方法:回顾性分析我院2007年1月至2011年5月收治的61例行人工全髓髋关节置换术患者的临床资料,采用Harris髋关节评分法,分别对患者髋关节术前与术后功能进行评分.结果:患者手术前Harris评分平均为44分,术后平均为98分,髋关节功能基本恢复,术前和术后差异显著,具有可比性(P<0.01);并发症发生率为18.03%,患者平均住院时间为20.4±3.7d.结论:人工全髓髋关节置换术治疗髋部疾患效果良好,值得临床推广应用.     

金属对金属全髋关节表面置换术后近期随访

目的 评价金属对金属全髋关节表面置换术后近期随访效果,分析影响髋关符表面置换术疗效的相关因素.方法 我科自2005～2007期问共完成髋关节表面置换术13例.所有病例均进行术前后Harris评分,并均进行规范随访.结果 和结论近期随访结果令人满意,在所有的病例中均无髋关节脱位、周用神经麻木、感染及下肢深静脉栓塞等并发症,所有病例术后疼痛均完全或大部分消失.术前Harris评分:36.69,术后评分升至89.63;术后拐杖使用最多为4周,所有病例均在4周后可完全负重行走.     

Influence of the femoral head size on early postoperative gait restoration after total hip arthroplasty

Background We investigated the effects of using large-diameter femoral heads in total hip prostheses on eady postoperative gait restoration in patients undergoing total hip arthroplasty (THA). Methods We collected data for 19 primary THAs using 28-mm metal-on-polyethylene heads (conventional group) and for 12 THAs (BHR group) using metal-on-metal femoral heads with an average size of 45 mm (range, 40-49 mm). All patients had unilateral femoral head avascular necrosis. All patients underwent Harris Hip Scores evaluation and gait analysis with the IDEEA device at the same 3 time points which were before surgery and then at 1 month and again at 3 months after surgery, and the parameters measured were walking speed, stride length (SL), single limb support (SLS), cycle duration (CD), and swing power (SP). Harris Hip Scores and gait analysis parameters for both groups were compared.Results Intraclass comparison indicated that Harris Hip Scores, speed scores, and gait parameter measures in both groups improved significantly with the passage of time; Interclass comparison showed no significance between Harris1m postop - Harrispreop and Harris3m postop- Harrispreop in both groups. The speed in the BHR group at 1 month and at 3 months after surgery was significantly higher than that of conventional group. At 1 month after surgery, each mean for SLnormal-SLaffected, (SLSnormal - SLSaffected)/CD, and SPnormal - SPaffocted in the BHR group was significantly lower than that for the conventional group. At 3 months after surgery, the differences between means for both groups for SLnormal - SLaffected.(SLSnormal- SLSaffected)/CD, and SPnormal - SPaffected were not significant, but the mean of SPnormal - SPaffected in the BHR group was significantly lower than that in the conventional group.Conclusions Our data suggest that large-diameter femoral heads in THA provide better early gait restoration than conventional-size femoral heads.     

Influence of the femoral head size on early postoperative gait restoration after total hip arthroplasty

Background We investigated the effects of using large-diameter femoral heads in total hip prostheses on eady postoperative gait restoration in patients undergoing total hip arthroplasty (THA). Methods We collected data for 19 primary THAs using 28-mm metal-on-polyethylene heads (conventional group) and for 12 THAs (BHR group) using metal-on-metal femoral heads with an average size of 45 mm (range, 40-49 mm). All patients had unilateral femoral head avascular necrosis. All patients underwent Harris Hip Scores evaluation and gait analysis with the IDEEA device at the same 3 time points which were before surgery and then at 1 month and again at 3 months after surgery, and the parameters measured were walking speed, stride length (SL), single limb support (SLS), cycle duration (CD), and swing power (SP). Harris Hip Scores and gait analysis parameters for both groups were compared.Results Intraclass comparison indicated that Harris Hip Scores, speed scores, and gait parameter measures in both groups improved significantly with the passage of time; Interclass comparison showed no significance between Harris1m postop - Harrispreop and Harris3m postop- Harrispreop in both groups. The speed in the BHR group at 1 month and at 3 months after surgery was significantly higher than that of conventional group. At 1 month after surgery, each mean for SLnormal-SLaffected, (SLSnormal - SLSaffected)/CD, and SPnormal - SPaffocted in the BHR group was significantly lower than that for the conventional group. At 3 months after surgery, the differences between means for both groups for SLnormal - SLaffected.(SLSnormal- SLSaffected)/CD, and SPnormal - SPaffected were not significant, but the mean of SPnormal - SPaffected in the BHR group was significantly lower than that in the conventional group.Conclusions Our data suggest that large-diameter femoral heads in THA provide better early gait restoration than conventional-size femoral heads.     

Influence of the femoral head size on early postoperative gait restoration after total hip arthroplasty

Background We investigated the effects of using large-diameter femoral heads in total hip prostheses on early postoperative gait restoration in patients undergoing total hip arthroplasty （THA）. Methods We collected data for 19 primary THAs using 28-mm metal-on-polyethylene heads （conventional group） and for 12 THAs （BHR group） using metal-on-metal femoral heads with an average size of 45 mm （range, 40-49mm）. All patients had unilateral femoral head avascular necrosis. All patients underwent Harris Hip Scores evaluation and gait analysis with the IDEEA device at the same 3 time points which were before surgery and then at 1 month and again at 3 months after surgery, and the parameters measured were walking speed, stride length （SL）, single limb support （SLS）, cycle duration （CD）, and swing power （SP）. Harris Hip Scores and gait analysis parameters for both groups were compared. Results Intraclass comparison indicated that Harris Hip Scores, speed scores, and gait parameter measures in both groups improved significantly with the passage of time; Interclass comparison showed no significance between Harristm postop - HarriSpreop and Harris3m postop- HarriSpreop in both groups. The speed in the BHR group at 1 month and at 3 months after surgery was significantly higher than that of conventional group. At 1 month after surgery, each mean for SLnormal - SLaffected, （SLSnormal - SLSaffected）/CD, and SPnormal - SPaffected in the BHR group was significantly lower than that for the conventional group. At 3 months after surgery, the differences between means for both groups for SLnormal - SLaffected, （SLSnormal- SLSaffected）/CD, and SPnormal - SPaffected were not significant, but the mean of SPnorrnal - SPaffected in the BHR group was significantly lower than that in the conventional group. Conclusions Our data suggest that large-diameter femoral heads in THA provide better early gait restoration than conventional-size femoral heads.     

Influence of the femoral head size on early postoperative gait restoration after total hip arthroplasty

Background We investigated the effects of using large-diameter femoral heads in total hip prostheses on eady postoperative gait restoration in patients undergoing total hip arthroplasty (THA). Methods We collected data for 19 primary THAs using 28-mm metal-on-polyethylene heads (conventional group) and for 12 THAs (BHR group) using metal-on-metal femoral heads with an average size of 45 mm (range, 40-49 mm). All patients had unilateral femoral head avascular necrosis. All patients underwent Harris Hip Scores evaluation and gait analysis with the IDEEA device at the same 3 time points which were before surgery and then at 1 month and again at 3 months after surgery, and the parameters measured were walking speed, stride length (SL), single limb support (SLS), cycle duration (CD), and swing power (SP). Harris Hip Scores and gait analysis parameters for both groups were compared.Results Intraclass comparison indicated that Harris Hip Scores, speed scores, and gait parameter measures in both groups improved significantly with the passage of time; Interclass comparison showed no significance between Harris1m postop - Harrispreop and Harris3m postop- Harrispreop in both groups. The speed in the BHR group at 1 month and at 3 months after surgery was significantly higher than that of conventional group. At 1 month after surgery, each mean for SLnormal-SLaffected, (SLSnormal - SLSaffected)/CD, and SPnormal - SPaffocted in the BHR group was significantly lower than that for the conventional group. At 3 months after surgery, the differences between means for both groups for SLnormal - SLaffected.(SLSnormal- SLSaffected)/CD, and SPnormal - SPaffected were not significant, but the mean of SPnormal - SPaffected in the BHR group was significantly lower than that in the conventional group.Conclusions Our data suggest that large-diameter femoral heads in THA provide better early gait restoration than conventional-size femoral heads.     

Influence of the femoral head size on early postoperative gait restoration after total hip arthroplasty

Background We investigated the effects of using large-diameter femoral heads in total hip prostheses on eady postoperative gait restoration in patients undergoing total hip arthroplasty (THA). Methods We collected data for 19 primary THAs using 28-mm metal-on-polyethylene heads (conventional group) and for 12 THAs (BHR group) using metal-on-metal femoral heads with an average size of 45 mm (range, 40-49 mm). All patients had unilateral femoral head avascular necrosis. All patients underwent Harris Hip Scores evaluation and gait analysis with the IDEEA device at the same 3 time points which were before surgery and then at 1 month and again at 3 months after surgery, and the parameters measured were walking speed, stride length (SL), single limb support (SLS), cycle duration (CD), and swing power (SP). Harris Hip Scores and gait analysis parameters for both groups were compared.Results Intraclass comparison indicated that Harris Hip Scores, speed scores, and gait parameter measures in both groups improved significantly with the passage of time; Interclass comparison showed no significance between Harris1m postop - Harrispreop and Harris3m postop- Harrispreop in both groups. The speed in the BHR group at 1 month and at 3 months after surgery was significantly higher than that of conventional group. At 1 month after surgery, each mean for SLnormal-SLaffected, (SLSnormal - SLSaffected)/CD, and SPnormal - SPaffocted in the BHR group was significantly lower than that for the conventional group. At 3 months after surgery, the differences between means for both groups for SLnormal - SLaffected.(SLSnormal- SLSaffected)/CD, and SPnormal - SPaffected were not significant, but the mean of SPnormal - SPaffected in the BHR group was significantly lower than that in the conventional group.Conclusions Our data suggest that large-diameter femoral heads in THA provide better early gait restoration than conventional-size femoral heads.     

Influence of the femoral head size on early postoperative gait restoration after total hip arthroplasty

Background We investigated the effects of using large-diameter femoral heads in total hip prostheses on eady postoperative gait restoration in patients undergoing total hip arthroplasty (THA). Methods We collected data for 19 primary THAs using 28-mm metal-on-polyethylene heads (conventional group) and for 12 THAs (BHR group) using metal-on-metal femoral heads with an average size of 45 mm (range, 40-49 mm). All patients had unilateral femoral head avascular necrosis. All patients underwent Harris Hip Scores evaluation and gait analysis with the IDEEA device at the same 3 time points which were before surgery and then at 1 month and again at 3 months after surgery, and the parameters measured were walking speed, stride length (SL), single limb support (SLS), cycle duration (CD), and swing power (SP). Harris Hip Scores and gait analysis parameters for both groups were compared.Results Intraclass comparison indicated that Harris Hip Scores, speed scores, and gait parameter measures in both groups improved significantly with the passage of time; Interclass comparison showed no significance between Harris1m postop - Harrispreop and Harris3m postop- Harrispreop in both groups. The speed in the BHR group at 1 month and at 3 months after surgery was significantly higher than that of conventional group. At 1 month after surgery, each mean for SLnormal-SLaffected, (SLSnormal - SLSaffected)/CD, and SPnormal - SPaffocted in the BHR group was significantly lower than that for the conventional group. At 3 months after surgery, the differences between means for both groups for SLnormal - SLaffected.(SLSnormal- SLSaffected)/CD, and SPnormal - SPaffected were not significant, but the mean of SPnormal - SPaffected in the BHR group was significantly lower than that in the conventional group.Conclusions Our data suggest that large-diameter femoral heads in THA provide better early gait restoration than conventional-size femoral heads.     

Influence of the femoral head size on early postoperative gait restoration after total hip arthroplasty

Background We investigated the effects of using large-diameter femoral heads in total hip prostheses on eady postoperative gait restoration in patients undergoing total hip arthroplasty (THA). Methods We collected data for 19 primary THAs using 28-mm metal-on-polyethylene heads (conventional group) and for 12 THAs (BHR group) using metal-on-metal femoral heads with an average size of 45 mm (range, 40-49 mm). All patients had unilateral femoral head avascular necrosis. All patients underwent Harris Hip Scores evaluation and gait analysis with the IDEEA device at the same 3 time points which were before surgery and then at 1 month and again at 3 months after surgery, and the parameters measured were walking speed, stride length (SL), single limb support (SLS), cycle duration (CD), and swing power (SP). Harris Hip Scores and gait analysis parameters for both groups were compared.Results Intraclass comparison indicated that Harris Hip Scores, speed scores, and gait parameter measures in both groups improved significantly with the passage of time; Interclass comparison showed no significance between Harris1m postop - Harrispreop and Harris3m postop- Harrispreop in both groups. The speed in the BHR group at 1 month and at 3 months after surgery was significantly higher than that of conventional group. At 1 month after surgery, each mean for SLnormal-SLaffected, (SLSnormal - SLSaffected)/CD, and SPnormal - SPaffocted in the BHR group was significantly lower than that for the conventional group. At 3 months after surgery, the differences between means for both groups for SLnormal - SLaffected.(SLSnormal- SLSaffected)/CD, and SPnormal - SPaffected were not significant, but the mean of SPnormal - SPaffected in the BHR group was significantly lower than that in the conventional group.Conclusions Our data suggest that large-diameter femoral heads in THA provide better early gait restoration than conventional-size femoral heads.     

Influence of the femoral head size on early postoperative gait restoration after total hip arthroplasty

Background We investigated the effects of using large-diameter femoral heads in total hip prostheses on eady postoperative gait restoration in patients undergoing total hip arthroplasty (THA). Methods We collected data for 19 primary THAs using 28-mm metal-on-polyethylene heads (conventional group) and for 12 THAs (BHR group) using metal-on-metal femoral heads with an average size of 45 mm (range, 40-49 mm). All patients had unilateral femoral head avascular necrosis. All patients underwent Harris Hip Scores evaluation and gait analysis with the IDEEA device at the same 3 time points which were before surgery and then at 1 month and again at 3 months after surgery, and the parameters measured were walking speed, stride length (SL), single limb support (SLS), cycle duration (CD), and swing power (SP). Harris Hip Scores and gait analysis parameters for both groups were compared.Results Intraclass comparison indicated that Harris Hip Scores, speed scores, and gait parameter measures in both groups improved significantly with the passage of time; Interclass comparison showed no significance between Harris1m postop - Harrispreop and Harris3m postop- Harrispreop in both groups. The speed in the BHR group at 1 month and at 3 months after surgery was significantly higher than that of conventional group. At 1 month after surgery, each mean for SLnormal-SLaffected, (SLSnormal - SLSaffected)/CD, and SPnormal - SPaffocted in the BHR group was significantly lower than that for the conventional group. At 3 months after surgery, the differences between means for both groups for SLnormal - SLaffected.(SLSnormal- SLSaffected)/CD, and SPnormal - SPaffected were not significant, but the mean of SPnormal - SPaffected in the BHR group was significantly lower than that in the conventional group.Conclusions Our data suggest that large-diameter femoral heads in THA provide better early gait restoration than conventional-size femoral heads.     

Influence of the femoral head size on early postoperative gait restoration after total hip arthroplasty

Background We investigated the effects of using large-diameter femoral heads in total hip prostheses on eady postoperative gait restoration in patients undergoing total hip arthroplasty (THA). Methods We collected data for 19 primary THAs using 28-mm metal-on-polyethylene heads (conventional group) and for 12 THAs (BHR group) using metal-on-metal femoral heads with an average size of 45 mm (range, 40-49 mm). All patients had unilateral femoral head avascular necrosis. All patients underwent Harris Hip Scores evaluation and gait analysis with the IDEEA device at the same 3 time points which were before surgery and then at 1 month and again at 3 months after surgery, and the parameters measured were walking speed, stride length (SL), single limb support (SLS), cycle duration (CD), and swing power (SP). Harris Hip Scores and gait analysis parameters for both groups were compared.Results Intraclass comparison indicated that Harris Hip Scores, speed scores, and gait parameter measures in both groups improved significantly with the passage of time; Interclass comparison showed no significance between Harris1m postop - Harrispreop and Harris3m postop- Harrispreop in both groups. The speed in the BHR group at 1 month and at 3 months after surgery was significantly higher than that of conventional group. At 1 month after surgery, each mean for SLnormal-SLaffected, (SLSnormal - SLSaffected)/CD, and SPnormal - SPaffocted in the BHR group was significantly lower than that for the conventional group. At 3 months after surgery, the differences between means for both groups for SLnormal - SLaffected.(SLSnormal- SLSaffected)/CD, and SPnormal - SPaffected were not significant, but the mean of SPnormal - SPaffected in the BHR group was significantly lower than that in the conventional group.Conclusions Our data suggest that large-diameter femoral heads in THA provide better early gait restoration than conventional-size femoral heads.